A bootloader makes it possible to update a product’s firmware in the field. Common communication interfaces like UART, I 2 C, SPI or USB can be used to update the firmware, which typically involves a ...
Most external Bluetooth pucks are transmit-only; i.e., they take audio input via cables and pass it along wirelessly. The $40 Monoprice Bluetooth 5 Long Range Transmitter and Receiver does that, but ...