Introduction - If you have any usage issues, please Google them yourself
Based on the I2C bus ZLG7290 with the AVR MCU Interface Technology and Writing in the introduction ZLG7290I2c interface keyboard and LED driver features, working principle and l2c transmission protocol of the chip with I2C serial interface, can drive a total of eight negative-class digital tube or 64 independent LED and 64 keys, AVR Singlechip have more superior performance. ZLG7290I2C interface gives the keyboard and the LED drive AT90S2313 MCU with ARV interface technology and its application examples