Movatterモバイル変換


[0]ホーム

URL:


Sorry, we no longer support your browser
Please upgrade toMicrosoft Edge,Google Chrome, orFirefox. Learn more about ourbrowser support.
Skip to main content

Stack Exchange Network

Stack Exchange network consists of 183 Q&A communities includingStack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange
Loading…
Arduino

Questions tagged [rtc]

Ask Question

Real-Time Clock. Keeps track of current date/time. Some have batteries like the DS3231, and the DS3231 also has programmable alarms that can interrupt an Arduino.

188 questions
Filter by
Sorted by
Tagged with
-1votes
1answer
148views

The RTC module can output the hours as 165, and the minutes as 165. This is some random number that is different every time. Everything works fine, but at random times I get this. Maybe once every ...
Rodney's user avatar
2votes
1answer
209views

I have been working on this program for a few weeks now and finally got it somewhere near finishing. It uploads and seems to do what I want it to do on a R3 board but will not run on my R4 Wifi board ...
user115219's user avatar
1vote
1answer
209views

I am building a small art project to display my current age with an accuracy of 1/100th of a second. I am using a XIAO SAMD21, a DS3231 RTC, and a 128x32 OLED screen. Here is what it looks like right ...
Mir's user avatar
  • 113
1vote
0answers
155views

I am a PHP web programmer, but I am a beginner studying Arduino. I would like to inquire about a problem with the following function that I am creating while looking for various references. (This ...
2votes
1answer
254views

I have a problem with an RTC: it doesn't work correctly. When I try to read date or time, I only see the characters "àààààààà" or or the program is blocked.#include <Wire.h>#include &...
Qmails's user avatar
-1votes
1answer
90views

I am a beginner to Ardunino UNOThis is my first program to light up an LED strip#include <Adafruit_NeoPixel.h>#include <RTCZero.h>#define PIN 6 #define NUMPIXELS 60 ...
suni's user avatar
  • 101
1vote
2answers
5kviews

I want to use an external 32kHz crystal for RTC with ESP32 S3, but I didn't see any example or tutorial for Arduino IDE, Even when I asked ChatGPT, it gave me some example but the code gave library ...
mehmet's user avatar
2votes
3answers
3kviews

I am trying to make an LED clock using an DS3231 to keep track of time, but for some reason, it's not keeping time when the Arduino is turned off.I tried to disconnect the clock from a power source ...
Win Win Tjong's user avatar
2votes
1answer
178views

I have an alarm for "tea time", "lunch time" and "tea time". It works well at times but occasionally it gets stuck on the alarm not resetting, other times it does not ...
Nic Kemp's user avatar
5votes
0answers
2kviews

According to the manufacturer's link below, the default RTC timekeeping in the ESP32 is supposedly based on Internal 150 kHz RC oscillator.Apparently, there is another option called Internal 8.5 MHz ...
Randy's user avatar
1vote
1answer
1kviews

I am using a DS1302 RTC module with an Arduino Mega 2560 Rev 3. I follow steps on this website since I have no experience with RTC module before. Here are the outputs I am getting.17:15:21.835 -> ...
Leo Liang's user avatar
1vote
0answers
292views

I'm using the MKR NB 1500 for server sending, an ENV shield for measuring the environment, and an external lithium battery to power the circuit. The internal RTC and WDT on the NB 1500 are used.The ...
5TableLegs's user avatar
0votes
2answers
357views

I need to synchronize two separate circuit boards working with Arduino Nano. The need is to activate one relay using Arduino-1 after 45 minutes, and another relay using Arduino-2 after 45.36 seconds. ...
1vote
0answers
77views

I am working in an Arduino project in visual studio. I need to get and set time to a RTC clock. That's why I am adding a ds3231 header file in my project from GitHub. When I want to build "it's ...
0votes
1answer
390views

I have an I2C Real Time Clock, DS3231 RTC module , and I just want something like Unix Time.I'm using the uRTCLib, looking at the class methodsbut dont see anything like that. I'm thinking there ...
j0h's user avatar
  • 902

153050per page
1
2345
13

Hot Network Questions

more hot questions
Newest rtc questions feed

[8]ページ先頭

©2009-2025 Movatter.jp