ITEM NAME:10pcs I2C Serial Interface Adapter Plate LCD Backpack Module E7W7 10pcs I2C Serial Interface Adapter Plate LCD Backpack Module E7W7 PCB Color: Black Supply Voltage Range: 2.5 V to 6 V Dimensions: 41.5 mm x 19 mm x 15.3 mm I2C Interface Address: 0 x 20 to 0 x 27 Applies to Arduino The I2C LCD backpack is a small PCB board that can be soldered onto the back of LCD allowing it to be controlled directly from a microcontroller using an I2C interface bus. This LCD backpack is compatible with several LCDs that use standard HD44780 compatible interface such as LCD1601, LCD1602, LCD1604 and many others. Package Contents:10 x LCD1602 LCD adapter board Note: Light shooting 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.