Item Type: Module Input Type: Digital Signal Interface Terminal: XH2.54x4 Pin Definition: G- Ground V-Power D (SDA) - Serial Data C (SCL) - Serial Clock When there is a conflict between the addresses of multiple I2C devices being mounted, the I2C address can be set through A0, A1, and A2 on the connection board. The module default address is 0X70. Package List Module x 1 1When there is a conflict between the addresses of multiple I2C devices being mounted, the I2C address can be set through A0, A1, and A2 on the connection board. The module default address is 0X70. 2HW-572 I2C LED dot matrix module, easy to operate, anti-aging, and long service life. 3Precise cuts and interfaces ensure perfect fit, suitable for mounting positions and easy to install. 4The product uses high quality materials to effectively avoid corrosion and wear and durable use. 5Adopting professional chipset, to ensure superior performance in the system.