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4x4 Keypad 16 Key 4PCS Matrix Array Membrane Switch Keypad Keyboard for Microcontroller
Description
🔑 Elevate Your Projects with Precision and Style!
- BUILT TO LAST - Experience a lifespan of 1,000,000 tactile presses.
- SLEEK STYLISH - Ultra-thin design that fits seamlessly into any setup.
- EASY INTEGRATION - Adhesive backing for effortless installation on any microcontroller.
- PERFECT FOR PROFESSIONALS - Ideal for security systems, menu selections, and data entry.
- UNLOCK ENDLESS POSSIBILITIES - Transform your projects with a versatile 4x4 keypad!
This 4x4 Keypad features a 16-key matrix array, designed for seamless integration with microcontrollers. With an impressive lifespan of 1,000,000 presses and a temperature range of 0-60°C, it’s perfect for various applications including security systems and data entry. The ultra-thin design and adhesive backing make installation a breeze, ensuring you can focus on what matters most—innovation.
Reviews
A**R
Overall very pleased.
Based upon some of the other reviews, I decided to test all 4 keypads right away. Since the keypads did not provide ANY documentation, I went online and found the standard connections for a keypad. The new keypads exactly matched the standard connections and all of the keys on all of the keypads worked flawlessly. I agree with one of the other reviewers that a wiring diagram would have been nice.
P**Y
Seem good
Seem to be good quality, but I’m have yet to actually get them to work… maybe someday
C**W
Not a premium product nor price
I did not expect the contact resistance to be so high ~50 ohms. That said, the application I was investigating should not care. The connectors are a little flakey so I would advise seeing how uniform the contact resistance is across the switches.
J**S
Excellent key pads
well made key pads. Just wish they would include a schematic somewhere. I had to find a diagram on the internet which ended up being opposite of the keypads I bought. Was easy to change the pins. I'd definitely buy again.
M**L
Good for testing
It helped me to prove of concept of a project. Not difficult to program.
S**E
Exactly what I Needed
This product is exactly what I needed!
J**N
3/4 work fine
I wanted to try building an escape room in a box for fun so I needed a few of these. Luckily 3 of the 4 work so I'll have enough, but I wish I had only paid 3/4 of the money. Documentation would have been nice as they do seem to be opposite of what I had found on other sites.
I**A
All 4 keypads had multiple keys that don't work. Not a single useable keypad in the bunch
Used a meter to check every key. First row of the first keypad I checked had 2 dead keys. Turns out every keypad had multiple bad keys. Buy somewhere else.
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