Portable-Akku Powerpack für Raspberry Pi price_>30€ Unlike the also popular TLC5940

Unlike the also popular TLC5940 the PCA9685 brings its own clock generator with it

for example

Compact design and large capacity: this 8-relay module can switch high currents up to 5A

you can get even more sound out of it and

Portable-Akku Powerpack für Raspberry Pi price_>30€ Unlike the also popular TLC5940The AZ Delivery Portable Battery Powerback was specially developed for the Raspberry Pi 3 Model B so that the master board can work offline for up to 9 hours. The module integrates a Li ion battery charger IC, a power management chip. And it is designed in strict accordance with the size of the HAT Raspberry Pi international expansion board, using only simple copper clips to install Raspberry Pi multilayer boards. Specifications: Battery capacity: