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Your cart is empty. 2pcs IIC I2C Serial Interface Board Module LCD1602 Address Changeable Arduino 1602/2004 I2C Interface 4-Wire 1602/2004 screen
Arduino IIC/I2C Interface LCD1602/2004 adapter plate without LCD screen
Arduino control board IO port is only 20, plus some sensor, SD card Han, relay modules and more, IO port is not enough,
The original 1602/2004 screen requires 7 IO port can drive up, we have developed this module can help you save five IO ports, we send arduino library
Product parameters:
1. Dimensions: 41.5mm (length) * 19mm (W) * 15.3mm (height)
2. Weight: 5g
3. PCB Color: Black
4. Supply Voltage :2.5-6V
5. Supports the I2C protocol
6. With backlight power control, can be connected via jumper settings are backlight power. Plug the jumper to connect the backlight off, unplug the jumper to disconnect the backlight power
7. Contrast can be adjusted by turning the blue potentiometer clockwise increase, counterclockwise weakened. Potentiometer design on the front, enabling customers to freely adjust anytime
8. Modules can be cascaded to cascade up to eight. By short-circuiting A0/A1/A2 modify the device address. The default address is 0x27. Note: Please contact us if you need the Schematic and Datasheet.
j.yoders
2025-09-04 13:38:33
After previously purchasing a 20x4 I2C character LCD - also from Hiletgo - I wanted to dive deeper into the world of I2C communications, and I thought that this would be a great companion to the 16x2 character LCD that was included with my Elegoo Arduino UNO starter kit. I had a little bit of trouble with adding solder to the jumpers that assign an address to the modules, mainly because my soldering iron tip was too big, but I eventually was able to set the modules to the addresses that I wanted; I set one to 0x26 and the other to 0x25 to avoid conflicts with the 20x4 display, which I left at the default 0x27 address.Once the custom addresses were set, I proceeded to test the modules using the I2C scanning sketch for Arduino, and they both showed up with the addresses that I wanted. After adjusting the contrast, I wrote up a quick sketch to do some further testing, and both modules did their job and did it quite well. I removed the jumper for the backlight and replaced the jumper with a potentiometer for easy brightness adjustment.
Cat Kintsugi
2025-08-25 18:51:47
I have multiple driving both LCD and VFD displays, these have worked better than any other controller I've used; I would definitely buy more!
James Bunnell
2025-08-13 11:37:56
I was building an external LCD display to use with my Odroid-C4. I needed an I2C interface. This product provided a reliable circuit board, a pinout description to assure compatibility and easy installation. I just don't like the external power pins for backlight since they are extending beyond the board and don't allow for dynamic controls. I ended up using a 2N7000 with a PWM to control the backlight.
Kindle Customer
2025-07-22 18:39:16
I have these in different sizes and abilities. It fits in very small places and handheld devices. It's amazing how one can read even small text on the display.
Gary
2025-07-07 18:55:17
Fortunately another reviewer left instructions on how to change the address. Soldering that jumper on is not easy even for someone who instructed NASA rated soldering classes. But my eyes were way better then. The worst part is that all of the pins need to be removed so you can solder it to the back of a display. It should have not even had the pins installed. They could have included them. If you don't have a decent soldering iron I wouldn't recommend trying it. But at least they are so cheap you can give it a try.
Douglas Crowe
2025-06-14 11:50:02
Great converter and cleanly made. Works as expected with my 16 X 2 displays.
Kindle Customer
2025-06-08 16:26:28
Great product
Michael Gelose
2025-04-05 15:41:33
If the display lights up but you don’t see any characters check the setting of the little blue variable resistor on the controller board. Mine was turned all the way down when it came from the factory. One I adjudged it with a Phillips jewelers screw driver the board and display worked great
R S
2025-03-13 12:42:24
Works perfectly, reduces the number of pins used on the mcu. Fits directly on to the back of the LCD display. Libraries are available for Arduino.
Dickiedido
2025-02-16 10:28:18
Can't get these to work.They probably do work but I must not have correct library, though I used the libraries they say to use.
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