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 receive 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 projects. 


  • I2C Address: 0x3F
  • Supply voltage: 5V 
  • The backlight and contrast is adjusted by potentiometer 
  • Comes with 2 IIC interface, which can be connected by Dupont Line or IIC dedicated cable
  • Compatible with 1602 LCD

Question & Answer

Total 12 questions

Q: Please make available Questioned by saad589, 27-Apr-2016

Q: Your previous stock product was working fine. But this one (MH) is not working! What can I do it now? Any working prove or resource ? Questioned by Rabbi_Tech, 20-Jun-2016

Dear customer, these "I2C LCD Adapter" have a built-in ADDRESS. If you try to run a display and there is no response or nothing is displayed you may have the wrong address in the code you are using. Please use an address of 0x3F. Thanks for with us. Answered by FAHIM_REAZA, 21-Jun-2016 10:21 AM

Q: no display, only back light working. I have tried your procedure. What's wrong with it. Questioned by mobashwer, 13-Mar-2017

Hello, what is your order id? Answered by A.R, 14-Mar-2017 11:52 AM

Q: My order ID is #130719 Questioned by mobashwer, 14-Mar-2017

Hello, as far as we can see from the database, this order was placed on November 2016. For any product which is not manufactured by us, problem must be informed within a week of purchase for replacement/ warranty. Answered by A.R, 15-Mar-2017 10:06 AM

Q: I don't ask for replacement. I only want how to make it workable. please mail me the Library and which IDE version to use. Questioned by mobashwer, 15-Mar-2017

Q: Actually the problem was Main chip found TDA1543A instead of PCF8574AT. So funny... Questioned by mobashwer, 21-Jun-2017

Q: i2c address 0x3F দেয়ার পরও কাজ করছেনা। -_- ব্যাকলাইট ডিম হয়ে যাচ্ছে আর ফ্ল্যাশ করছে। এটা কাজ করাবো কিভাবে? :3 Questioned by Shayon02, 01-Oct-2017

গুগলে সার্চ করে আইটুসি স্ক্যানার নামিয়ে নিন। তারপর স্ক্যান করে প্রথমে দেখুন এটার অ্যাড্রেস আসলেই 0x3F কি না । Answered by A.R, 02-Oct-2017 11:56 AM

Q: Can I use it with waveshare 3.2 inch lcd (c) display?? Questioned by Hanzalaibnzahid, 12-Jan-2018

No. Answered by A.R, 13-Jan-2018 09:37 AM

Q: Does the circuit have header pins so that i can connect directly on breadboard? what is the chip in this module? Questioned by mackgiver, 06-May-2018

This one has male headers and PCF8574T. Answered by A.R, 07-May-2018 15:35 PM

Q: with headers? Questioned by AhmedNahian, 28-May-2018

Yes. Answered by A.R, 29-May-2018 09:43 AM

Q: I2c module which is attached to 20 x 4 lcd, available on your website and this i2c module are basically made of the same chip . Then what is the difference them? You specifically mentioned that it is only for 16 x 2 Questioned by Emt646, 23-Jun-2019

No difference. Same thing. Answered by A.R, 24-Jun-2019 09:39 AM

Q: In my case the address was 0x27 But I had to adjust the variable pot on the board to see the texts. Questioned by kaal, 18-Oct-2019

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