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Electrical Engineering

Questions tagged [arduino]

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3answers
93views

newbie here trying to learn and create an electronics project for my uni (Comp E)My goal here is to create a DIY infrared sensor using photodiode and IR transmitter, and read the signal through a MCU ...
0votes
0answers
51views

I’m trying to digitally control the output voltage of an SZ-08 buck-boost converter by replacing its onboard W204 (3296) CV trimmer with an RP2040-generated PWM signal filtered through an RC network ...
-3votes
0answers
22views

I get error when i try to switch from sim1 to sim2 via "AT+SWITCHSIM=1" command @ SIM7672SAHow can I fix this, or does the firmware not support dual SIM despite the hardware doing so?
0votes
0answers
27views

With respect to an Arduino UNO. Can I operate a 5 volt RC servo that draws between 2.1 to 2.7 amps?
Tony Tee's user avatar
-1votes
1answer
36views

I am trying to use the talkie library on Arduino Uno to output to a speaker. The talkie output is by default a PWM signal. I tested it with a piezo speaker and it works but it is weak. How can I ...
Finn Hassing's user avatar
0votes
1answer
116views

I have a PCB with UPD8872 CCD sensor that I took from an old scanner. I managed to solder the pins of the board to Arduino compatible wires and programmed the Arduino and, also, wrote desktop app that ...
1vote
1answer
103views

This is a question following this one: What is the best way to stack another switch?I want to stack an electronic switch over a mechanical switch, and have it driven by a microcontroller (arduino ...
0votes
0answers
62views

I'm doing a senior design project for my Computer Engineering bachelor's degree and I'm running into issues getting consistant movement with my two NEMA 17 Stepper motors.I'm in the process of making ...
2votes
1answer
100views

I want to use a linear CCD-sensor for my project and I bought this old tablet scanner from 2004 - Genius ColorPage-HR7XE. I disassembled all the parts and took out the PCB with CCD-scanner. But I didn'...
0votes
1answer
80views

I'm looking at a tutorial( https://www.teamxnl.com/how-to-flash-an-attiny-25-45-or-85-with-arduino/ )and I'm confused about one of the pin connections illustrated.I've read that, for the 85, Pin1/...
0votes
0answers
50views

I am VERY new to electronics, but I love this world. My first project is to read CAN bus data from my 2008 Ford Taurus. I got a MCP2515 CAN Bus Module with a TJA1050 Receiver, and an Arduino.I hooked ...
GinTora's user avatar
3votes
2answers
176views

I'm currently using a MOSFET IRFZ44N to feed a motor using a PWM signal that comes from my Arduino Uno board. These are the connections that i have made:Being the 50 ohms resistance the equivalent of ...
0votes
2answers
91views

I am having an issue with a servo motor controlled by a NodeMCU and switched via an N-MOSFET (IRLB8721) on a breadboard. The servo is powered by 8.4V (from 12V/5A PSU via step-down). MOSFET gate ...
1vote
0answers
69views

I am currently doing a PID controller project to try and control a heating pad. I was following this tutorial and everything seems to work except for the heater control portion of the project. https://...
-1votes
2answers
86views

So first of all, I don't have a background in electrical engineering, I got handed a project where having some automation would save so much of my time so now I am learning electronics from scratch.I ...

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