Ibridge V2.0

Introduction

IBridge is a 4X4 key-pad shield with a 5110 Graphic LCD interface.You can plug it on Arduino boards directly, and you can get the small development platform with keypad input and Graphic LCD display.

Specification

PCB size	68.6mm X 53.3mm X 1.6mm
Power supply	5V
Operation Level	Digital 5/3.3V DC

Electrical Characteristics

Parameter	Min.	Typical	Max.	Unit
Power supply	4.5	5	5.5	VDC
Input voltage VinH(Target voltage=3.3V)	3	3.3	3.6	V
Input voltage VinH(Target voltage=5V)	4.5	5	5.5	V
Input voltage VinL	-0.3	0	0.5	V
Current Consumption	-	20	40	mA

Hardware

Zone 1: Set the voltage level of arduino board.

Zone 2: Interface for LCD5110

Zone 3: 16 buttons in scan keyboard