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Item #:
204010076
4 x 3 Matrix Array 12 Switch Keypad Keyboard Module 12 Key MCU Membrane Switch Keypad Compatible with Arduino
62% of respondents would recommend this to a friend
Item #:
204010076
DKK 123
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from UK
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In stock
Imported from UK store
QTY:
Order now and get it around Thursday, October 29
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The keyboard matrix lets you quickly add controls to your electronic project.
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What Stands Out
Compact Design
The 4 x 3 matrix layout provides a space-saving solution ideal for compact projects, perfect for Arduino and other microcontroller applications.
Easy Integration
Compatible with Arduino, this keypad module simplifies the connection and project setup, making it accessible for hobbyists and beginners alike.
Durability
Constructed with robust membrane technology, this keypad ensures long-lasting performance, resistant to wear and tear for reliable use in various environments.
Product Details
| Compatible Devices | Arduino, AVR, PIC |
| Connectivity Technology | USB-A |
| Product Features | Membrane |
| Power Source | wired. |
| Switch Type | Membrane |
| Keyboard Layout | QWERTY |
| Hand Orientation | Ambidextrous |
| Button Quantity | 12 |
| Mechanical Keyboard Switch Model | Membraan |
| Compatible Operating System Family | Windows |
| Number of Keys | 12 |
| Number of Sections | 1 |
| Colour | multiple colors |
| Style Name | Modern |
| Theme | RGB |
| Brand Name | HALJIA |
| Keyboard Description | Membrane |
| Antenna Location | Education, Programming |
| Box Contents | USB Cable |
| Manufacturer | HALJIA |
| Number of Packs | 1 |
| Number of Items | 1 |
| Country of Origin | China |
| Manufacturer Part Number | ADN2006037 |
| Item Dimensions L x W x H | 7L x 5.1W centimetres |
| Keyboard Plate Material | metal, plastic |
| Brand | HALJIA |
| Recommended uses for product | Education, Programming |
| Special feature | Membrane |
| Style | Modern |
| Product dimensions | 7L x 5.1W centimetres |
| Included components | USB Cable |
Who Should Buy?
-
Hobbyist Programmers
Ideal for hobbyists looking to create custom projects using Arduino or similar microcontrollers.
-
Education Sector
Perfect for educational purposes, teaching students about electronics and basic programming concepts.
-
DIY Electronics Projects
Great for makers who want to build interactive devices or control systems in their DIY electronics projects.
-
High-Performance Needs
Not suitable for applications requiring rapid input or high performance due to its basic mechanical design.
Product Description
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HALJIA Keyboards Editorial Review
4 X 3 Matrix Array 12 Switch Keypad Keyboard Module 12 Key MCU Membrane Switch Keypad Compatible With Arduino is designed for seamless integration with popular platforms like Arduino and AVR. However, users have expressed significant frustration due to the lack of clarity in the wiring and connection configuration, as outlined in several reviews. Many have pointed out that the pins do not follow a logical sequence, which complicates usage, and some buttons fail to register key presses entirely. This makes it challenging for hobbyists and professionals alike to achieve the intended functionality without extensive modifications or troubleshooting.
Customer Reviews & Ratings
50 customers ratings
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5 Star
33%
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4 Star
7%
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3 Star
12%
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2 Star
9%
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1 Star
39%
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Pros
- Compatible with Arduino and other microcontrollers
- Ideal for education and programming applications
- Compact design with 12 functional buttons
- Modern RGB theme enhances aesthetics
- Includes a USB cable for easy connectivity
Cons
- Documentation and wiring instructions could be clearer
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
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Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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DKK 123
Order now and get it around Thursday, October 29
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Fastest cross-border delivery
Features & Benefits
- 12 keys (4x3) matrix keyboard module perfect for electronic projects.
- Includes numbers 0-9 and standard symbols * and #.
- Compatible with microcontrollers like AVR and PIC for Arduino applications.
- Easy plug and play installation with no cable splicing required.
- Compact size (69.5 x 51 x 10 mm) and lightweight (17.5g) for convenience.
- Durable design made from high quality plastic and metal.
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