Then, an Arduino board might be exactly what you're looking for. This open-source hardware platform comes in a multitude of versions, from the classic Uno to ... a slight input voltage difference ...

“Supplino is a Quick & Dirty PSU (Power Supply Unit) made with some widely available breakout boards, an Arduino Nano ... the output voltage. Regarding the power input, we prefer feeding ...

Because some hardware setup is required to build up a functioning radio, an Arduino can be used to supply the voltage and control the radio chip ... Here, Arduino’s (Uno R3) A4 (SDA) and A5 (SCK/SCL) ...

To make things easier for the adoption of this new Arduino product, the Arduino 101 is pin compatible with Arduino Uno R3 shields ... will provide a varied voltage input to the analog 0 pin ...