DFRobot FireBeetle series is the low power consumption microcontroller intentionally designed for Internet of Things (IoT) projects. The small size and high performance makes FireBeetle become idea solution for IoT low power consumption projects. We have FireBeetle ESP32 IoT Microcontroller (Supports Wi-Fi & Bluetooth) and FireBeetle ESP8266 IoT Microcontroller (Supports Wi-Fi), check them out.