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Details
Overview:
The LCD Keypad shield is developed for Arduino compatible boards, to provide a user-friendly interface that allows users to go through the menu, make selections etc.
It consists of a 1602 white character blue backlight LCD.
The keypad consists of 5 keys — select, up, right, down and left.
To save the digital IO pins, the keypad interface only uses one ADC channel.
The key value is read out through a 5 stage voltage divider.
Diagram:

Reference Video:
Customer Reviews
- Worth the moneyReview by Hel
-
Nice soldering, I think. It has a very bright LCD screen and is compatible with the Arduino UNO. Also works using the sample library. (Posted on 5/21/13)Quality Price Value - Fast help from the supportReview by chunk
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I bought it two weeks ago, and received it a week ago. It's fast for the free shipping.Quality Price Value
Connected to Mega2560, uploaded the default LCD1602 code. I saw power red led, but nothing on the display. I turned the brightness screw 2 times but no change. No hello no data. Contacted the support, problems solved. It was the path fault, not the LCD itself. (Posted on 4/25/13) - Nice experience, and nice priceReview by Kan
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An issue with the shipment was resolved promptly. Trustworthy and honorable people. (Posted on 4/24/13)Quality Price Value - Well, this time is full-documentedReview by Borq
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The listing had improved a bit since my last purchase in 2012. Happy to see the changes. And the product is good as ever. (Posted on 4/23/13)Quality Price Value - Nice ProductReview by mark
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Works really well, just need to change i/o pin numbers in code and pow it appeared. Been using on all manner of things. (Posted on 11/4/12)Quality Price Value - Great!Review by Brandon
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You can't beat it for the money. I wasn't sure about the shield part at first, but it does allow me to focus on programming. I'm not sure what I'd do if I needed to get an external signal into the Arduino, but at this price point it doesn't matter. Great product! (Posted on 9/30/12)Quality Price Value - Nice LCD Display, like itReview by Tool Geek
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This board is called a shield because it is pin compatible with and piggybacks right on top of the Arduino board. It has a 2 line x 16 character display and 5 input keys plus a reset. The keys are configured like the cursor keys on a PC having a left, right, up, and down as well as a select. So, with this shield in place, the microcontroller can be used with only a power supply and doesn't have to be tethered to a computer. The keys provide input and the LCD provides the display.Quality Price Value
Nice display! (Posted on 7/13/12) - Works wllReview by Timmy
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It works well with my arduino uno and 2560. Nice experiences. (Posted on 5/23/12)Quality Price Value - All five starsReview by DILY
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What can I say? Nice service, good price. Thank you. (Posted on 5/23/12)Quality Price Value - nice dealReview by Smoto
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Customer support Cherry impressed me. She is so nice and helped me a lot.Quality Price Value
I'm just a beginner and learn a lot from her. Very good product, thanks again. (Posted on 5/23/12)
Document
2. Pin Allocation:
|
Pin |
Function |
|
Analog 0 |
Button (select, up, right, down and left) |
|
Digital 4 |
DB4 |
|
Digital 5 |
DB5 |
|
Digital 6 |
DB6 |
|
Digital 7 |
DB7 |
|
Digital 8 |
RS (Data or Signal Display Selection) |
|
Digital 9 |
Enable |
|
Digital 10 |
Backlit Control |
3. Manual
4. Sample Code
Key_Crab, LCD4Bit_Mod, Ultrasonic_Keypad

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