LILYGO® TTGO Expression Panel Blue LED Display Board For ESP32 ESP8266 For Arduino Mircobit

Description: The expression panel contains a total of 128 aligned LEDs. The color is blue. By receiving data from the motherboard, you can control the display of numbers, letters, or symbols. There are I2C pins on the connector that can be connected. Pin definition: The expression panel module has 4 pins. Their functions are as follows No. Pin Function 1 SCK Clock 2 SDA Data 3 GND Ground 4 5V Power supply Operating voltage: 5V DC Communication Mode: I2C More product information,go to: https://github.com/LilyGO/TTGO_LED_Matrix Package included: 1 x Expression Panel Blue LED Display Module 4 x Pin line