With ESP32-S3-/ESP32-C6- motherboard, you can easily control the lights of devices, and DIY a smart with simple processing Interface compatible with most boards Universal adapter board, specific control needs to be controlled by the main control board communication can be achieved with various main control boards under the ESP32 series Small size Name: expansion board (The product appearance and printed words depending on the batch, but this does not affect use) Colour:Blue Material:PCB Package Contents: 1 x Expansion Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.