With this compact yet powerful ESP32 wearable development board, you can take your costumes and wearable technology to the next level, including Smartphone control. The board has all the features of an ESP32 including WiFi and Bluetooth, but on a 56mm diameter board that can be sewn onto fabric or similar material using conductive thread (sold separately). There is a provision to connect a rechargeable battery for portable applications, and programming is performed easily via the onboard micro USB port with the Arduino IDE through the ESP32 add-on.