The Arduino, Bluetooth module (check your specs, some HC-05, and HC-06 may come on a breakout board expecting 5V), and USB Host shield all run off of 3.3V, but devices you want to plug into the ...

For those written in the last week, our most popular stories on the site cover Arduino announcing a single-pair Ethernet adapter board for its Uno R4, warnings from the Electronica CEOs Forum, ...

Posted in Arduino Hacks, Microcontrollers Tagged adc, arduino, atmega, attiny, battery, low battery, power monitor, voltage Post navigation ← Homebrew Gel Fuel Keeps The Steam Coming, Legally ...