Qunqi IIC/I2C/TWI 1602 Serial Blue Backlight LCD Module for Arduino UNO R3 MEGA2560The item works as expected. I used library LiquidCrystal_PCF8574 which is available from the Arduino library manager.
My device used i2c address 0x27. I needed to manually adjust the contrast so the text could be seen. I have included an image with the contrast adjust screw.
I ran example sketch LiquidCrystal_PCF8574_Test which was included. I did get this cryptic message on the serial display:
Dose: check for LCD
Error: 0: LCD found.
I did figure out that meant there were 0 Errors and the LCD was found.
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Product information
| Product Dimensions | 5.8 x 1 x 4.1 inches |
|---|---|
| Item Weight | 1.58 ounces |
| Manufacturer | Qunqi |
| ASIN | B01E4YUT3K |
| Country of Origin | China |
| Item model number | MMK-143 |
| Customer Reviews |
4.1 out of 5 stars |
| Best Sellers Rank | #5,598 in Single Board Computers (Computers & Accessories) |
| Is Discontinued By Manufacturer | No |
| Date First Available | April 12, 2016 |
Warranty & Support
Product Warranty: For warranty information about this product, please click here
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Product Description
Qunqi IIC/I2C/TWI 1602 Serial Blue Backlight LCD Module for Arduino UNO R3 MEGA2560
- 100% Brand New
Specification:
- This module uses only two IO ports
- Blue Balcklight.
Package include:
- 1x IIC/I2C/TWI 1602 Serial LCE module
Detail Picture:
Works great once you figure out it's address and pin configuratioin
Works great once you figure out it's address and pin configuratioin. I have it connected to a Leonardo and a BME280 weather sensor that is outside, been running for a few days straight without issue. Used an I2c sniffer to find the address and a scanner to figure out the pins. I highly recommend using fmalpartida's library that is available here[...] Then just make sure any program has the following. #define I2C_ADDR 0x3F and LiquidCrystal_I2C lcd(0x3F, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);
Top reviews from the United States
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- Reviewed in the United States on December 29, 2017
- Reviewed in the United States on December 7, 2016
- Reviewed in the United States on July 15, 2022
- Reviewed in the United States on December 9, 2016
Works great once you figure out it's address and pin configuratioin. I have it connected to a Leonardo and a BME280 weather sensor that is outside, been running for a few days straight without issue. Used an I2c sniffer to find the address and a scanner to figure out the pins. I highly recommend using fmalpartida's library that is available here[...]
Works great once you figure out it's address and pin configuratioin
Reviewed in the United States on December 9, 2016
Then just make sure any program has the following.
#define I2C_ADDR 0x3F
and
LiquidCrystal_I2C lcd(0x3F, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);
Images in this review
- Reviewed in the United States on October 20, 2017
- Reviewed in the United States on December 14, 2018
- Reviewed in the United States on January 24, 2017
Top reviews from other countries
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- Jennifer EdwardsReviewed in the United Kingdom on November 15, 2018
Really Nice, Bright, backlit, Two Wire LCD display
Display is bright and clear once you set contrast by adjusting the pot on the board with a small screwdriver. I especially like the four large mounting holes in the corners. Along with the sharp looking black bezel it will make for nice and easy installations in any enclosure.Jennifer EdwardsReally Nice, Bright, backlit, Two Wire LCD display
Reviewed in the United Kingdom on November 15, 2018
Came well packaged and in perfect working condition. Easily accessed with arduino uno r3 board using the LiquidCrystal_PCF8574.h library available from the Arduino Library Manager. I used the default address of 0x27 in my code that was used in the examples that came with the library with no isues at all.
Amazing value, I will use this display again.
Images in this review
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Paul-alexandre D.Reviewed in France on February 28, 2019
Reduction importante des cables
- TheoReviewed in the United Kingdom on July 1, 2021
Very nice LCD for i2c, worked with Pico
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