- 홈페이지 /
- 전자제품 /
- Security & Surveillance /
- 액세서리 /
- Access-Control Keypads /
- 4Pcs 4x5 Keys Matrix Array 20 Key Keypad Memb...
제품번호 #:
90229005
4Pcs 4x5 Keys Matrix Array 20 Key Keypad Membrane Switch Control Panel for Arduino
90% of respondents would recommend this to a friend
제품번호 #:
90229005
KRW 24495
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from 미국
0 ratings
리뷰 작성
재고
USA 스토어에서 가져옴
지금 주문하시면 도착 예정일 Monday, 9월 21
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
Enhance your projects with our reliable 4Pcs 4x5 Keys Matrix Array 20 Key Keypad Membrane switch, perfect for Arduino control panels!
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 미국 store (110-120). Recommended power converters 지금 구매.
What Stands Out
Compact Design
The 4x5 matrix layout ensures space-saving efficiency, making it ideal for projects where board real estate is limited, while still providing 20 functional keys for extensive control.
Versatile Compatibility
Designed for seamless integration with Arduino and similar platforms, it allows hobbyists and developers to easily implement advanced user interfaces in their electronic projects.
Durable Performance
Constructed with high-quality materials, this membrane switch boasts longevity and resilience under regular use, ensuring reliable operation in various environments and applications.
제품 세부 정보
| Compatible Devices | PC |
| Connectivity Technology | USB |
| Power Source | DC power supply or AC adapter |
| Switch Type | Membrane |
| Keyboard Layout | QWERTY |
| Hand Orientation | Ambidextrous |
| Button Quantity | 20 |
| Number of Keys | 20 |
| Style Name | Contemporary |
| Enclosure Material | Acrylonitrile Butadiene Styrene |
| Brand | daier |
| Keyboard Description | Membrane |
| Built-In Media | Inc |
| Model Number | A572 |
| Unit Count | 4 Count |
| Manufacturer | daier |
| Number of Items | 4 |
| Mfr Part Number | A572 |
| Style | Contemporary |
| Material | Acrylonitrile Butadiene Styrene |
| Included Components | Inc |
| Keyboard layout | QWERTY |
| Item Weight | 0.2 lbs (90 grams) |
Who Should Buy?
-
Arduino Enthusiasts
Perfect for developers wanting to create interactive projects with easy input methods using Arduino microcontrollers.
-
DIY Projects
Ideal for hobbyists needing a reliable keypad for home automation or custom electronic creations.
-
Learning Purposes
Great for students and educators looking for practical components to learn about electronics and coding.
-
Professional Applications
Not suitable for high-end industrial applications requiring durable and robust keypad interfaces.
제품 설명
4Pcs 4x5 Keys Matrix Array 20 Key Keypad Membrane Switch Control Panel for Arduino
질문이 있으십니까? 채팅하기
고객 질문 및 답변
-
의문:
What is a 4x5 keys matrix array keypad?
답변: A 4x5 keys matrix array keypad is a type of input device that consists of 20 individual keys arranged in a grid format, allowing for efficient space and wiring management. This design enables multiple key presses to be registered using fewer input pins than separate connections for each key. It’s particularly useful in projects requiring numeric input or control functions, such as Arduino projects, smart appliances, and robotics. -
의문:
How do I connect a 4x5 matrix keypad to an Arduino?
답변: To connect a 4x5 matrix keypad to an Arduino, you will typically connect the rows and columns of the keypad to the digital pins on the Arduino. Use a library like Keypad for easy handling of inputs. This setup allows the Arduino to read which key is pressed by scanning through rows and columns. This is an excellent method for creating user interfaces and control panels in electronics projects. -
의문:
Can I use this keypad for gaming applications?
답변: Yes, the 4x5 matrix keypad can be effectively used in gaming applications. By programming the Arduino to recognize specific key presses as game controls, you can create a custom gaming interface tailored to your needs. This is perfect for projects like DIY arcade systems or handheld gaming consoles, where space efficiency and immediate access to controls are crucial. -
의문:
Is it compatible with other microcontrollers besides Arduino?
답변: Absolutely! The 4x5 matrix keypad is compatible with various microcontrollers like Raspberry Pi, ESP8266, and others. You may need to adjust the wiring and possibly modify your code, but the basic principle of scanning through rows and columns remains the same. This versatility makes it ideal for multiple projects across different platforms, from DIY electronics to smart home systems. -
의문:
What are some practical applications for the keypad?
답변: The 4x5 keypad is widely used in various applications, including security systems, home automation controls, and numerical entry systems. For instance, you can use it as a user interface for entering codes in alarm systems or as a remote control for smart appliances. Additionally, it can serve educational purposes in programming classes for teaching students about input handling in coding. -
의문:
How does the membrane switch work?
답변: The membrane switch works through layers of flexible material and conductive traces that complete a circuit when pressed. Each key has a designated circuit that the controller detects when activated. This technology is beneficial for its low profile and sealed design, making it ideal for applications where durability and cleanliness are essential, such as in industrial controls and consumer electronics. -
의문:
How durable is the keypad's membrane?
답변: The membrane of the 4x5 matrix keypad is designed to be durable and resist wear from regular use. It typically features a protective layer that guards against dust, moisture, and abrasion, thus maintaining its functionality over time. This durability makes it suitable for applications in harsh environments, such as manufacturing or outdoor installations. -
의문:
Can I create a custom keypad layout?
답변: Yes, you can create a custom layout for the 4x5 matrix keypad using the Arduino or other microcontrollers. By reassigning the key codes in your programming, you can change which keys trigger certain functions or inputs. This flexibility allows developers to tailor the keypad layout to specific applications, enhancing user experience and accessibility. -
의문:
What makes this keypad more efficient than traditional buttons?
답변: The 4x5 matrix keypad offers significant efficiency compared to traditional buttons by reducing the number of input pins required for multiple keys. This allows for a compact design and simplifies wiring in circuits, which is especially useful in space-constrained projects. Additionally, the tactile feedback from the membrane can improve usability in interactive applications. -
의문:
Where can I buy 4Pcs 4x5 Keys Matrix Array 20 Key Keypad Membrane Switch Control Panel for Arduino?
답변: You can purchase the 4Pcs 4x5 Keys Matrix Array 20 Key Keypad Membrane Switch Control Panel for Arduino at Ubuy, a reliable online shopping platform that offers a wide range of electronic components and accessories. They provide swift access to various products, making it easy to find what you need for your projects.
daier Access-Control Keypads A572 Editorial Review
편집 리뷰가 없습니다.
Customer Reviews & Ratings
1 고객 평가
-
5 점
0%
-
4 점
100%
-
3 점
0%
-
2 점
0%
-
1 점
0%
이 제품 리뷰하기
다른 고객들과 의견을 공유하세요.
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
AG
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
O
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
보안 결제
Global Delivery
Easy Returns
Genuine Products
Product Price History
중요 정보
- 제한 사항: 국제 배송되는 제품의 경우 제조업체 보증이 유효하지 않을 수 있으며, 제조업체 서비스 옵션을 사용하지 못하거나 제품 설명서, 지침 및 안전 경고가 대상 국가 언어로 표시되지 않을 수 있으며, 제품(및 첨부 자료)은 도착 국가 표준, 사양 및 라벨링 요구 사항에 따라 설계되지 않을 수 있으며, 제품은 목적지 국가 전압 및 기타 전기 표준을 준수하지 않을 수 있습니다(가능한 경우 어댑터 또는 변환기 사용 필요). 수령인은 제품을 도착 국가로 합법적으로 수입할 수 있는지 확인할 책임이 있습니다. Ubuy 또는 그 제휴사에서 주문할 때, 수령인은 기록 수입자로서 도착 국가의 모든 법률과 규정을 준수해야 합니다.
- Ubuy는 글로벌 검색 엔진이므로 Ubuy에 나열된 모든 제품이 판매용은 아닙니다. 제품은 수출/무역 규정을 따릅니다.
KRW 24495
지금 주문하시면 도착 예정일 Monday, 9월 21
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
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
특징 및 장점
- Includes 4 pieces of 4x5 keys matrix array keypads.
- Ideal for Arduino control panel projects.
- High insulation resistance of 100M Ω at 100V.
- Withstands voltage up to 250V Rms.
- Operates in a wide temperature range of +15℃ to +35℃.
- Suitable for storage in humidity levels of 70% to 90%.
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.