In day-to-day life, there are financial concerns that we all have to juggle. Groceries, childcare, bills, insurance, and taxes are just some of the money matters that make being an adult such a ...

Reader [john] finished up his home power monitor over the holiday weekend. It uses a pair of current transducers clamped onto the mains. These output 0-3V and are read by the Arduino’s ADC. The ...

[Trent M. Wyatt]’s CPUVolt library provides a fast way to measure voltage using no external components, and no I/O pin. It only applies to certain microcontrollers, but he provides example Arduino ...