Blink LED is a Hello World! application for micro-controllers. If you manage to get it running, you can assume that you are all setup and ready for further developments on your board. In this blog item I will cover how to do that on a STM32F407 Discovery board.
After the inside of the mancave was finished it was time to create the power distribution / fuse box that connects all the power wires and lights.
18650 batteries are known for it's high energy density, but this comes at a price. In order to protect the battery from overcharging or over-discharging a number of ICs need to be used. Luckily these charge and protector circuit boards are readily available for sale in all shapes and sizes. In this blog post I am going to build a charger that uses such a circuit.
Not only the charger can use protection circuitry, but also the battery itself. When buying the batteries make sure that they are protected. I have bought mine in a Chinese online webshop.