MCP23017 1602/2004/12864 LCD Expander 5V IIC/I2C Serial Interface Display Module

Description

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1.
1602 LCD Adapter
Specification:
This is another great IIC/I2C/TWI/SPI Serial Interface. As the pin resources of Arduino controller is limited, your project may be not able to use normal LCD shield after connected with a certain quantity of sensors or SD card. However, with this I2C interface module, you will be able to realize data display via only 2 wires. If you already has I2C devices in your project, this LCD module actually cost no more resources at all. It is fantastic for Arduino based project.
I2C Address: 0X20~0X27 (the original address is 0X20,you can change it yourself)
Supply voltage: 5V
the backlight and contrast is adjusted by potentiometer
Come with 2 IIC interface, which can be connected by Dupont Line or IIC dedicated cable
Compatible for 1602 LCD 2004 LCD
Shipping included:
1PCS*IIC I2C Adapter Serial Interface Board Module 5v Arduino 1602 2004 LCD
2.
MCP23017
1602
LCD Shield
Description:
This new 1602 shield makes it easy to use a 16x2 Character LCD. 1602 LCD do require quite a few digital pins, That's almost half of the pins available on a classic Arduino!
we wanted to make it easier for people to get these LCD into their projects so we devised a shield that lets you control a 16x2 Character LCD, up to 3 backlight pins AND 5 keypad pins using only the two I2C pins on the Arduino! The best part is you don't really lose those two pins either, since you can stick i2c-based sensors, RTCs, etc and have them share the I2C bus. This is a super slick way to add a display without all the wiring hassle.
This shield is perfect for when you want to build a stand-alone project with its own user interface. Five-way button allows basic control without having to attach a bulky computer.
The shield is designed for 'classic' Arduinos such as the Uno, Duemilanove, Diecimilla, etc. It uses the I2C pins at Analog 4 and Analog 5. It will also work perfectly with Arduino Mega R3's which have the extra SDA/SCL I2C pins broken out. Earlier Mega's have the I2C pins in a different location and will require you to solder two wires from the I2C pins on the shield and plug them into the different I2C locations at Digital 20 & 21.
Package included:
1 * Brightness Adjustable 1602 LCD Shiled IIC MCP23017 5 keypad For Arduino UNO R3
3. MCP23017 Expander
Module
description
：
This is a brand-new design.
Uses MCP23017 chip, it is compatible with 1602 and 12864 liquid crystal screens, through this module is switched, use I2C communication, only need two MCU I/Os to be able to realize the liquid crystal to drive the display.
The potentiometer on the module can achieve contrast adjustment. You can also unplug the jump cap to turn off the backlight or adjust the brightness through PWM. We provide wiring diagram and arduino sample code, isn't it great!
Supply voltage: 5V
the backlight and contrast is adjusted by potentiometer
Compatible for 1602 LCD 2004 LCD 12864LCD
Package Include:
1* Arduino 5V IIC/I2C Serial Interface MCP23017 1602/2004/12864 LCD Expander Module
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