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IIC/I2C/TWI 1602 Serial Blue Backlight LCD Module for Arduino UNO R3 MEGA2560 16 X 2, 1602 White letters on Blue display

3.7 out of 5 stars 22 ratings
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Brand frentaly
Memory Slots Available 2
System Bus Standard Supported SATA 2
Manufacturer Frentaly

Product information

Technical Details

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Other Technical Details
Brand ‎frentaly
Item model number ‎LYSB0182N00LU-ELECTRNCS
Item Weight ‎0.01 ounces
Product Dimensions ‎4 x 1 x 2 inches
Item Dimensions LxWxH ‎4 x 1 x 2 inches
Manufacturer ‎Frentaly
ASIN ‎B0182N00LU
Date First Available ‎June 8, 2016

Additional Information

Customer Reviews
3.7 out of 5 stars 22 ratings

3.7 out of 5 stars

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Frentaly IIC/I2C/TWI 1602 Serial Blue Backlight LCD Module for Arduino UNO R3 MEGA2560 16 X 2, 1602 White letters on Blue display

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Customer reviews

3.7 out of 5 stars
22 global ratings

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Customers say

Customers find the LCD module's display quality good and appreciate its ease of use, with one mentioning the 4-wire setup is simple. However, the functionality receives mixed feedback, with some saying it works great while others report it doesn't work at all. Additionally, customers express dissatisfaction with the lack of documentation.

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Display qualityEase of useFunctionalityDocumentation
4 customers mention "Display quality"4 positive0 negative

Customers like the display quality, with one mentioning that it works well and looks great.

"...Display looks great indoors...." Read more

"...You cannot beat the price and ease of use. Great display...." Read more

"...The display works well, and could have been a 5, but not providing important information is why it is getting a 3...." Read more

"...Once the screen is up and working, it looks great." Read more

4 customers mention "Ease of use"4 positive0 negative

Customers find the LCD module easy to use, with one mentioning that the 4-wire setup is particularly simple.

"Would be a LOT better with easy to follow instructions...." Read more

"...You cannot beat the price and ease of use. Great display...." Read more

"...Exactly as advertised. The 4-wire setup is so simple, I will never buy a non-i2c LCD for any project again." Read more

"convenient and easy to run...." Read more

13 customers mention "Functionality"9 positive4 negative

Customers have mixed experiences with the functionality of the LCD module, with some reporting it works great while others say it doesn't work at all.

"...to get the new-liquidcrystal library software this display worked for me with no problem, I just needed a small adjustment to tweak the..." Read more

"...To add to the documentation below, this screen also works well with the Arduino platform using the submitted LiquidCrystal_I2C library, which can be..." Read more

"...Once it was up and running I could not get backlight to work, then I figured out the two pins next to the text "led" need to be jumpered..." Read more

"Works great!..." Read more

3 customers mention "Documentation"0 positive3 negative

Customers report that the product has no documentation.

"...No documentation, but thinks to Liz on December 12,2015 post was able to attach to my Arduino Uno R3...." Read more

"Good display, no documentation..." Read more

"No documentation and not at standard address...." Read more

Works well - here's the documentation that isn't included.
5 out of 5 stars
Works well - here's the documentation that isn't included.
I bought one of these on ebay. Of course, there's no documentation. This i2c LCD works well, IF you know the i2c address and which i2c LCD library to use. Thanks to the Amazon commenters on other similar products for their help. I've distilled their comments into this one. Instructions: 1. Connect SCL to A5, SDA to A4, VCC to 5V and GND to GND. 2. Download the i2cscanner sketch code here to find the right i2c address: http://playground.arduino.cc/Main/I2cScanner It's probably 0x27, but it might be 0x3F, 3. Go here and download the latest library: https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads Once you extract the zip, put all those .h and .cpp files in their own folders of the same name (before file extension) in your Arduino libraries directory. 4. Use this example code to get started: http://arduino-info.wikispaces.com/LCD-Blue-I2C#v1 Also you can use a tiny screwdriver to tweak the potentiometer on the back to the right contrast. I've got a screwdriver on it in the second photo.
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Top reviews from the United States

  • Kyle K.
    5.0 out of 5 stars Works fine. Found code after minimal research.
    Reviewed in the United States on September 8, 2016
    Verified Purchase
    Requires a bit of research to get working, Not on the default channel. (0x3f instead).

    First enable the i2c interface through raspi-config

    Heres the python code in which i found for it: [...]

    #This initializes the lcd screen. Example Print messages at bottom
    # Define some device parameters
    I2C_ADDR = 0x3f # I2C device address
    LCD_WIDTH = 16 # Maximum characters per line

    # Define some device constants
    LCD_CHR = 1 # Mode - Sending data
    LCD_CMD = 0 # Mode - Sending command

    LCD_LINE_1 = 0x80 # LCD RAM address for the 1st line
    LCD_LINE_2 = 0xC0 # LCD RAM address for the 2nd line
    LCD_LINE_3 = 0x94 # LCD RAM address for the 3rd line
    LCD_LINE_4 = 0xD4 # LCD RAM address for the 4th line

    LCD_BACKLIGHT = 0x08 # On
    #LCD_BACKLIGHT = 0x00 # Off

    ENABLE = 0b00000100 # Enable bit

    # Timing constants
    E_PULSE = 0.0005
    E_DELAY = 0.0005

    #Open I2C interface
    #bus = smbus.SMBus(0) # Rev 1 Pi uses 0
    bus = smbus.SMBus(1) # Rev 2 Pi uses 1

    def lcd_init():
    # Initialise display
    lcd_byte(0x33,LCD_CMD) # 110011 Initialise
    lcd_byte(0x32,LCD_CMD) # 110010 Initialise
    lcd_byte(0x06,LCD_CMD) # 000110 Cursor move direction
    lcd_byte(0x0C,LCD_CMD) # 001100 Display On,Cursor Off, Blink Off
    lcd_byte(0x28,LCD_CMD) # 101000 Data length, number of lines, font size
    lcd_byte(0x01,LCD_CMD) # 000001 Clear display
    time.sleep(E_DELAY)

    def lcd_byte(bits, mode):
    # Send byte to data pins
    # bits = the data
    # mode = 1 for data
    # 0 for command

    bits_high = mode | (bits & 0xF0) | LCD_BACKLIGHT
    bits_low = mode | ((bits<<4) & 0xF0) | LCD_BACKLIGHT

    # High bits
    bus.write_byte(I2C_ADDR, bits_high)
    lcd_toggle_enable(bits_high)

    # Low bits
    bus.write_byte(I2C_ADDR, bits_low)
    lcd_toggle_enable(bits_low)

    def lcd_toggle_enable(bits):
    # Toggle enable
    time.sleep(E_DELAY)
    bus.write_byte(I2C_ADDR, (bits | ENABLE))
    time.sleep(E_PULSE)
    bus.write_byte(I2C_ADDR,(bits & ~ENABLE))
    time.sleep(E_DELAY)

    def lcd_string(message,line):
    # Send string to display

    message = message.ljust(LCD_WIDTH," ")

    lcd_byte(line, LCD_CMD)

    for i in range(LCD_WIDTH):
    lcd_byte(ord(message[i]),LCD_CHR)

    lcd_init()
    lcd_string("Sample Text",LCD_LINE_1)
    lcd_string("!@#$%^&*()",LCD_LINE_2)
    One person found this helpful
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  • micah
    4.0 out of 5 stars Good display, no documentation
    Reviewed in the United States on April 18, 2017
    Verified Purchase
    Once I found Liz's review (above) I was able to get the display running no problem. Once it was up and running I could not get backlight to work, then I figured out the two pins next to the text "led" need to be jumpered together. Display looks great indoors. I'm using a Mac w/ the Arduino IDE to code, and found the easiest way to add the newcrystal library is to keep it zipped and use "Add .zip Library" function.
    One person found this helpful
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  • MaverickCCIE
    1.0 out of 5 stars May have got a bad one but just in case will not buy a ...
    Reviewed in the United States on January 14, 2016
    Verified Purchase
    Worked but did not work. Screen had ghost letter and would not show the letter no matter what library I used.See Photo. May have got a bad one but just in case will not buy a Frentaly product again. Going to buy Adafruit next time.
    Customer image
    MaverickCCIE
    1.0 out of 5 stars
    May have got a bad one but just in case will not buy a ...

    Reviewed in the United States on January 14, 2016
    Worked but did not work. Screen had ghost letter and would not show the letter no matter what library I used.See Photo. May have got a bad one but just in case will not buy a Frentaly product again. Going to buy Adafruit next time.
    Images in this review
    Customer image
    2 people found this helpful
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  • Amazon Customer
    2.0 out of 5 stars No characters dispaying
    Reviewed in the United States on August 27, 2016
    Verified Purchase
    . No documentation, but thinks to Liz on December 12,2015 post was able to attach to my Arduino Uno R3. Downloaded and installed the Libraries and tried the sample programs. The backlight will blink on command, the cursor will advance when sending characters to it, but no characters will display. Adjusting the pot on the back side displays a character map, but no characters.
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  • James K.
    3.0 out of 5 stars Would be a LOT better with easy to follow instructions
    Reviewed in the United States on February 3, 2017
    Verified Purchase
    Would be a LOT better with easy to follow instructions. As it stands I can get it to power on but can't program it correctly...eventually I'll figure it out but still.
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  • Thomas M Rode
    5.0 out of 5 stars Nice Display Great Value
    Reviewed in the United States on March 15, 2016
    Verified Purchase
    Thanks to Liz on December 12, 2015 post with the instructions and where to get the new-liquidcrystal library software this display worked for me with no problem, I just needed a small adjustment to tweak the potentiometer for the backlight. You cannot beat the price and ease of use. Great display....
    One person found this helpful
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  • Captain Bill
    4.0 out of 5 stars BEWARE - Good product but shipping can cause boards to short together.
    Reviewed in the United States on September 24, 2016
    Verified Purchase
    I worked with this for HOURS before realizing that it's manufactured with the I2C converter on back such that it was grounded against the LCD mounting tabs (you can see the tabs at the 4 corners in the photo). During shipping, the already tight tolerance for clearance smashed them together. If you don't look for it, you will spend hours like I did wondering why your software isn't working. Also, the contrast pot is "scratchy". That is, there are blank spots in the range of adjustment. The proper terminology for this is to say it's a "noisy pot". Otherwise, I do like this display and it works quite well. you will have to fish around for libraries.
    One person found this helpful
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  • basma
    1.0 out of 5 stars After waiting I received it without the jumper wire unlike ...
    Reviewed in the United States on April 29, 2017
    Verified Purchase
    After waiting I received it without the jumper wire unlike what is shown in the picture.. I had to delay the project I'm working on just to order jumper wires which was a headache.. Its unreasonable and unacceptable especially with this high price
    One person found this helpful
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