- Home Page /
- Electronics /
- Computer Accessories /
- Computer Accessories & Peripherals /
- Input Devices /
- Numeric Keypads /
- LONELY BINARY 2-Pack 4x4 Matrix Keypad + I2C ...
0 ratings
Item #:
219401558
LONELY BINARY 2-Pack 4x4 Matrix Keypad + I2C Adapter for Arduino IDE
86% of respondents would recommend this to a friend
Item #:
219401558
IMP 28
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Friday, November 13
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
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 V-120 V). Recommended power converters Buy Now.
Product Details
| Compatible Devices | Arduino Uno, Arduino Mega, Arduino Nano, ESP32-S3 development boards, ESP32, ESP8266, Raspberry Pi (4B, 3B+, Zero, Pico), STM32 boards, MicroPython-compatible boards, I2C-enabled microcontrollers, embedded systems and IoT development platforms |
| Connectivity Technology | I2C |
| Additional Features | Built-in I2C interface simplifies wiring and reduces pin usage to just SDA and SCL. Includes a dual keypad set (2-pack), ideal for multi-device or expandable projects., Compact and lightweight design with breadboard-compatible headers for easy soldering and quick setup. Supports both 3.3V and 5V systems with stable, noise-resistant signal performance. Plug-and-play compatibility with widely available libraries, perfect for Arduino, ESP32, Raspberry Pi, and other IoT or embedded applications., Designed to save GPIO pins while supporting multiple devices on the same I2C bus. Durable membrane keys provide long lifespan with responsive tactile feedback and low contact resistance (<100u03a9). |
| Switch Type | Tactile |
| Keyboard Layout | QWERTY |
| Hand Orientation | Ambidextrous |
| Compatible Operating System Family | Linux |
| Number of Keys | 16 |
| Processor Count | 1 |
| Style Name | Dual 4x4 I2C Matrix Keypad (Heavy Duty, 2-Pack) |
| Item Dimensions L x W x H | 2.72"L x 2.72"W x 0.38"H (6.9 x 6.9 x 1 cm) |
| Enclosure Material | Flexible Membrane (PET) with PCB and Electronic Components |
| Brand | LONELY BINARY |
| Keyboard Description | Molded ABS Frame with Raised Tactile Keys |
| Antenna Location | Arduino projects, ESP32-S3 development, Raspberry Pi interfaces, IoT automation projects, smart home control panels, DIY electronics prototyping, embedded systems development, robotics control input, microcontroller-based interfaces, sensor control systems, breadboard prototyping setups, Home security systems, electronic door locks, keypad entry systems, alarm control panels, access control systems, password input devices, PIN-based access systems, digital safes, vending machines, attendance systems, electronic voting systems, Industrial control panels, automation interfaces, menu navigation systems, interactive user input systems, custom control consoles, data entry panels, user authentication systems, prototype hardware interfaces, lab testing setups, engineering training projects, STEM education kits, classroom electronics learning, maker projects, hobby electronics projects |
| Built-In Media | 2x Lonely Binary Heavy Duty 4x4 Matrix Keypad, 2x Lonely Binary I2C Adapters |
| Model Number | I2C Matrix Keypad Kit |
| Model Name | I2C 4u00d74 Matrix Keypad (2-Pack) |
| Item Highlight | 8 pins down to 2 over I2C | 2 keypads + 2 adapters | addresses 0x20-0x27 | works with ESP32, Raspberry Pi Pico, STM32 |
| Unit Count | 2 Count |
| Manufacturer | Lonely Binary |
| Number of Packs | 2 |
| Number of Items | 2 |
| Compatible Devices | Arduino Uno, Arduino Mega, Arduino Nano, ESP32-S3 development boards, ESP32, ESP8266, Raspberry Pi (4B, 3B+, Zero, Pico), STM32 boards, MicroPython-compatible boards, I2C-enabled microcontrollers, embedded systems and IoT development platforms See more |
| Recommended Uses For Product | Arduino projects, ESP32-S3 development, Raspberry Pi interfaces, IoT automation projects, smart home control panels, DIY electronics prototyping, embedded systems development, robotics control input, microcontroller-based interfaces, sensor control systems, breadboard prototyping setups, Home security systems, electronic door locks, keypad entry systems, alarm control panels, access control systems, password input devices, PIN-based access systems, digital safes, vending machines, attendance systems, electronic voting systems, Industrial control panels, automation interfaces, menu navigation systems, interactive user input systems, custom control consoles, data entry panels, user authentication systems, prototype hardware interfaces, lab testing setups, engineering training projects, STEM education kits, classroom electronics learning, maker projects, hobby electronics projects See more |
| Special Feature | Built-in I2C interface simplifies wiring and reduces pin usage to just SDA and SCL. Includes a dual keypad set (2-pack), ideal for multi-device or expandable projects., Compact and lightweight design with breadboard-compatible headers for easy soldering and quick setup. Supports both 3.3V and 5V systems with stable, noise-resistant signal performance. Plug-and-play compatibility with widely available libraries, perfect for Arduino, ESP32, Raspberry Pi, and other IoT or embedded applications., Designed to save GPIO pins while supporting multiple devices on the same I2C bus. Durable membrane keys provide long lifespan with responsive tactile feedback and low contact resistance (<100u03a9). See more |
| Style | Dual 4x4 I2C Matrix Keypad (Heavy Duty, 2-Pack) |
| Product Dimensions (L x W x H) | 2.72"L x 2.72"W x 0.38"H (6.9 x 6.9 x 1 cm) |
| Material | Flexible Membrane (PET) with PCB and Electronic Components |
| Included Components | 2x Lonely Binary Heavy Duty 4x4 Matrix Keypad, 2x Lonely Binary I2C Adapters |
Product Description
LONELY BINARY 2-Pack 4x4 Matrix Keypad + I2C Adapter for Arduino IDE
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
How to Shop LONELY BINARY 2-Pack 4x4 Matrix Keypad + I2C Adapter Online From Ubuy?
Answer: It’s easy to shop LONELY BINARY 2-Pack 4x4 Matrix Keypad + I2C Adapter 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 LONELY BINARY 2-Pack 4x4 Matrix Keypad + I2C Adapter Available to Shop Online in Isle of Man?
Answer: Yes, at Ubuy Isle of Man this product is available for you to shop at a reasonable price. The LONELY BINARY 2-Pack 4x4 Matrix Keypad + I2C Adapter 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.
LONELY BINARY Numeric Keypads I2C Matrix Keypad Kit Editorial Review
No editorial reviews found
Customer Reviews & Ratings
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
Platform Trust & Buyer Confidence
FK
Fatuma
Verified buyer
“My experience was great I really liked the fact that i get my order delivered within the days promised. The packaging , the product, shipment everything was so good, trustworthy and fast. Definitely will shop again”
28 October 2026 · via Trustpilot
JC
Jane
Verified buyer
“Very easy to order. The product was good quality. The delivery service was excellent, updates given so you knew what was happening.”
30 October 2026 · via Trustpilot
R
Roman
Verified buyer
“Good experience The product I ordered came as expected. What most impressed me in dealing with Ubuy is the communication and updates I received through the process. I knew exactly where and when my item was at all times until delivery. Well done!”
31 October 2026 · via Trustpilot
SH
SJ Hong
Verified buyer
“The package came very quickly and the shipping fee was extremely reasonable! Overall, the service as well as my experience of ordering from Ubuy was a very pleasant experience! Thank you so much!”
31 October 2026 · via Trustpilot
SH
Szilvia
Verified buyer
“Great service. Ordered an item coming from the USA which wasn't available in Ireland or even for delivery from the retailer and it had arrived within a few days. Very happy with the product and the service.”
31 October 2026 · via Trustpilot
WHY SHOP WITH US
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
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.
IMP 28
Order now and get it around Friday, November 13
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
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.