It only applies to certain microcontrollers, but he provides example Arduino code showing how handy this can be for battery-powered projects. The usual way to measure VCC is simple, but has ...

Makers, hobbyists and Arduino enthusiasts searching ... more about the project which is powered by a 9V battery. The finish spirit level and measure features an ultrasonic sensor for measuring ...

Arduino developers ... Arduino rechargeable battery project and see it in action. Together with a 500 mA output and an on-board fuel gauge IC thats allows users to measure of battery voltage ...

So, what do you do when your Arduino project needs to operate in a remote area or as a portable device? There are LiPo battery shields available, and although they may work well, recharging ...