4/6/2023 0 Comments Download wire library arduino![]() ![]() Using these connections you can convert any 16×2 LCD into an i2c supported LCD. All the 16 pins of the PCF8574 driver module are connected with the LCD pins. The links control the least significant 3 bits, fitting the link sets the bit low.Īs you can see the circuit diagram is really simple. As you can see no links are fitted the 7-bit address is 0x27 which you have to confirm in the datasheet, may be your LCD have a different i2c address. I2c addresses:Īs you can see the driver module is also provided with A0, A1, and A2 links which can be used to set the i2c address. A 10K variable resistor which is used for the adjustment of the LCD contrast. The four male headers are clearly labeled as GND, VCC, SDA, and SCL. This is just a normal 16×2 LCD which is converted into an i2c supported type LCD by using the PCF8574 i2c Driver module. I would appreciate your support in this way! I may make a commission if you buy the components through these links. Without any further delay let’s get started!!! ![]() In this tutorial you will also learn how the same i2c 16×2 LCD can be interfaced with the Nodemcu ESP8266 Wifi Module which used in IOT based projects. In this tutorial, you will learn how to display text on the i2c 16×2 LCD using Arduino. This type of the LCD can be interfaced with any controller board using only 2 wires. The i2c 16×2 LCD is in fact the same LCD but it comes with the i2c driver module soldered on the backside of the LCD The wiring can be reduced by replacing a regular 16×2 LCD with the I2C supported 16×2 LCD. A regular 16×2 LCD module needs a lot of wires, due to which maximum of the controller I/O pins are wasted. For displaying the Date and time information, In a password-protected door security system, and so on. I2C 16×2 LCD with Nodemcu ESP8266 Circuit Diagram:Īrduino 16×2 I2C LCD, Nodemcu 16×2 i2c LCD Code & Library- I have been using 16×2 LCD in different projects. ![]()
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