This project is a small automatic cooling system for home theater rack. It supports 2 temperature sensors for different zones in the rack and 2 12V PWM fans (standard for PC case cooling).
There is a power switch connector for a switch mounted on the casing (will be designed and 3D printed later). A reset button is provided mostly for reprogramming purpose. There are 4 buttons for setting up temp...
This is the analogue part of the circuite for my Arduino battery charger project.
The software can be found at https://github.com/GarethDaviesLondon/PWM-Charge-Controller-Arduino.
The pin outs refer to an Arduino Nano.
The key to this project was to make the Nano go to sleep when the sun wasn't shining.
Night Light LED dimmer documentation and code are available at http://jerrykomor.com/Stuff/Arduino/Night Light.
I made this as alternative to bet site night light. I'm using a ribbon type LED trip thats stuck to the mack of a head board which hids a bit between the carvings on head board and the control module is basically a PWM controlled with 3 buttons: Up, Down, and On/Of switching and IRL540...