Based in Wuhan, Central China Hubei Province, Lilly Electronics is engaged in fabrication, sales and R&D of consumer electronics maninly in the industry of Laser, IC and LED! You are welcome to visit us for culture exchange and mutrual business development and progress.
Product Description:
There are only 20 IO interface for Arduino 328 system.
the former 1602 lcd display board need 7 IO interface, but this one need only 5 IO. you can save two IO for other sensor or SD card
specification:
1. voltage: 5v
2. I2C protocal
3. back light, contrast can be adjusted
4. 4 wires output
