SystemsThe ESP32-S2-MINI-1U with WiFi 802.11b/g/n Transceiver Module 2.412GHz ~ 2.484GHz Antenna Not Included Surface Mount is a low power, high performance Wi-Fi and Bluetooth combo chip designed by Espressif Systems. It is designed for single-chip applications that require ultra-low power, extended range, and fast connection time. This chip also supports ultra-low power sleep modes and high performance following wake up. It supports Wi-Fi Direct, Bluetooth LE, 802.11b/g/n transceiver, RF power amplifier, PLL, LNA, true RMS power detector and filter, PA, TC, and MAC. The built-in antenna is not included with the module, and must be purchased separately. This versatile product is great for IoT, smart home, smart grid, and medical applications.