There was a time when we would start our electronic projects with integrated circuits ... Bluetooth audio chip with minimal datasheet, and making his own take on an off-the-shelf Bluetooth audio ...

He found a pretty inexpensive Bluetooth audio amplifier on AliExpress ... He noticed the board amp module was missing a battery protection circuit even though there was space on the board laid ...

These include nine general purpose I/O ports, two 8-bit analogue input lines and three PCM audio channels. The module is pin and format compatible with EZURiO 802.11 WLAN modules, allowing developers ...