1602 Dot Matrix LCD Display Module, with I2C serial interface, blue and grey background color. Package inclues 3 resistors, 1 potentiometer, 20 pcs of male to male jumper wire and 20 pcs of male to female jumper wire. Power supply: 5v; I2C address: 0x27; wiring method: GND—GND, VCC—VCC, SDA—A4, SCL—A5. Compatible with most mainstream development boards. Widely used in: school electronics projects, smart buildings, maker DIY projects, etc. Modules can display letters, characters, numbers, and low-resolution goofy graphics.