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 ...

The jumper J1 feeds 5 V to the middle pin DQ through a 10K resistor. Similarly, pin notation for the infrared receiver module is OUT(D2)-GND-5V. I think that we can use the type TSOP1838/AH1838/VS1838 ...

Adding a photoresistor (light sensor) and a thermistor (temperature sensor) and connecting them to a programmed Arduino gave me a gadget that monitors the environment of a single plant. You can ...