A number of links for Arduno:
Control High Voltage Devices – Arduino Relay TutorialAutomatic Pool Fill ControleTape Liquid Level Sensor on MCP3008How to control your TV with an Arduino!
Moving from prototype to permanent:
How do I go from arduino breadboard to creating a real deviceFrom Schematic to Veroboard
Coding Information
How do you reset millis() ? Blink Without Delay Arduino Timers and Counters Arduino Based Countdown Timer
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