Embedded

ESD Lab, Episode 1: Remote Temperature Monitoring with Arduino Uno R4 WiFi and MQTT

This video demonstrates how to set up a remote temperature monitoring system using an Arduino Uno R4 WiFi, an LM35 temperature sensor, and the MQTT protocol. The system captures ambient temperature ...
Circuit Digest

5 Hidden Features of the Arduino UNO R3 You Probably Didn’t Know

Connect your UNO R3 to your computer and configure the ATmega328P's ADC to read its internal temperature channel. Then print ...
EDN

Fan Speed Controlled by Temperature and Arduino

I made this project because I wanted a way to automatically control the speed of a DC fan according to the temperature read by a LM35 sensor. I had a few problems with the PWM part mainly because the ...
EDN

Single-channel power supply monitor with remote temperature sense, Part 1

To make a remote temperature sensor with the LTC2970, run two different currents (ILOW and IHIGH) through the transistor and measure VBE at both currents (VBE_LOW and VBE_HIGH). The difference between ...