The WT5105-M1-SMD is an industrial-grade, Bluetooth Low Energy (BLE) module that uses single wire debug (SWD) and UART communications. The module measures 18.5x9.1x2mm and is designed to be surface-mounted onto a printed circuit board (PCB). It is manufactured by Wireless-Tag and enables the development of smart home hardware powered by BLE for various applications. It has an integrated PCB antenna, 2.4GHz RF tranceiver, power amplifier, 32bit MCU, Crystals, Capacitor, ECAL Matching, 32kB Flash ROM and 8k Enhanced EEPROM. It utilizes the nRF52832 for an integrated BLE and IEEE 802.15.4 protocol stack and is thus capable of supporting up to up to 20 connection concurrent connections.