Color custom10000 Brand GDW Model LY240128A Quantity 1 Piece Material PCB English Manual / Spec Yes Other Features Voltage range: 3.3V~5V; The open-source Arduino environment makes it easy to write code and upload it to the i/o board. It runs on Windows Mac OS X and Linux. The environment is written in Java and based on Processing avr-gcc and other open source software. Interface information is as follows: 1-VSS 2-VCC power supply 3-V0 contrast adjustment The 4-RS instruction / data control 5-RW read / write control 6-E enable 7~14 D0~D7 data 15-A LED backlight 16-K backlight cathode Packing List 1 x 4.9" LCD Blue Screen LCD