The ESP-32-based M5Stick-C is a wee, super portable, open-source IoT development board, like a fun-sized version of the M5Stack. Jam-packed with a Wi-Fi & Bluetooth® powered ESP32, USB interface, Li-Poly battery and charge circuitry, 0.96" color TFT display, various sensors (IR transmitter, microphone, 6-DoF IMU sensor) all integrated inside, buttons, and more! You can plug Grove sensors into one end, or use the 0.1" header sockets on the other, to connect additional sensors or actuators. It's perfect for making ultra-small IoT projects or wearables. https://elecena.pl/product/17502381/m5stickc-plus-iot-development-kit-watch-accessories 2021-04-07 https://elecena.pl/product/17502381/m5stickc-plus-iot-development-kit-watch-accessories 2022-01-15