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Arduino and PCF8574 IO Expander – Binary Counter and I2C Bus Read / Write

Arduino and IO Expander – Binary Counter and Bus Read / Write

I2C.png

Maybe sometimes we want to share the workload of one Arduino with another. Or maybe we want more digital or analog pins. Inter-Integrated Circuit or (pronounced.

Building a Four Channel SolidState Relay: the PCB

For an Arduino project I needed to switch 4 mains devices. I am always deliberating wether to use a mechanical relay or a solidstate relay. Solidstate relays used to.

Turn your Uno into a VGA output device!

Gammon Forum : Electronics : Microprocessors : Arduino Uno output to VGA monitor

Image titled Anodize Aluminum Step 1

How to Anodize Aluminum. Anodizing uses acid to create a corrosion and wear resistant layer on top of a metal. The process of anodizing changes the crystal structure near the surface of substances, like aluminum alloy, and allows you to.