DFRobot, Arduino Compatible Kit

The DFRobot FireBeetle 2 ESP32-E, specially designed for IoT, is an ESP-WROOM-32E-based main controller board with dual-core chips. It supports Wi-Fi and Bluetooth dual-mode communication and features a small size, ultra-low power consumption, on-board charging circuit, and easy-to-use interface, which can be conveniently used for smart home IoT, industrial IoT applications, and wearable devices, and so on. You can easily create your own IoT smart home system when connecting it with an IoT platform like IFTTT. FireBeetle 2 ESP32-E supports Arduino programming and will support Scratch graphical programming and MicroPython programming very soon. Besides, the stamp hole design makes it able to be easily embedded in your PCB, greatly saving your costs and time to build and test a prototype.

ESP32 Dual-core low power main controller, 10uA power consumption
WiFi+Bluetooth 4.0 dual-mode module
GDI display Port, easy to connect
On-board charging circuit and PH2.0 lithium battery interfaced