SparkFun
BlueSMiRF v2 - Headers, Wireless Serial UART Link, ESP32-PICO-MINI-02 Module with Built-in PCB Antenna, Input Voltage: 3.3V to 5V, Board Dimensions:
The SparkFun BlueSMiRF v2 with headers uses wireless to transform your serial connection into a wireless link. BlueSMiRF v2 has a multitude of exciting improvements over the original. The BlueSMiRF pinout is the same as previous Bluetooth Mates and USB-to-serial converters (i.e., FTDI, CH340, etc.),...
$23.50