Repository files navigation

• Important Note from v2.3.0
• Important Note from v2.2.2
• Important Breaking Change from v2.0.0
• Why do we need this EthernetWebServer library
  • Features
  • Currently supported Boards
  • Currently supported Ethernet shields/modules
• Changelog
• Prerequisites
• Installation
  • Use Arduino Library Manager
  • Manual Install
  • VS Code & PlatformIO
• Packages' Patches
  • 1. For Adafruit nRF52840 and nRF52832 boards
  • 2. For Teensy boards
  • 3. For Arduino SAM DUE boards
  • 4. For Arduino SAMD boards
    • For core version v1.8.10+
    • For core version v1.8.9-
  • 5. For Adafruit SAMD boards
  • 6. For Seeeduino SAMD boards
  • 7. For STM32 boards
    • 7.1. For STM32 boards to use LAN8720
    • 7.2. For STM32 boards to use Serial1
  • 8. For RP2040-based boards using Earle Philhower arduino-pico core
    • 8.1. To use BOARD_NAME
    • 8.2. To avoid compile error relating to microsecondsToClockCycles
  • 9. For Portenta_H7 boards using Arduino IDE in Linux
  • 10. For RTL8720DN boards using AmebaD core
  • 11. For SAMD21 and SAMD51 boards using ArduinoCore-fab-sam core
  • 12. For Seeeduino RP2040 boards
  • 13. For Seeeduino nRF52840 boards
• Libraries' Patches
  • 1. For application requiring 2K+ HTML page
  • 2. For Ethernet library
  • 3. For EthernetLarge library
  • 4. For Etherne2 library
  • 5. For Ethernet3 library
  • 6. For UIPEthernet library
  • 7. For fixing ESP32 compile error
  • 8. For fixing ESP8266 compile error
• HOWTO Use analogRead() with ESP32 running WiFi and/or BlueTooth (BT/BLE)
  • 1. ESP32 has 2 ADCs, named ADC1 and ADC2
  • 2. ESP32 ADCs functions
  • 3. ESP32 WiFi uses ADC2 for WiFi functions
• Configuration Notes
  • 1. How to select which built-in Ethernet or shield to use
  • Important
  • 2. How to select another CS/SS pin to use
  • 3. How to use W5x00 with ESP8266
  • 4. How to increase W5x00 TX/RX buffer
  • 5. How to adjust sendContent_P() and send_P() buffer size
  • 6. How to use SPI2 for ESP32 using W5x00 and Ethernet_Generic Library
  • 7. How to use SPI1 for RP2040 using W5x00 and Ethernet_Generic Library
  • 8. How to use SPI1/SPI2 for Teensy 4.x using W5x00 and Ethernet_Generic Library
  • 9. Important Note for AVRDx using Arduino IDENew
• Usage
  • Init the CS/SS pin if use EthernetWrapper
  • Class Constructor
  • Basic Operation
  • Advanced Options
  • Other Function Calls
• Examples
  • Original Examples
    • 1. AdvancedWebServer
    • 2.SimpleWebServer_NativeEthernet
    • 3. HelloServer
    • 4. HelloServer2
    • 5. HttpBasicAuth
    • 6.MQTTClient_Auth
    • 7.MQTTClient_Basic
    • 8.MQTT_ThingStream
    • 9. PostServer
    • 10. SimpleAuthentication
    • 11. UdpNTPClient
    • 12. UdpSendReceive
    • 13. WebClient
    • 14. WebClient_ESP
    • 15. WebClientRepeating
    • 16. WebClientRepeating_ESP
    • 17. WebServer
    • 18.WebServer_NativeEthernet
    • 19.ESP32_FS_EthernetWebServer
    • 20.FS_EthernetWebServer
    • 21.serveStatic
    • 22.serveStaticLoadFile
    • 23.AdvancedWebServer_Ptr
    • 24. multiFileProjectNew
    • 25. EthernetWebServer_BigDataNew
  • HTTP and WebSocket Client New Examples
    • 1. BasicAuthGet
    • 2. CustomHeader
    • 3. DweetGet
    • 4. DweetPost
    • 5. HueBlink
    • 6. node_test_server
    • 7. PostWithHeaders
    • 8. SimpleDelete
    • 9. SimpleGet
    • 10. SimpleHTTPExample
    • 11. SimplePost
    • 12. SimplePut
    • 13. SimpleWebSocket
  • New Examples for Teensy 4.1 QNEthernet
    • 1.AdvancedWebServer
    • 2.MQTTClient_Auth
    • 3.MQTTClient_Basic
    • 4.MQTT_ThingStream
  • New Examples for ESP32 and ESP8266 using with WebServer or ESP8266WebServer
    • 1.WiFi_Ethernet_Complex_ESP32
    • 2.WiFi_Ethernet_Complex_ESP8266
  • New Examples for ESP32 using SPI2
    • 1.AdvancedWebServer_ESP32_SPI2New
  • New Examples for SPI1/SPI2
    • 1.AdvancedWebServer_RP2040_SPI1New
    • 2.AdvancedWebServer_Teensy4x_SPI1New
• Example AdvancedWebServer
  • 1. File AdvancedWebServer.ino
  • 2. File defines.h
• Debug Terminal Output Samples
  • 1. AdvancedWebServer on NRF52840_FEATHER_EXPRESS with ENC28J60 using EthernetENC Library
  • 2. ENC28J60_WM_Config on ESP32 with ENC28J60 using UIPEthernet Library
  • 3. SimpleWebSocket on SAM DUE with W5x00 using Ethernet_Generic Library
  • 4. DweetPost on NRF52840_FEATHER with W5x00 using Ethernet_Generic Library
  • 5. ESP32_FS_EthernetWebServer on ESP32 using LittleFS with W5x00 using Ethernet_Generic Library
  • 6. FS_EthernetWebServer on ESP8266 using LittleFS with W5x00 using Ethernet_Generic Library
  • 7. serveStatic on ESP8266 using LittleFS with W5x00 using Ethernet_Generic Library
  • 8. SimpleWebServer_NativeEthernet on Teensy 4.1 with NativeEthernet library
  • 9. AdvancedWebServer on MBED RASPBERRY_PI_PICO with W5x00 using Ethernet_Generic Library
  • 10. MQTTClient_Auth on MBED RASPBERRY_PI_PICO with W5x00 using Ethernet_Generic Library
  • 11. AdvancedWebServer on RASPBERRY_PI_PICO with W5x00 using Ethernet_Generic Library
  • 12. UdpNTPClient on RASPBERRY_PI_PICO with W5x00 using Ethernet_Generic Library
  • 13. AdvancedWebServer on Teensy 4.1 using NativeEthernet Library
  • 14. AdvancedWebServer on Teensy 4.1 using QNEthernet Library
  • 15. MQTTClient_Auth on Teensy 4.1 using QNEthernet Library
  • 16. AdvancedWebServer on PORTENTA_H7_M7 with Ethernet using Portenta_Ethernet Library
  • 17. SimpleWebSocket on PORTENTA_H7_M7 with Ethernet using Portenta_Ethernet Library
  • 18. MQTTClient_Auth on PORTENTA_H7_M7 with Ethernet using Portenta_Ethernet Library
  • 19. WiFi_Ethernet_Complex_ESP32 on ESP32_DEV
  • 20. WiFi_Ethernet_Complex_ESP8266 on ESP8266_NODEMCU_ESP12E
  • 21. AdvancedWebServer_ESP32_SPI2 on ESP32_DEV with W5x00 using Ethernet_Generic Library on SPI2
  • 22. AdvancedWebServer on RASPBERRY_PI_PICO with W5x00 using Ethernet_Generic Library on SPI1
  • 23. AdvancedWebServer_RP2040_SPI1 on MBED RASPBERRY_PI_PICO with W5x00 using Ethernet_Generic Library on SPI1
  • 24. AdvancedWebServer_Teensy4x_SPI1 on TEENSY 4.1 with W5x00 using Ethernet_Generic Library on SPI1
  • 25. AdvancedWebServer on Curiosity AVR_AVR128DA48 with W5x00 using Ethernet_Generic Library on SPI
  • 26. EthernetWebServer_BigData on NRF52840_FEATHER
  • 27. EthernetWebServer_BigData on RASPBERRY_PI_PICO
  • 28. AdvancedWebServer on ESP32_DEV with W6100 using Ethernet_Generic Library on SPI
• Debug
• Troubleshooting
• Issues
• TO DO
• DONE
• Contributions and Thanks
• Contributing
• License
• Copyright

The newEthernetWebServer v2.4.1+ combined with the newEthernet_Generic v2.7.0+ fixes severe limitation to permit sending much larger data than total than2/4/8/16K buffer ofW5x00 Ethernet.

To be safe for systems using oldW5100 shields, theexamples are usingoptional conservative values for SPI clock speed of 14MHz andSPI_MODE0

ForSAMD21 M0, such asSAMD Zero, SPI clock speed of 8MHz andSPI_MODE0 are used.

// Default to use W5100. Must change to false for W5500, W5100S, for faster SPI clock// Must use true for SAMD21, such as Zero, SAMD_FEATHER_M0_EXPRESS, etc.#define USE_W5100                           true

To use with shields different fromW5100, such asW5200, W5500, W5100S, change to

// Default to use W5100. Must change to false for W5500, W5100S, for faster SPI clock#define USE_W5100                           false

For Arduino SAMD21 Zero, in order to print to Terminal, useSERIAL_PORT_USBVIRTUAL ==SerialUSB

// Use this for ARDUINO_SAMD_ZERO, etc. if can't print to terminal with Serial.print#if defined(SERIAL_PORT_USBVIRTUAL)  #define Serial          SERIAL_PORT_USBVIRTUAL  #warning Using SAMD Zero SerialUSB#endif

From v2.0.0,breaking changes were made to permit coexistence withESP32 WebServer andESP8266 ESP8266WebServer libraries.

The changes will affect only ESP32 and ESP8266 code.

Ifserver usingEthernetWebServer, then useethernetHTTPUpload instead ofHTTPUpload.HTTPUpload can be used only withserver using WiFiWebServer orESP8266WebServer

For example, in these examples,server is usingEthernetWebServer

• ESP32_FS_EthernetWebServer.ino#L238
• FS_EthernetWebServer.ino#L235

just change from

HTTPUpload& upload = server.upload();

to

ethernetHTTPUpload& upload = server.upload();

Please check these new examples to see how to use the new features

1. WiFi_Ethernet_Complex_ESP32
2. WiFi_Ethernet_Complex_ESP8266

ThisEthernetWebServer library is a simple yet complete WebServer library forAVR, Portenta_H7, Teensy, SAM DUE, Arduino SAMD21, Adafruit SAMD21/SAMD51, Adafruit nRF52, ESP32/ESP8266, STM32, RP2040-based, etc. boards using Ethernet shields. The functions are similar and compatible to those ofESP32 WebServer andESP8266WebServer libraries to make life much easier to port sketches from ESP8266/ESP32.

TheRP2040-based boards, such as RASPBERRY_PI_PICO, are currently supported usingArduino-mbed RP2040 core orEarle Philhower's arduino-pico core.

ThisEthernetWebServer library, from v1.1.0, also provides high-levelHTTP and WebSocket Client with the functions are similar and compatible to those ofArduinoHttpClient Library

The library provides these features:

1. TCP Server and Client
2. UDP Server and Client
3. HTTP Server and Client
4. HTTP GET and POST requests, provides argument parsing, handles one client at a time.
5. High-level HTTP (GET, POST, PUT, PATCH, DELETE) and WebSocket Client. From v1.1.0.

Library is based on and modified from:

1. Ivan Grokhotkov's ESP8266WebServer
2. Ivan Grokhotkov's ESP32 WebServer
3. ArduinoHttpClient Library

The EthernetWebServer class, found inEthernetWebServer.h header, is a simple WebServer class, knowing how to handle HTTP requests such as GET and POST and can only support one simultaneous client.

ThisEthernetWebServer library currently supports these following boards:

1. nRF52 boards, such asAdaFruit Feather nRF52832, nRF52840 Express, BlueFruit Sense, Itsy-Bitsy nRF52840 Express, Metro nRF52840 Express, NINA_B302_ublox, NINA_B112_ublox, etc.
2. SAM DUE
3. SAMD21

• Arduino SAMD21: ZERO, MKRs, NANO_33_IOT, etc.
• Adafruit SAMD21 (M0): ItsyBitsy M0, Feather M0, Feather M0 Express, Metro M0 Express, Circuit Playground Express, Trinket M0, PIRkey, Hallowing M0, Crickit M0, etc.
• Seeeduino: LoRaWAN, Zero, Femto M0, XIAO M0, Wio GPS Board, etc.

4. SAMD51

• Adafruit SAMD51 (M4): Metro M4, Grand Central M4, ItsyBitsy M4, Feather M4 Express, Trellis M4, Metro M4 AirLift Lite, MONSTER M4SK Express, Hallowing M4, etc.
• Seeeduino: Wio Terminal, Grove UI Wireless

5. Teensy (4.1, 4.0, 3.6, 3.5, 3,2, 3.1, 3.0, LC) with SPI, SPI1, SPI2

6. AVR Mega1280, 2560, ADK.

7. ESP32

8. ESP8266

9. RP2040-based boards, such asRASPBERRY_PI_PICO, ADAFRUIT_FEATHER_RP2040 and GENERIC_RP2040, usingArduino-mbed RP2040 core orEarle Philhower's arduino-pico core withSPI, SPI1

10. Portenta_H7

11. Arduino UNO WiFi Rev2, AVR_NANO_EVERY, etc.

12. Arduino AVR_Dx boards using DxCore

• AVRDA-based boards (AVR128DA, AVR64DA, AVR32DA, etc.)

• AVRDB-based boards (AVR128DB, AVR64DB, AVR32DB, etc.)

13. Seeeduino nRF52840-based boards such as XIAO_NRF52840 and XIAO_NRF52840_SENSE, etc. using Seeedmbed ornRF52 core

1. W5x00/W5100S usingEthernet_Generic library

2. W6100, such as such asWIZnet WIZ610MJ, usingEthernet_Generic library

3. W5x00 usingEthernet,EthernetLarge,Ethernet2 orEthernet3 library
4. ENC28J60 usingEthernetENC orUIPEthernet library
5. Teensy 4.1 built-in Ethernet usingNativeEthernet library
6. Teensy 4.1 built-in Ethernet usingQNEthernet library
7. Portenta_H7 Ethernet usingPortenta_Ethernet library

1. Arduino IDE 1.8.19+ for Arduino.
2. Arduino AVR core 1.8.6+ for Arduino (Use Arduino Board Manager) AVR boards.
3. Teensy core v1.57+ for Teensy (4.1, 4.0, 3.6, 3.5, 3,2, 3.1, 3.0) boards.
4. Arduino SAM DUE core v1.6.12+ for SAM DUE ARM Cortex-M3 boards.
5. Arduino SAMD core 1.8.13+ for SAMD ARM Cortex-M0+ boards.
6. Adafruit SAMD core 1.7.11+ for SAMD ARM Cortex-M0+ and M4 boards (Nano 33 IoT, etc.).
7. Seeeduino SAMD core 1.8.3+ for SAMD21/SAMD51 boards (XIAO M0, Wio Terminal, etc.).
8. Adafruit nRF52 v1.3.0+ for nRF52 boards such as Adafruit NRF52840_FEATHER, NRF52832_FEATHER, NRF52840_FEATHER_SENSE, NRF52840_ITSYBITSY, NRF52840_CIRCUITPLAY, NRF52840_CLUE, NRF52840_METRO, NRF52840_PCA10056, PARTICLE_XENON,NINA_B302_ublox, etc.
9. ESP32 Core 2.0.6+ for ESP32-based boards.
10. ESP8266 Core 3.1.0+ for ESP8266-based boards.. To use ESP8266 core 2.7.1+ for LittleFS.
11. ArduinoCore-mbed mbed_rp2040, mbed_nano, mbed_portenta core 3.5.1+ for Arduino (Use Arduino Board Manager)Portenta_H7, RP2040-based boards, such as Nano_RP2040_Connect, RASPBERRY_PI_PICO.
12. Earle Philhower's arduino-pico core v2.7.0+ for RP2040-based boards such asRASPBERRY_PI_PICO, ADAFRUIT_FEATHER_RP2040 and GENERIC_RP2040, etc.
13. Arduino megaAVR core 1.8.7+ for Arduino megaAVR boards such asArduino UNO WiFi Rev2, AVR_NANO_EVERY, etc..
14. SpenceKonde DxCore core 1.5.2+ for Arduino AVRDx boards.. FollowDxCore Installation.
15. Seeeduino nRF52 core 1.1.0+ for Seeed nRF52840-based boards such asSeeed_XIAO_NRF52840 and Seeed_XIAO_NRF52840_SENSE.
16. Seeeduino mbed core 2.9.0+ for Seeed nRF52840-based boards such asSEEED_XIAO_NRF52840 and SEEED_XIAO_NRF52840_SENSE.
17. Functional-Vlpp library v1.0.2+ to use server's lambda function. To install. check
18. Depending on which Ethernet card you're using:

• Ethernet_Generic library v2.8.1+ for W5100, W5200 and W5500/WIZ550io/WIZ850io/USR-ES1 with Wiznet W5500 chip.
• EthernetENC library v2.0.3+ for ENC28J60..New and Better
• UIPEthernet library v2.0.12+ for ENC28J60.
• NativeEthernet Library version stable111+ for Teensy 4.1 built-in Ethernet.
• QNEthernet Library version v0.17.0+ for Teensy 4.1 built-in Ethernet.

The best and easiest way is to useArduino Library Manager. Search forEthernetWebServer, then select / install the latest version.You can also use this link for more detailed instructions.

1. Navigate toEthernetWebServer page.
2. Download the latest releaseEthernetWebServer-master.zip.
3. Extract the zip file toEthernetWebServer-master directory
4. Copy the wholeEthernetWebServer-master folder to Arduino libraries' directory such as~/Arduino/libraries/.

1. InstallVS Code
2. InstallPlatformIO
3. InstallEthernetWebServer library by usingLibrary Manager. Search for EthernetWebServer inPlatform.io Author's Libraries
4. Use includedplatformio.ini file from examples to ensure that all dependent libraries will installed automatically. Please visit documentation for the other options and examples atProject Configuration File

To be able to compile, run and automatically detect and display BOARD_NAME on nRF52840/nRF52832 boards, you have to copy the wholenRF52 Packages_Patches directory into Adafruit nRF52 directory (~/.arduino15/packages/adafruit/hardware/nrf52/1.3.0).

Supposing the Adafruit nRF52 version is 1.3.0. These files must be copied into the directory:

• ~/.arduino15/packages/adafruit/hardware/nrf52/1.3.0/platform.txt
• ~/.arduino15/packages/adafruit/hardware/nrf52/1.3.0/boards.txt
• ~/.arduino15/packages/adafruit/hardware/nrf52/1.3.0/cores/nRF5/Udp.h
• ~/.arduino15/packages/adafruit/hardware/nrf52/1.3.0/cores/nRF5/Print.h
• ~/.arduino15/packages/adafruit/hardware/nrf52/1.3.0/cores/nRF5/Print.cpp
• ~/.arduino15/packages/adafruit/hardware/nrf52/1.3.0/variants/NINA_B302_ublox/variant.h
• ~/.arduino15/packages/adafruit/hardware/nrf52/1.3.0/variants/NINA_B302_ublox/variant.cpp
• ~/.arduino15/packages/adafruit/hardware/nrf52/1.3.0/variants/NINA_B112_ublox/variant.h
• ~/.arduino15/packages/adafruit/hardware/nrf52/1.3.0/variants/NINA_B112_ublox/variant.cpp
• ~/.arduino15/packages/adafruit/hardware/nrf52/1.3.0/cores/nRF5/Udp.h

Whenever a new version is installed, remember to copy these files into the new version directory. For example, new version is x.yy.zThese files must be copied into the directory:

• ~/.arduino15/packages/adafruit/hardware/nrf52/x.yy.z/platform.txt
• ~/.arduino15/packages/adafruit/hardware/nrf52/x.yy.z/boards.txt
• ~/.arduino15/packages/adafruit/hardware/nrf52/x.yy.z/cores/nRF5/Udp.h
• ~/.arduino15/packages/adafruit/hardware/nrf52/x.yy.z/cores/nRF5/Print.h
• ~/.arduino15/packages/adafruit/hardware/nrf52/x.yy.z/cores/nRF5/Print.cpp
• ~/.arduino15/packages/adafruit/hardware/nrf52/x.yy.z/variants/NINA_B302_ublox/variant.h
• ~/.arduino15/packages/adafruit/hardware/nrf52/x.yy.z/variants/NINA_B302_ublox/variant.cpp
• ~/.arduino15/packages/adafruit/hardware/nrf52/x.yy.z/variants/NINA_B112_ublox/variant.h
• ~/.arduino15/packages/adafruit/hardware/nrf52/x.yy.z/variants/NINA_B112_ublox/variant.cpp
• ~/.arduino15/packages/adafruit/hardware/nrf52/x.yy.z/cores/nRF5/Udp.h

To be able to compile and run on Teensy boards, you have to copy the files inPackages_Patches for Teensy directory into Teensy hardware directory (./arduino-1.8.19/hardware/teensy/avr/boards.txt).

Supposing the Arduino version is 1.8.19. These files must be copied into the directory:

• ./arduino-1.8.19/hardware/teensy/avr/boards.txt
• ./arduino-1.8.19/hardware/teensy/avr/cores/teensy/Stream.h
• ./arduino-1.8.19/hardware/teensy/avr/cores/teensy3/Stream.h
• ./arduino-1.8.19/hardware/teensy/avr/cores/teensy4/Stream.h

Whenever a new version is installed, remember to copy this file into the new version directory. For example, new version is x.yy.zzThese files must be copied into the directory:

• ./arduino-x.yy.zz/hardware/teensy/avr/boards.txt
• ./arduino-x.yy.zz/hardware/teensy/avr/cores/teensy/Stream.h
• ./arduino-x.yy.zz/hardware/teensy/avr/cores/teensy3/Stream.h
• ./arduino-x.yy.zz/hardware/teensy/avr/cores/teensy4/Stream.h

To be able to compile and run on SAM DUE boards, you have to copy the wholeSAM DUE directory into Arduino sam directory (~/.arduino15/packages/arduino/hardware/sam/1.6.12).

Supposing the Arduino SAM core version is 1.6.12. This file must be copied into the directory:

• ~/.arduino15/packages/arduino/hardware/sam/1.6.12/platform.txt

Whenever a new version is installed, remember to copy this file into the new version directory. For example, new version is x.yy.zzThis file must be copied into the directory:

• ~/.arduino15/packages/arduino/hardware/sam/x.yy.zz/platform.txt

To be able to compile, run and automatically detect and display BOARD_NAME on Arduino SAMD (Nano-33-IoT, etc) boards, you have to copy the wholeArduino SAMD Packages_Patches directory into Arduino SAMD directory (~/.arduino15/packages/arduino/hardware/samd/1.8.13).

Supposing the Arduino SAMD version is 1.8.13. Now only one file must be copied into the directory:

• ~/.arduino15/packages/arduino/hardware/samd/1.8.13/platform.txt

Whenever a new version is installed, remember to copy this files into the new version directory. For example, new version is x.yy.zz

This file must be copied into the directory:

• ~/.arduino15/packages/arduino/hardware/samd/x.yy.zz/platform.txt

Supposing the Arduino SAMD version is 1.8.9. These files must be copied into the directory:

• ~/.arduino15/packages/arduino/hardware/samd/1.8.9/platform.txt
• ~/.arduino15/packages/arduino/hardware/samd/1.8.9/cores/arduino/Arduino.h

Whenever a new version is installed, remember to copy these files into the new version directory. For example, new version is x.yy.z

These files must be copied into the directory:

• ~/.arduino15/packages/arduino/hardware/samd/x.yy.z/platform.txt
• ~/.arduino15/packages/arduino/hardware/samd/x.yy.z/cores/arduino/Arduino.h

This is mandatory to fix thenotorious Arduino SAMD compiler error. SeeImprove Arduino compatibility with the STL (min and max macro)

 ...\arm-none-eabi\include\c++\7.2.1\bits\stl_algobase.h:243:56: error: macro "min" passed 3 arguments, but takes just 2     min(const _Tp& __a, const _Tp& __b, _Compare __comp)

Whenever the above-mentioned compiler error issue is fixed with the new Arduino SAMD release, you don't need to copy theArduino.h file anymore.

To be able to compile, run and automatically detect and display BOARD_NAME on Adafruit SAMD (Itsy-Bitsy M4, etc) boards, you have to copy the wholeAdafruit SAMD Packages_Patches directory into Adafruit samd directory (~/.arduino15/packages/adafruit/hardware/samd/1.7.11).

Supposing the Adafruit SAMD core version is 1.7.11. These files must be copied into the directory:

• ~/.arduino15/packages/adafruit/hardware/samd/1.7.11/platform.txt
• ~/.arduino15/packages/adafruit/hardware/samd/1.7.11/cores/arduino/Print.h
• ~/.arduino15/packages/adafruit/hardware/samd/1.7.11/cores/arduino/Print.cpp

Whenever a new version is installed, remember to copy this file into the new version directory. For example, new version is x.yy.zzThese files must be copied into the directory:

• ~/.arduino15/packages/adafruit/hardware/samd/x.yy.zz/platform.txt
• ~/.arduino15/packages/adafruit/hardware/samd/x.yy.zz/cores/arduino/Print.h
• ~/.arduino15/packages/adafruit/hardware/samd/x.yy.zz/cores/arduino/Print.cpp

To be able to compile, run and automatically detect and display BOARD_NAME on Seeeduino SAMD (XIAO M0, Wio Terminal, etc) boards, you have to copy the wholeSeeeduino SAMD Packages_Patches directory into Seeeduino samd directory (~/.arduino15/packages/Seeeduino/hardware/samd/1.8.3).

Supposing the Seeeduino SAMD core version is 1.8.3. These files must be copied into the directory:

• ~/.arduino15/packages/Seeeduino/hardware/samd/1.8.3/platform.txt
• ~/.arduino15/packages/Seeeduino/hardware/samd/1.8.3/cores/arduino/Arduino.h
• ~/.arduino15/packages/Seeeduino/hardware/samd/1.8.3/cores/arduino/Print.h
• ~/.arduino15/packages/Seeeduino/hardware/samd/1.8.3/cores/arduino/Print.cpp

Whenever a new version is installed, remember to copy this file into the new version directory. For example, new version is x.yy.zzThese files must be copied into the directory:

• ~/.arduino15/packages/Seeeduino/hardware/samd/x.yy.zz/platform.txt
• ~/.arduino15/packages/Seeeduino/hardware/samd/x.yy.zz/cores/arduino/Arduino.h
• ~/.arduino15/packages/Seeeduino/hardware/samd/x.yy.zz/cores/arduino/Print.h
• ~/.arduino15/packages/Seeeduino/hardware/samd/x.yy.zz/cores/arduino/Print.cpp

ForGeneric STM32F4 series boards, such asSTM32F407VE, usingLAN8720, please use STM32 corev2.2.0 as breaking corev2.3.0 creates the compile error.

To use LAN8720 on some STM32 boards

• Nucleo-144 (F429ZI, NUCLEO_F746NG, NUCLEO_F746ZG, NUCLEO_F756ZG)
• Discovery (DISCO_F746NG)
• STM32F4 boards (BLACK_F407VE, BLACK_F407VG, BLACK_F407ZE, BLACK_F407ZG, BLACK_F407VE_Mini, DIYMORE_F407VGT, FK407M1)

you have to copy the filesstm32f4xx_hal_conf_default.h andstm32f7xx_hal_conf_default.h into STM32 stm32 directory (~/.arduino15/packages/STM32/hardware/stm32/2.3.0/system) to overwrite the old files.

Supposing the STM32 stm32 core version is 2.3.0. These files must be copied into the directory:

• ~/.arduino15/packages/STM32/hardware/stm32/2.3.0/system/STM32F4xx/stm32f4xx_hal_conf_default.h for STM32F4.
• ~/.arduino15/packages/STM32/hardware/stm32/2.3.0/system/STM32F7xx/stm32f7xx_hal_conf_default.h for Nucleo-144 STM32F7.

Whenever a new version is installed, remember to copy this file into the new version directory. For example, new version is x.yy.zz,these files must be copied into the corresponding directory:

• ~/.arduino15/packages/STM32/hardware/stm32/x.yy.zz/system/STM32F4xx/stm32f4xx_hal_conf_default.h
• `~/.arduino15/packages/STM32/hardware/stm32/x.yy.zz/system/STM32F7xx/stm32f7xx_hal_conf_default.h

To use Serial1 on some STM32 boards without Serial1 definition (Nucleo-144 NUCLEO_F767ZI, Nucleo-64 NUCLEO_L053R8, etc.) boards, you have to copy the filesSTM32 variant.h into STM32 stm32 directory (~/.arduino15/packages/STM32/hardware/stm32/2.3.0). You have to modify the files corresponding to your boards, this is just an illustration how to do.

Supposing the STM32 stm32 core version is 2.3.0. These files must be copied into the directory:

• ~/.arduino15/packages/STM32/hardware/stm32/2.3.0/variants/STM32F7xx/F765Z(G-I)T_F767Z(G-I)T_F777ZIT/NUCLEO_F767ZI/variant.h for Nucleo-144 NUCLEO_F767ZI.
• ~/.arduino15/packages/STM32/hardware/stm32/2.3.0/variants/STM32L0xx/L052R(6-8)T_L053R(6-8)T_L063R8T/NUCLEO_L053R8/variant.h for Nucleo-64 NUCLEO_L053R8.

Whenever a new version is installed, remember to copy this file into the new version directory. For example, new version is x.yy.zz,these files must be copied into the corresponding directory:

• ~/.arduino15/packages/STM32/hardware/stm32/x.yy.zz/variants/STM32F7xx/F765Z(G-I)T_F767Z(G-I)T_F777ZIT/NUCLEO_F767ZI/variant.h
• ~/.arduino15/packages/STM32/hardware/stm32/x.yy.zz/variants/STM32L0xx/L052R(6-8)T_L053R(6-8)T_L063R8T/NUCLEO_L053R8/variant.h

To be able to automatically detect and display BOARD_NAME on RP2040-based boards (RASPBERRY_PI_PICO, ADAFRUIT_FEATHER_RP2040, GENERIC_RP2040, etc) boards, you have to copy the fileRP2040 platform.txt into rp2040 directory (~/.arduino15/packages/rp2040/hardware/rp2040/1.4.0).

Supposing the rp2040 core version is 1.4.0. This file must be copied into the directory:

• ~/.arduino15/packages/rp2040/hardware/rp2040/1.4.0/platform.txt

Whenever a new version is installed, remember to copy this file into the new version directory. For example, new version is x.yy.zzThis file must be copied into the directory:

• ~/.arduino15/packages/rp2040/hardware/rp2040/x.yy.zz/platform.txt

With core after v1.5.0, this step is not necessary anymore thanks to the PRAdd -DBOARD_NAME="{build.board}" #136.

Some libraries, such asAdafruit DHT-sensor-library, require the definition of microsecondsToClockCycles().To be able to compile and run on RP2040-based boards, you have to copy the files inRP2040 Arduino.h into rp2040 directory (~/.arduino15/packages/rp2040/hardware/rp2040/1.4.0).

Supposing the rp2040 core version is 1.4.0. This file must be copied to replace:

• ~/.arduino15/packages/rp2040/hardware/rp2040/1.4.0/cores/rp2040/Arduino.h

Whenever a new version is installed, remember to copy this file into the new version directory. For example, new version is x.yy.zzThis file must be copied to replace:

• ~/.arduino15/packages/rp2040/hardware/rp2040/x.yy.zz/cores/rp2040/Arduino.h

With core after v1.5.0, this step is not necessary anymore thanks to the PRAdd defs for compatibility #142.

To be able to upload firmware to Portenta_H7 using Arduino IDE in Linux (Ubuntu, etc.), you have to copy the fileportenta_post_install.sh into mbed_portenta directory (~/.arduino15/packages/arduino/hardware/mbed_portenta/3.4.1/portenta_post_install.sh).

Then run the following command usingsudo

$ cd ~/.arduino15/packages/arduino/hardware/mbed_portenta/3.4.1$ chmod 755 portenta_post_install.sh$ sudo ./portenta_post_install.sh

This will create the file/etc/udev/rules.d/49-portenta_h7.rules as follows:

# Portenta H7 bootloader mode UDEV rulesSUBSYSTEMS=="usb", ATTRS{idVendor}=="2341", ATTRS{idProduct}=="035b", GROUP="plugdev", MODE="0666"

Supposing the ArduinoCore-mbed core version is 3.4.1. Now only one file must be copied into the directory:

• ~/.arduino15/packages/arduino/hardware/mbed_portenta/3.4.1/portenta_post_install.sh

Whenever a new version is installed, remember to copy this files into the new version directory. For example, new version is x.yy.zz

This file must be copied into the directory:

• ~/.arduino15/packages/arduino/hardware/mbed_portenta/x.yy.zz/portenta_post_install.sh

To avoid compile error relating to PROGMEM, you have to copy the fileRealtek AmebaD core pgmspace.h into Realtek AmebaD directory (~/.arduino15/packages/realtek/hardware/AmebaD/3.1.4/cores/ambd/avr/pgmspace.h).

Supposing the Realtek AmebaD core version is 3.1.4. This file must be copied into the directory:

• ~/.arduino15/packages/realtek/hardware/AmebaD/3.1.4/cores/ambd/avr/pgmspace.h

Whenever a new version is installed, remember to copy this file into the new version directory. For example, new version is x.yy.zzThis file must be copied into the directory:

• ~/.arduino15/packages/realtek/hardware/AmebaD/x.yy.zz/cores/ambd/avr/pgmspace.h

To avoid compile error relating to SAMD21/SAMD51, you have to copy the fileArduinoCore-fab-sam core pgmspace.h intoArduinoCore-fab-sam samd directory (~/.arduino15/packages/Fab_SAM_Arduino/hardware/samd/1.9.0/boards.txt).

Supposing theArduinoCore-fab-sam samd core version is 1.9.0. This file must be copied into the directory:

• ~/.arduino15/packages/Fab_SAM_Arduino/hardware/samd/1.9.0/boards.txt

Whenever a new version is installed, remember to copy this file into the new version directory. For example, new version is x.yy.zzThis file must be copied into the directory:

• ~/.arduino15/packages/Fab_SAM_Arduino/hardware/samd/x.yy.zz/boards.txt

To be able to compile, run and automatically detect and display BOARD_NAME on Seeeduino RP2040 (XIAO RP2040, Wio RP2040 Mini) boards, you have to copy the wholeSeeeduino RP2040 Packages_Patches directory into Seeeduino samd directory (~/.arduino15/packages/Seeeduino/hardware/rp2040/2.7.2).

Supposing the Seeeduino RP2040 core version is 2.7.2. These files must be copied into the directory:

• ~/.arduino15/packages/Seeeduino/hardware/rp2040/2.7.2/boards.txt
• ~/.arduino15/packages/Seeeduino/hardware/rp2040/2.7.2/variants/Seeed_XIAO_RP2040/pins_arduino.h

Whenever a new version is installed, remember to copy this file into the new version directory. For example, new version is x.yy.zzThese files must be copied into the directory:

• ~/.arduino15/packages/Seeeduino/hardware/samd/x.yy.zz/boards.txt
• ~/.arduino15/packages/Seeeduino/hardware/samd/x.yy.zz/variants/Seeed_XIAO_RP2040/pins_arduino.h

To be able to compile and run on Xiao nRF52840 boards, you have to copy the wholenRF52 1.0.0 directory into Seeeduino nRF52 directory (~/.arduino15/packages/Seeeduino/hardware/nrf52/1.0.0).

Supposing the Seeeduino nRF52 version is 1.0.0. These files must be copied into the directory:

• ~/.arduino15/packages/Seeeduino/hardware/nrf52/1.0.0/platform.txt
• ~/.arduino15/packages/Seeeduino/hardware/nrf52/1.0.0/cores/nRF5/Print.h
• ~/.arduino15/packages/Seeeduino/hardware/nrf52/1.0.0/cores/nRF5/Print.cpp
• ~/.arduino15/packages/Seeeduino/hardware/nrf52/1.0.0/cores/nRF5/Udp.h

Whenever a new version is installed, remember to copy these files into the new version directory. For example, new version is x.yy.zThese files must be copied into the directory:

• ~/.arduino15/packages/Seeeduino/hardware/nrf52/x.yy.z/platform.txt
• ~/.arduino15/packages/Seeeduino/hardware/nrf52/x.yy.z/cores/nRF5/Print.h
• ~/.arduino15/packages/Seeeduino/hardware/nrf52/x.yy.z/cores/nRF5/Print.cpp
• ~/.arduino15/packages/Seeeduino/hardware/nrf52/x.yy.z/cores/nRF5/Udp.h

If your application requires 2K+ HTML page, the currentEthernet library must be modified if you are using W5200/W5500 Ethernet shields. W5100 is not supported for 2K+ buffer. If you use boards requiring different CS/SS pin for W5x00 Ethernet shield, for example ESP32, ESP8266, nRF52, etc., you also have to modify the following libraries to be able to specify the CS/SS pin correctly.

To fixEthernet library, just copy these following files into theEthernet library directory to overwrite the old files:

• Ethernet.h
• Ethernet.cpp
• EthernetServer.cpp
• w5100.h
• w5100.cpp

You can also use the forked and modified library atPatched Ethernet

To fixEthernetLarge library, just copy these following files into theEthernetLarge library directory to overwrite the old files:

• EthernetLarge.h
• EthernetLarge.cpp
• EthernetServer.cpp
• w5100.h
• w5100.cpp

You can also use the forked and modified library atPatched EthernetLarge

To fixEthernet2 library, just copy these following files into theEthernet2 library directory to overwrite the old files:

• Ethernet2.h
• Ethernet2.cpp

To add UDP Multicast support, necessary for theUPnP_Generic library:

• EthernetUdp2.h
• EthernetUdp2.cpp

You can also use the forked and modified library atPatched Ethernet2

5. To fixEthernet3 library, just copy these following files into theEthernet3 library directory to overwrite the old files:

• Ethernet3.h
• Ethernet3.cpp

You can also use the forked and modified library atPatched Ethernet3

To be able to compile and run on nRF52 boards with ENC28J60 using UIPEthernet library, you have to copy these following files into the UIPEthernetutility directory to overwrite the old files:

• UIPEthernet.h
• UIPEthernet.cpp
• Enc28J60Network.h
• Enc28J60Network.cpp

To fixESP32 compile error, just copy the following file into theESP32 cores/esp32 directory (e.g. ./arduino-1.8.19/hardware/espressif/cores/esp32) to overwrite the old file:

• Server.h

To fixESP8266 compile error such as

error: 'class EthernetClass' has no member named 'init'Ethernet.init (USE_THIS_SS_PIN);

just rename the following file in ./arduino-1.8.19/hardware/esp8266com/esp8266/libraries/Ethernet directory

• FromEthernet.h toEthernet_ESP8266.h

Please have a look atESP_WiFiManager Issue 39: Not able to read analog port when using the autoconnect example to have more detailed description and solution of the issue.

• ADC1 controls ADC function for pinsGPIO32-GPIO39
• ADC2 controls ADC function for pinsGPIO0, 2, 4, 12-15, 25-27

Look in fileadc_common.c

In ADC2, there're two locks used for different cases:

1. lock shared with app and Wi-Fi:ESP32:When Wi-Fi using the ADC2, we assume it will never stop, so app checks the lock and returns immediately if failed.ESP32S2:The controller's control over the ADC is determined by the arbiter. There is no need to control by lock.

2. lock shared between tasks:when several tasks sharing the ADC2, we want to guaranteeall the requests will be handled.Since conversions are short (about 31us), app returns the lock very soon,we use a spinlock to stand there waiting to do conversions one by one.

adc2_spinlock should be acquired first, then adc2_wifi_lock or rtc_spinlock.

• In order to useADC2 for other functions, we have toacquire complicated firmware locks and very difficult to do
• So, it's not advisable to useADC2 with WiFi/BlueTooth (BT/BLE).
• UseADC1, and pins GPIO32-GPIO39
• If somehow it's a must to use those pins serviced byADC2 (GPIO0, 2, 4, 12, 13, 14, 15, 25, 26 and 27), use thefix mentioned at the end ofESP_WiFiManager Issue 39: Not able to read analog port when using the autoconnect example to work with ESP32 WiFi/BlueTooth (BT/BLE).

The easiest way is to use

#defineUSE_ETHERNET_WRAPPERtrue

then selectone and only one Ethernet library to use as follows:

• StandardW5x00/W5100S/W6100Ethernet_Generic library is used by default, in the sketch, just be sure to comment out or leave these #defines to be false :

// Only one if the following to be true#defineUSE_UIP_ETHERNETfalse#defineUSE_ETHERNET_PORTENTA_H7false#defineUSE_NATIVE_ETHERNETfalse#defineUSE_QN_ETHERNETfalse#defineUSE_ETHERNET_GENERICfalse#defineUSE_ETHERNET_ESP8266false #defineUSE_ETHERNET_ENCfalse#defineUSE_CUSTOM_ETHERNETfalse

To useW5x00/W5100S/W6100 Ethernet, for example usingEthernet_Generic library

// Only one if the following to be true#defineUSE_UIP_ETHERNETfalse#defineUSE_ETHERNET_PORTENTA_H7false#defineUSE_NATIVE_ETHERNETfalse#defineUSE_QN_ETHERNETfalse#defineUSE_ETHERNET_GENERICtrue#defineUSE_ETHERNET_ESP8266false#defineUSE_ETHERNET_ENCfalse#defineUSE_CUSTOM_ETHERNETfalse

• To useENC28J60 Ethernet, using EthernetENC library (NEW and Better)

// Only one if the following to be true#defineUSE_UIP_ETHERNETfalse#defineUSE_ETHERNET_PORTENTA_H7false#defineUSE_NATIVE_ETHERNETfalse#defineUSE_QN_ETHERNETfalse#defineUSE_ETHERNET_GENERICfalse#defineUSE_ETHERNET_ESP8266false#defineUSE_ETHERNET_ENCtrue#defineUSE_CUSTOM_ETHERNETfalse

• To useENC28J60 Ethernet, using UIPEthernet library:

// Only one if the following to be true#defineUSE_UIP_ETHERNETtrue#defineUSE_ETHERNET_PORTENTA_H7false#defineUSE_NATIVE_ETHERNETfalse#defineUSE_QN_ETHERNETfalse#defineUSE_ETHERNET_GENERICfalse#defineUSE_ETHERNET_ESP8266false #defineUSE_ETHERNET_ENCfalse#defineUSE_CUSTOM_ETHERNETfalse

• To use another Ethernet libraryFor example, EthernetLarge library

// Only one if the following to be true#defineUSE_UIP_ETHERNETfalse#defineUSE_ETHERNET_PORTENTA_H7false#defineUSE_NATIVE_ETHERNETfalse#defineUSE_QN_ETHERNETfalse#defineUSE_ETHERNET_GENERICfalse#defineUSE_ETHERNET_ESP8266false #defineUSE_ETHERNET_ENCfalse#defineUSE_CUSTOM_ETHERNETtrue//Must be placed before #include <EthernetWebServer.h>#include<EthernetLarge.h>...#include<EthernetWebServer.h>

• Only for Teensy 4.1, to useNativeEthernet library

#if defined(__IMXRT1062__)// For Teensy 4.1/4.0  #if defined(ARDUINO_TEENSY41)    #defineBOARD_TYPE"TEENSY 4.1"// Use true for NativeEthernet Library, false if using other Ethernet libraries    #defineUSE_NATIVE_ETHERNETtrue    #defineUSE_QN_ETHERNETfalse  #elif defined(ARDUINO_TEENSY40)    #defineBOARD_TYPE"TEENSY 4.0"  #else    #defineBOARD_TYPE"TEENSY 4.x"  #endif      #elif defined(__MK66FX1M0__)  ....

• Only for Teensy 4.1, to use another Ethernet library, for exampleEthernet_Generic library

#if defined(__IMXRT1062__)// For Teensy 4.1/4.0  #if defined(ARDUINO_TEENSY41)    #defineBOARD_TYPE"TEENSY 4.1"// Use true for NativeEthernet Library, false if using other Ethernet libraries    #defineUSE_NATIVE_ETHERNETfalse    #defineUSE_QN_ETHERNETfalse  #elif defined(ARDUINO_TEENSY40)    #defineBOARD_TYPE"TEENSY 4.0"  #else    #defineBOARD_TYPE"TEENSY 4.x"  #endif      #elif defined(__MK66FX1M0__)  ....  #defineUSE_UIP_ETHERNETfalse// Only one if the following to be true#defineUSE_ETHERNET_GENERICtrue#defineUSE_ETHERNET_ESP8266false#defineUSE_ETHERNET_ENCfalse#defineUSE_CUSTOM_ETHERNETfalse

• Only for Teensy 4.1, to useQNEthernet library

#if ( defined(CORE_TEENSY) && defined(__IMXRT1062__) && defined(ARDUINO_TEENSY41) )// For Teensy 4.1  #defineBOARD_TYPE"TEENSY 4.1"// Use true for NativeEthernet Library, false if using other Ethernet libraries  #defineUSE_NATIVE_ETHERNETfalse  #defineUSE_QN_ETHERNETtrue#else  #error Only Teensy 4.1 supported#endif#defineUSE_ETHERNET_WRAPPERfalse// Use true  for ENC28J60 and UIPEthernet library (https://github.com/UIPEthernet/UIPEthernet)// Use false for W5x00 and Ethernetx library      (https://www.arduino.cc/en/Reference/Ethernet)#defineUSE_UIP_ETHERNETfalse#defineUSE_ETHERNET_GENERICfalse#defineUSE_ETHERNET_ESP8266false #defineUSE_ETHERNET_ENCfalse#defineUSE_CUSTOM_ETHERNETfalse#if USE_NATIVE_ETHERNET  #include"NativeEthernet.h"  #warning Using NativeEthernet lib for Teensy 4.1. Must also use Teensy Packages Patch or error  #defineSHIELD_TYPE"using NativeEthernet"#elif USE_QN_ETHERNET  #include"QNEthernet.h"usingnamespaceqindesign::network;  #warning Using QNEthernet lib for Teensy 4.1. Must also use Teensy Packages Patch or error  #defineSHIELD_TYPE"using QNEthernet"  #endif

• TheEthernet_Shield_W5200, EtherCard, EtherSia libraries are not supported. Don't use unless you know how to modify those libraries.
• Requests to support for any future custom Ethernet library will be ignored.Use at your own risk.

The default CS/SS pin is GPIO4(D2) for ESP8266, GPIO22 for ESP32, 10 for all other boards.

If the default pin is not correct, the easiest way is to select the CS/SS pin (e.g. 22) to use as follows:

// To override the default CS/SS pin. Don't use unless you know exactly which pin to use#defineUSE_THIS_SS_PIN22

To avoid using the default but not-working Ethernet library of ESP8266, rename the Ethernet.h/cpp to Ethernet_ESP8266.h/cpp to avoid library conflict if you're using the Arduino Ethernet library. TheEthernet_Generic, Ethernet2, Ethernet3, EthernetLarge library can be used without conflict.

These pins are tested OK with ESP8266 and W5x00/W5100S/W6100

// For ESP8266// Pin                D0(GPIO16)    D1(GPIO5)    D2(GPIO4)    D3(GPIO0)    D4(GPIO2)    D8// Ethernet           0                 X            X            X            X        0// Ethernet2          X                 X            X            X            X        0// Ethernet3          X                 X            X            X            X        0// EthernetLarge      X                 X            X            X            X        0// Ethernet_ESP8266   0                 0            0            0            0        0// D2 is safe to used for Ethernet, Ethernet2, Ethernet3, EthernetLarge libs// Must use library patch for Ethernet, EthernetLarge libraries//Ethernet.setCsPin (USE_THIS_SS_PIN);Ethernet.init (USE_THIS_SS_PIN);

• ForEthernet_Generic library only, simply use as follows to have large buffer similar to EthernetLarge library

#defineETHERNET_LARGE_BUFFERS

• ForEthernet3 library only, use as follows

// Use  MAX_SOCK_NUM = 4 for 4K, 2 for 8K, 1 for 16K RX/TX buffer#ifndef ETHERNET3_MAX_SOCK_NUM  #defineETHERNET3_MAX_SOCK_NUM4#endifEthernet.setCsPin (USE_THIS_SS_PIN);Ethernet.init (ETHERNET3_MAX_SOCK_NUM);

sendContent_P() and send_P() buffer size is set default at 4 Kbytes, and minimum is 256 bytes. If you need to change, just add a definition, e.g.:

#defineSENDCONTENT_P_BUFFER_SZ2048

Note that the buffer size must be larger than 256 bytes. SeeSending GZIP HTML ~ 120kb+ (suggested enhancement).

• ForEthernet_Generic library only, to useSPI2 for ESP32

#defineUSING_SPI2true

Pin to use forSPI2

MOSI:  13MISO:  12SCK:   14SS:    5

• ForEthernet_Generic library only, to useSPI1 for RP2040 usingarduino-pico core orArduinoCore-mbed

#defineUSING_SPI2true

Pin to use forSPI1

MOSI:  15MISO:  12SCK:   14SS:    13

• ForEthernet_Generic library only, to useSPI1/SPI2 for Teensy 4.x

#include<SPI.h>// For RPI Pico using Mbed RP2040 core#if (USING_SPI2)  #defineUSING_CUSTOM_SPItrue// Teensy4.1// SCK1: 27,  MOSI1: 26, MISO1:  1, SS1/CS1:  0 for SPI1// SCK2: 45,  MOSI2: 43, MISO2: 32, SS2/CS2: 44 for SPI2// Teensy4.0, in the back, untested// SCK1: 27,  MOSI1: 26, MISO1: 1, SS1/CS1: 0 for SPI1  #defineCUR_PIN_MISO1  #defineCUR_PIN_MOSI26  #defineCUR_PIN_SCK27  #defineCUR_PIN_SS0  #defineSPI_NEW_INITIALIZEDtrue// SPI1  SPIClassSPI_New((uintptr_t)&IMXRT_LPSPI3_S, (uintptr_t)&SPIClass::spiclass_lpspi3_hardware);// SPI2//SPIClass SPI_New((uintptr_t)&IMXRT_LPSPI1_S, (uintptr_t)&SPIClass::spiclass_lpspi1_hardware);    #warning Using USE_THIS_SS_PIN = CUR_PIN_SS = 38  #if defined(USE_THIS_SS_PIN)    #undef USE_THIS_SS_PIN  #endif     #defineUSE_THIS_SS_PIN       CUR_PIN_SS#endif

Pin to use forSPI1

MOSI:  26MISO:   1SCK:   27SS:     0

Pin to use forSPI2

MOSI:  43MISO:  32SCK:   45SS:    44

With some Arduino IDE versions, such asv1.8.19, upload directly via USB to some boards, such asCuriosity_AVR128DA48 orCuriosity_AVR128DB48 can't be done without unknown-to-me fix. We'll get the following error when uploading

avrdude: Version 6.3-20201216     Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/     Copyright (c) 2007-2014 Joerg Wunsch     System wide configuration file is "/home/kh/.arduino15/packages/DxCore/hardware/megaavr/1.4.10/avrdude.conf"     User configuration file is "/home/kh/.avrduderc"     User configuration file does not exist or is not a regular file, skipping     Using Port                    : usb     Using Programmer              : curiosity_updiavrdude: usbdev_open(): Found nEDBG CMSIS-DAP, serno: MCHP3280041800002682avrdude: usbdev_open(): WARNING: failed to set configuration 1: Device or resource busyavrdude: Found CMSIS-DAP compliant device, using EDBG protocolavrdude: usbdev_send(): wrote -5 out of 912 bytes, err = Input/output erroravrdude: jtag3_edbg_prepare(): failed to send command to serial portavrdude done.  Thank you.the selected serial port  does not exist or your board is not connected

We can use drag-and-drop method todrag-and-drop the compiledhex file toCURIOSITY virtual drive.

Ifsuccess, The LED blinksslowly for 2 sec. The LED will blinksrapidly for 2 sec iffailure

For example, to runChange_Interval example, use Arduino IDE to compile, and get theChange_Interval.ino.hex file. For Ubuntu Linux, the file is stored in directory/tmp/arduino_build_xxxxxx

After drag-and-drop theChange_Interval.ino.hex intoCURIOSITY virtual drive, the code will run immediately if successfully loaded (LED blinksslowly)

This is example to demo how to connectW5x00/W5100S/W6100 to CuriosityAVR128DA48 orAVR128DB48

EthernetInit();

EthernetWebServerserver(80);

Creates theEthernetWebServer class object.

Parameters:

host port number:int port (default is the standard HTTP port 80)

Starting the server

voidbegin();

Handling incoming client requests

voidhandleClient();

Disabling the server

voidclose();voidstop();

Both methods function the same

Client request handlers

voidon();voidaddHandler();voidonNotFound();voidonFileUpload();

Example:

server.on("/", handlerFunction);server.onNotFound(handlerFunction);// called when handler is not assignedserver.onFileUpload(handlerFunction);// handle file uploads

Sending responses to the client

voidsend();voidsend_P();

Parameters:

code - HTTP response code, can be200 or404, etc.

content_type - HTTP content type, like"text/plain" or"image/png", etc.

content - actual content body

Getting information about request arguments

const String &arg();const String &argName();intargs();boolhasArg();

Function usage:

arg - get request argument value, usearg("plain") to get POST body

argName - get request argument name

args - get arguments count

hasArg - check if argument exist

Getting information about request headers

const String &header();const String &headerName();const String &hostHeader();intheaders();boolhasHeader();

Function usage:

header - get request header value

headerName - get request header name

hostHeader - get request host header if available, else empty string

headers - get header count

hasHeader - check if header exist

Authentication

boolauthenticate();voidrequestAuthentication();

Function usage:

authenticate - server authentication, returns true if client is authenticated else false

requestAuthentication - sends authentication failure response to the client

Example Usage:

if(!server.authenticate(username, password)){  server.requestAuthentication();}

const String &uri();// get the current uriHTTPMethodmethod();// get the current methodWiFiClientclient();// get the current clientHTTPUpload &upload();// get the current uploadvoidsetContentLength();// set content lengthvoidsendHeader();// send HTTP headervoidsendContent();// send contentvoidsendContent_P();voidcollectHeaders();// set the request headers to collectvoidserveStatic();size_tstreamFile();

1. AdvancedWebServer
2. SimpleWebServer_NativeEthernet
3. HelloServer
4. HelloServer2
5. HttpBasicAuth
6. MQTTClient_Auth
7. MQTTClient_Basic
8. MQTT_ThingStream
9. PostServer
10. SimpleAuthentication
11. UdpNTPClient
12. UdpSendReceive
13. WebClient
14. WebClient_ESP
15. WebClientRepeating
16. WebClientRepeating_ESP
17. WebServer
18. WebServer_NativeEthernet
19. ESP32_FS_EthernetWebServer.
20. FS_EthernetWebServer.
21. serveStatic.
22. serveStaticLoadFile.
23. AdvancedWebServer_Ptr.New
24. multiFileProject.New
25. EthernetWebServer_BigData.New

1. BasicAuthGet
2. CustomHeader
3. DweetGet
4. DweetPost
5. HueBlink
6. node_test_server
7. PostWithHeaders
8. SimpleDelete
9. SimpleGet
10. SimpleHTTPExample
11. SimplePost
12. SimplePut
13. SimpleWebSocket

1. AdvancedWebServer
2. MQTTClient_Auth
3. MQTTClient_Basic
4. MQTT_ThingStream

1. WiFi_Ethernet_Complex_ESP32
2. WiFi_Ethernet_Complex_ESP8266

1. AdvancedWebServer_ESP32_SPI2New

1. AdvancedWebServer_RP2040_SPI1New
2. AdvancedWebServer_Teensy4x_SPI1New