How do I connect the 12 Button Keypad to my microcontroller?

Connecting the 12 Button Keypad to a microcontroller involves using a few GPIO pins. The module typically has 8 pins: 3 columns and 4 rows. You’ll connect the row pins to the microcontroller pins configured as inputs and the column pins to outputs. With coding, you can read the key presses by scanning through the rows and columns, making it easy to register the button presses in your projects. This setup is widely used in hobbyist electronics.

Can I use this keypad module in projects with Raspberry Pi?

Yes, the 3x4 Matrixes Array 12 Button Keypad is compatible with Raspberry Pi. You can utilize the GPIO pins to set it up similarly to how it’s connected with other microcontrollers. With the right libraries and code, you can easily capture button presses to control various peripherals or run programs. This compatibility expands your DIY project options and enhances interactive functionalities in your Raspberry Pi applications.

What programming languages can I use with this keypad?

You can use multiple programming languages with the 12 Button Keypad, including C/C++ for Arduino, Python for Raspberry Pi, and similar languages that support GPIO interfacing. Depending on your microcontroller, libraries such as Keypad for Arduino or RPi.GPIO for Raspberry Pi can be employed to make interaction with the keypad straightforward. This versatility allows you to implement the keypad into different environments and projects, enhancing your learning and creativity in coding.

What type of projects can I create using the 12 Button Keypad?

The 12 Button Keypad Module is very versatile, suited for projects like security systems, access control panels, simple games, and more. For instance, you can build a digital lock that requires a number code to unlock or create a budget tracker that uses the keypad for inputting expenses. Additionally, it's often used in educational robotics to enhance user input options, making it suitable for beginners learning about electronics.

Is the 12 Button Keypad compatible with Arduino?

Yes, the 3x4 Matrixes Array 12 Button Keypad is highly compatible with Arduino boards. This makes it an excellent component for projects that require user input. You can easily integrate it into your Arduino projects using existing libraries to manage button states effortlessly. This compatibility opens up numerous possibilities for student projects, prototypes, or any DIY electronics application that requires a keypad interface.

Can this keypad handle multiple button presses at once?

The 12 Button Keypad typically does not support multiple simultaneous key presses due to its matrix layout. When several keys are pressed, the electrical signals can cause ghosting, resulting in incorrect readings. To handle this, you might need to implement additional circuitry or choose more advanced keypads designed to handle N-key rollover if multiple inputs are a critical requirement in your project.

What is the size of the 12 Button Keypad module?

The 3x4 Matrixes Array 12 Button Keypad is compact, often measuring around 4x4 cm. This small size allows it to fit easily into various projects without taking up much space. You can incorporate it seamlessly into enclosures or control panels where space is a concern, making it ideal for miniature devices or complex projects that require a user interface without expanding the overall dimensions.

How sensitive are the buttons on the keypad?

The buttons on the 12 Button Keypad are designed for a responsive user experience. They typically require a light touch to activate, ensuring user-friendly interaction. The sensitivity makes it suitable for a range of applications, whether you’re designing a simple game controller or a numeric input device. Users generally appreciate the tactile feedback, enhancing usability in interactive projects.

Where can I buy the 12 Button Keypad in Singapore?

You can purchase the 3x4 Matrixes Array 12 Button Keypad Keyboard Module from Ubuy, which offers a convenient online shopping experience focused on various electronic components. They provide a wide selection of DIY kits and electronic parts, making it an ideal choice for hobbyists and professionals looking to enhance their projects with quality components.

Is QMQJIA 3x4 Matrixes Array 12 Button Keypad Keyboard Available to Shop Online in Singapore?

Yes, at Ubuy Singapore this product is available for you to shop at a reasonable price. The QMQJIA 3x4 Matrixes Array 12 Button Keypad Keyboard is not available locally but you can trust us with our express shipping services.

How Long Does It Take to Get Product After Placing the Order?

The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

QMQJIA

This 4x3 Keypad Matrix lets you quickly add control to your electronics projects.

QMQJIA

Item #: 137464668

QMQJIA 3x4 Matrixes Array 12 Button Keypad Keyboard Module 12 Key MCU Membrane Button Keypad Electric DIY Kit 12 Button Keypad

Q: What is the 3x4 Matrixes Array 12 Button Keypad Keyboard Module used for?

The 3x4 Matrixes Array 12 Button Keypad Keyboard Module is primarily used for inputting data in various electronic projects. It acts as an interface for microcontrollers like Arduino, allowing users to collect numeric or alphanumeric inputs through its 12 buttons. This keypad is essential in DIY kits for projects such as alarm systems, door access controls, or simple calculators, providing an efficient way to enter commands easily.

95% of respondents would recommend this to a friend

Item #: 137464668

SGD 16

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

^{*All items will import from US}

Availability : In stock

Imported from USA store

QTY:

Order now and get it around Friday, October 16

Secured transaction

Our Top Logistics Partners

This 4x3 Keypad Matrix lets you quickly add control to your electronics projects.

U-Care Warranty:

None

Select a Plan

Fast
Shipping

Free
Return^*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Compact Design

The 3x4 matrix layout offers a space-saving solution for various projects, making it ideal for DIY enthusiasts and electronic developers seeking efficient interface options.

User-Friendly

Easy to install and integrate with microcontrollers, this keypad module simplifies user interfaces, enhancing accessibility for novice and experienced developers alike, ensuring a smooth project experience.

High Durability

Constructed with quality membrane materials, this keypad is designed for long-term use, effectively resisting wear and tear, ensuring reliability for continuous electronic applications.

Product Details

Power Source	Wired
Switch Type	Membrane
Hand Orientation	Ambidextrous
Button Quantity	12
Water Resistance Level	Not Water Resistant
Number of Keys	12
Number of Sections	1
Color	Black
Style Name	Modern
Theme	Number
Enclosure Material	Acrylonitrile Butadiene Styrene
Brand	QMQJIA
Keyboard Description	Membrane
Antenna Location	Office
Built-In Media	1 x USB Cable
Model Number	d07acc43-3297-4cf8-8cde-16f507980db1
Manufacturer	QMQJIA
Mfr Part Number	QMQJIA
Recommended Uses For Product	Office
Style	Modern
Material	Acrylonitrile Butadiene Styrene
Included Components	1 x USB Cable
Item Weight	0.3 lbs (140 grams)

Who Should Buy?

DIY Electronics Enthusiasts
Ideal for hobbyists creating personal electronic projects requiring multiple inputs through a simple interface.
Education Purposes
Perfect for teachers and students focused on learning programming and electronics concepts through hands-on activities.
Embedded System Developers
Useful for developers needing an efficient keypad for microcontroller-based projects, facilitating user interactions easily.

Professional Applications
Not suitable for high-demand environments requiring robust, durable, and reliable input devices with high performance.

Product Description

QMQJIA 3x4 Matrixes Array 12 Button Keypad Keyboard Module 12 Key MCU Membrane Button Keypad Electric DIY Kit 12 Button Keypad

Have any Query? Chat with us

Customer Questions & Answers

Question: How to Shop QMQJIA 3x4 Matrixes Array 12 Button Keypad Keyboard Online From Ubuy?

Answer: It’s easy to shop QMQJIA 3x4 Matrixes Array 12 Button Keypad Keyboard online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.
Question: Is QMQJIA 3x4 Matrixes Array 12 Button Keypad Keyboard Available to Shop Online in Singapore?

Answer: Yes, at Ubuy Singapore this product is available for you to shop at a reasonable price. The QMQJIA 3x4 Matrixes Array 12 Button Keypad Keyboard is not available locally but you can trust us with our express shipping services.
Question: How Long Does It Take to Get Product After Placing the Order?

Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

QMQJIA Access-Control Keypads d07acc43-3297-4cf8-8cde-16f507980db1 Editorial Review

No editorial reviews found

Customer Reviews & Ratings

5.0

1 customers ratings

5 Star

100%
4 Star

0%
3 Star

0%
2 Star

0%
1 Star

0%

Review this product

Share your thoughts with other customers

Product Price History

Important information

Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

SGD 16

Order now and get it around Friday, October 16

QTY:

Secured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners

Fastest cross-border delivery

Features & Benefits

Compact design ideal for alarm/safety devices.
Quickly integrate into electronics projects.
Durable construction with plastic and metal materials.
Direct replacement with simple plug-and-play installation.
Perfect for access control and device management.
Enhance your DIY electronics with a reliable keypad.

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns ^*, and secure packaging on every order.

QMQJIA 3x4 Matrixes Array 12 Button Keypad Keyboard Module 12 Key MCU Membrane Button Keypad Electric DIY Kit 12 Button Keypad

SGD 16

Fast Shipping

Free Return*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

What Stands Out

Product Details

Who Should Buy?

Product Description

Customer Questions & Answers

QMQJIA Access-Control Keypads d07acc43-3297-4cf8-8cde-16f507980db1 Editorial Review

Customer Reviews & Ratings

Review this product

Product Price History

Important information

SGD 16

Features & Benefits

Ubuy Assurance

Fast
Shipping

Free
Return^*