Most of us are familiar with the Arduino Uno, a starting place for electronics projects since 2010. But what if the Arduino Uno was released in 1980? You’d probably get something like ...

The build is clear-cut: an Arduino Uno clone for a brain ... After toying with a few options, [peterquinn] is using a 9V, 2A power supply that works just fine. For now, he hopes the auto-sprayer ...

When comparing the Raspberry Pi and Arduino ... but the more popular ones use 9V. In contrast, you can't connect most ...