- 主頁 /
- 電子產品 /
- Security & Surveillance /
- 配件 /
- Access-Control Keypads /
- 3x4 Matrixes Array 12 Button Keypad Keyboard ...
商品＃:
137464668
3x4 Matrixes Array 12 Button Keypad Keyboard Module 12 Key MCU Membrane Button Keypad Electric DIY Kit 12 Button Keypad
商品＃:
137464668
TWD 432
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from 美國
0 ratings
撰寫評論
有存貨
從USA商店匯入
立即訂購並活動它 Monday, 八月 03
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
This 4x3 Keypad Matrix lets you quickly add control to your electronics projects.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
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.
產品詳情
| 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.
-
Limited Technical Knowledge
Users without basic electronics knowledge may struggle with installation, configuration, and integration into projects.
-
Heavy Use Scenarios
This keypad may not withstand heavy usage or rough handling, as it's designed for light to moderate applications.
產品描述
3x4 Matrixes Array 12 Button Keypad Keyboard Module 12 Key MCU Membrane Button Keypad Electric DIY Kit 12 Button Keypad
有疑問？ 和我們聊天
客戶問答
-
問題:
What is the 3x4 Matrixes Array 12 Button Keypad Keyboard Module used for?
Answer: 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. -
問題:
How do I connect the 12 Button Keypad to my microcontroller?
Answer: 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. -
問題:
Can I use this keypad module in projects with Raspberry Pi?
Answer: 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. -
問題:
What programming languages can I use with this keypad?
Answer: 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. -
問題:
What type of projects can I create using the 12 Button Keypad?
Answer: 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. -
問題:
Is the 12 Button Keypad compatible with Arduino?
Answer: 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. -
問題:
Can this keypad handle multiple button presses at once?
Answer: 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. -
問題:
What is the size of the 12 Button Keypad module?
Answer: 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. -
問題:
How sensitive are the buttons on the keypad?
Answer: 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. -
問題:
Where can I buy the 12 Button Keypad in Taiwan?
Answer: 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.
QMQJIA Access-Control Keypads Editorial Review
未找到編輯評論
Customer Reviews & Ratings
1 客戶評價
-
5 星
100%
-
4 星
0%
-
3 星
0%
-
2 星
0%
-
1 星
0%
評論這個產品
和其他客戶分享您的想法
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
安全結帳
Global Delivery
Easy Returns
Genuine Products
Product Price History
重要資訊
- 限制：對於國際運輸的產品，請注意任何製造商保修可能無效；製造商服務選項可能不可用；產品手冊、說明和安全警告可能不是目的地國家的語言；產品（及隨附材料）的設計可能不符合目的地國家的標準、規範和標籤要求；並且產品可能不符合目的地國家的電壓和其他電氣標準（如果適用，需要使用適配器或轉換器）。收件人有責任確保產品可以合法進口到目的地國家。當從Ubuy或其關聯公司訂購時，收件人是記錄在案的進口人，並且必須遵守目的地國家的所有法律和法規。
- 由於Ubuy是一個全球搜索引擎，因此並非Ubuy上列出的所有產品都在出售。產品受出口/貿易法規的約束。
TWD 432
立即訂購並活動它 Monday, 八月 03
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.)
QTY:
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Fastest cross-border delivery
特色和優勢
- 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.