1. Made of high-quality materials with guaranteed quality and long service life. 2. Good brightness display effect and high reliability. 3. The module is controlled through the I2C interface and can have up to 8 lattice points, all sharing the same two I2C lines. 4. An 8x8 dot matrix display system that is easy to install, connect, and expand. 5. These dot matrices are equipped with HT16K33 I2C LED drivers, which are simple to use and suitable for various LED applications. They can communicate with most microcontrollers through the I2C interface. Product Type: Display Output Driver: HT16K33 Interface: I2C interface LED dot matrix: 8x8 Specification:A:Yellow Light Color: As Shown Material: PCB Package Contents: 1 x 8x8 LED Matrix Module 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.