RLECS
4x4 Matrix Button Keypad Module 16 Keys 8 Pin for Arduino Raspberry Pi
*Price sourced from Amazon.com. Last updated 2026-05-24. Price and availability subject to change.
Specifications:Type: 8 Pin 4X4 matrix keypad moduleKeypad Number: 16PCB Size: 38x42mmPackage includes: 1 x 4x4 Matrix Keyboard ModuleA basic 16 button keypad for user input. The buttons are setup in a matrix format. This allows a microcontroller to 'scan' the 8 output pins to see which of the 16 buttons is being pressed.
SpecPicks Verdict
SpecPicks classifies RLECS 4x4 Matrix Button Keypad Module 16 Keys 8 Pin for Arduino… as a solid pick with broad community endorsement in the retro software & media category, based on 4 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. RLECS's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for retro software & media of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Solid 4.4★ customer rating
- ✓ Type: 4x4 Matrix Keyboard Module with 16 buttons; PCB Size: 38x42mm
- ✓ Backed by RLECS's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Type: 4x4 Matrix Keyboard Module with 16 buttons; PCB Size: 38x42mm
- Small size. Space saving. More convenient to use with 16 keys and 8 pin
- Suitable for any Aduino project that requires a keyboard connection
- Expanded development application modules for single chip. Can be connected to any microcontroller
- Package includes: 1 x 4x4 Matrix Keyboard Module
Full Specifications
| Type | 4x4 Matrix Keyboard Module with 16 buttons; PCB Size: 38x42mm |
|---|---|
| Brand | RLECS |
| Style | Modern |
| Material | Plastic |
| Model Name | RLECS 4x4 Matrix Button Keypad Module |
| Style Name | Modern |
| Unit Count | 1.0 Count |
| Switch Type | Mechanical |
| Model Number | MKM-8P-4x4 |
| Power Source | Wired |
| Built-In Media | 8 pin keypad |
| Number of Keys | 38 |
| Button Quantity | 16 |
| Keyboard Layout | QWERTY |
Ready to buy?
RLECS 4x4 Matrix Button Keypad Module 16 Keys 8 Pin for Arduino Raspberry Pi is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-24. Price and availability subject to change.
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