What is a 3x4 Matrix Keypad?

A 3x4 Matrix Keypad is a type of input device that consists of 12 buttons arranged in a grid of three columns and four rows. Each keypress is detected using a matrix scanning technique, allowing for more compact designs. This keypad is commonly used with microcontrollers for projects where user input is required, such as home automation systems or payment terminals. Its straightforward design makes it an essential component for hobbyists and professionals alike.

How do I connect the 3x4 Matrix Keypad to a microcontroller?

Connecting a 3x4 Matrix Keypad to a microcontroller typically involves connecting the keypad's rows and columns to specific GPIO pins on the microcontroller. You would set up your microcontroller's code to read the keypad's input by scanning the rows and columns to identify which key is pressed. This connection process is essential for integrating the keypad in projects like robotic controls or remote data input, enhancing user interaction.

What type of projects can I use the 3x4 Matrix Keypad for?

The 3x4 Matrix Keypad is versatile and can be used in various projects such as security systems, home automation, and interactive displays. For instance, you can create a door lock system that requires a PIN input or a simple calculator project. Its adaptability makes it an ideal component for educational purposes in electronics and programming, enabling hands-on learning in robotics and automation.

Is the 3x4 Matrix Keypad compatible with Arduino?

Yes, the 3x4 Matrix Keypad is highly compatible with Arduino boards, making it a popular choice for DIY electronics enthusiasts. There are libraries available that simplify the coding process, allowing for quick integration into Arduino projects. This compatibility opens doors to a multitude of applications, such as building a custom user interface for your Arduino-based project.

What is the voltage requirement for the keypad?

The 3x4 Matrix Keypad typically operates at a voltage range of 3.3V to 5V, which aligns with most microcontrollers. Ensuring the voltage is within this range is crucial for optimal performance. This feature enables its use in a variety of low-power applications, such as battery-operated devices or wearables.

Can I use this keypad with other microcontroller platforms?

Absolutely! The 3x4 Matrix Keypad can be used with various microcontroller platforms such as Raspberry Pi, PIC, and others. Adaptors or interface modules may be needed depending on the platform, but its universal design makes it a great option for multi-platform compatibility. This flexibility allows developers to work across different environments while maintaining a consistent user interface.

What materials is the keypad made of?

The 3x4 Matrix Keypad is generally constructed from durable plastic for the keys and a flexible printed circuit for the connections. This construction ensures longevity and reliable performance under frequent use. The design also makes it lightweight, which is essential for integrating into compact electronic projects without adding unnecessary weight.

How does the matrix scanning technique work?

The matrix scanning technique used in the 3x4 Matrix Keypad involves energizing one row or column at a time, allowing the microcontroller to detect which key is pressed by checking the corresponding row and column lines. This method reduces the number of input pins required, streamlining connections. It is particularly useful in applications where space is limited and multiple inputs are needed with minimal wiring.

Is it possible to customize the key layout?

While the standard layout of the 3x4 Matrix Keypad features numerical keys, you can customize the physical layout by reassigning the pins in your microcontroller code. This customization allows you to create specific inputs for your projects, such as personalized function keys for advanced applications in industrial controls or unique user interfaces.

Je 2PCS 3x4 Matrix Keypad 12 Keyboard Module External k dispozici pro online nákup v Czech Republic?

Ano, na Ubuy Czech Republic je tento produkt k dispozici k nákupu za rozumnou cenu.. 2PCS 3x4 Matrix Keypad 12 Keyboard Module External není místně dostupné, ale můžete nám důvěřovat s našimi expresními přepravními službami.

Jak dlouho trvá získání produktu po zadání objednávky?

Dodací lhůta vámi objednaného produktu se liší podle toho, co jste si objednali a způsobu dopravy, který jste si vybrali.. Předpokládaná doba doručení je uvedena během procesu pokladny, takže při nakupování buďte bezstarostní.

SazkJere Zobrazit originál

2PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (3x4 Key)

The keyboard matrix allows you to quickly add controls to your electronic projects.

SazkJere

Položka č.: 220387865

2PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (3x4 Key)

Q: Where can I buy 2PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller in Czech Republic?

You can purchase the 2PCS 3x4 Matrix Keypad 12 Keyboard Module from Ubuy in Czech Republic. Ubuy provides a wide selection of electronic components, ensuring you can find the right products for your projects. Their platform offers easy navigation and reliable service, making it a go-to option for sourcing components needed for your electronics tasks.

81% of respondents would recommend this to a friend

Položka č.: 220387865

CZK 430

Price Details

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

^{*All items will import from USA}

Dostupnost : Na skladě

Importováno z obchodu USA

QTY:

Objednejte nyní a položka bude u vás okolo Úterý, září 22

Secured transaction

Our Top Logistics Partners

The keyboard matrix allows you to quickly add controls to your electronic projects.

Záruka U-Care:

Žádný

Vyberte plán

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 USA store (110-120). Recommended power converters Koupit teď.

What Stands Out

Compact Design

The 4x4 matrix keypad features a compact design, making it easy to integrate into various electronic projects and microcontroller applications without taking up much space.

Versatile Compatibility

This keypad module is compatible with multiple microcontrollers, such as Arduino and Raspberry Pi, simplifying the process of adding user input capabilities to your projects.

Durable Build

Constructed from high-quality materials, this keypad ensures longevity and reliability, providing consistent performance over time even in demanding environments.

Detaily produktu

Compatible Devices	PC
Connectivity Technology	USB-A
Additional Features	Lightweight
Power Source	USB Powered
Hand Orientation	Ambidextrous
Compatible Operating System Family	Windows
Number of Keys	12
Style Name	12Key
Theme	Number
Enclosure Material	Plastic
Brand	SazkJere
Keyboard Description	Number Pad
Antenna Location	Office
Built-In Media	2PCS Matrix Keypad
Model Number	3x4 key
Unit Count	2 Count
Manufacturer	SazkJere
Number of Packs	2
Number of Items	2
Mfr Part Number	SJ64X4
Recommended Uses For Product	Office
Special Feature	Lightweight
Style	12Key
Material	Plastic
Included Components	2PCS Matrix Keypad
Item Weight	0.1 lbs (50 grams)

Who Should Buy?

Microcontroller Projects
Ideal for hobbyists building Arduino or Raspberry Pi projects requiring user input through a keypad.
Educational Purposes
Great for students learning about electronics and programming, offering hands-on experience with input devices.
DIY Electronics
Perfect for DIY enthusiasts creating custom devices needing a compact input method for commands.

Complex Applications
Not suitable for advanced projects requiring detailed data entry or complex user interfaces beyond simple numeric input.

POPIS PRODUKTU

2PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (3x4 Key)

Máte nějaký dotaz? Napi

Otázky a odpovědi zákazníků

otázka: Jak nakupovat 2PCS 3x4 Matrix Keypad 12 Keyboard Module External online z Ubuy?

Odpovědět: Nakupovat 2PCS 3x4 Matrix Keypad 12 Keyboard Module External online z Ubuy je snadné.. Stačí si produkt vyhledat, vybrat způsob dopravy při placení a nechat si jej doručit na místo.
otázka: Je 2PCS 3x4 Matrix Keypad 12 Keyboard Module External k dispozici pro online nákup v Czech Republic?

Odpovědět: Ano, na Ubuy Czech Republic je tento produkt k dispozici k nákupu za rozumnou cenu.. 2PCS 3x4 Matrix Keypad 12 Keyboard Module External není místně dostupné, ale můžete nám důvěřovat s našimi expresními přepravními službami.
otázka: Jak dlouho trvá získání produktu po zadání objednávky?

Odpovědět: Dodací lhůta vámi objednaného produktu se liší podle toho, co jste si objednali a způsobu dopravy, který jste si vybrali.. Předpokládaná doba doručení je uvedena během procesu pokladny, takže při nakupování buďte bezstarostní.

SazkJere Access-Control Keypads 3x4 key Editorial Review

Nebyly nalezeny žádné redakční recenze

Customer Reviews & Ratings

5.0

1 hodnocení zákazníků

5 hvězda

100%
4 hvězda

0%
3 hvězda

0%
2 hvězda

0%
1 hvězda

0%

Zrecenzovat tento produkt

Sdílejte své myšlenky s ostatními zákazníky

Product Price History

Důležitá informace

Omezení: U produktů zasílaných do zahraničí mějte na paměti, že jakákoli záruka výrobce nemusí být platná; servis poskytovaný výrobcem nemusí být k dispozici; návody, pokyny a bezpečnostní upozornění k produktům nemusí být v jazyku země doručení; produkty (a podpůrné materiály) nemusí být vytvořeny v souladu se standardy, specifikacemi a požadavky na označení platnými v zemi doručení; a produkty nemusí odpovídat standardnímu napětí a další elektrickým standardům (v konkrétních případech může být zapotřebí využít adaptér nebo převodník). Příjemce má odpovědnost přesvědčit se, že produkt je možné do země doručení legálně importovat. Při objednávání od společnosti Ubuy a jejích partnerů je příjemce odpovědným dovozcem a musí splnit všechny zákony a nařízení platné v zemi doručení.
Vzhledem k tomu, že Ubuy je celosvětový vyhledávač, nejsou všechny produkty, které zde najdete, na prodej. Produkty podléhají exportním/obchodním předpisům.

CZK 430

Objednejte nyní a položka bude u vás okolo Úterý, září 22

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

Služby a výhody

12-button matrix keyboard module with numeric keys and function buttons.
Easily integrates with any microcontroller for seamless communication.
Compact size of 7*5*1cm, lightweight at only 19g.
Ideal for applications like password security systems and automatic gate keypads.
Includes numbers 0-9, and standard symbols (*#).
Package includes 2 x 12 keys keypads for added value.

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.

2PCS 3x4 Matrix Keypad 12 Keyboard Module External Keypad Board for Microcontroller (3x4 Key)

CZK 430

Fast Shipping

Free Return*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

What Stands Out

Detaily produktu

Who Should Buy?

POPIS PRODUKTU

Otázky a odpovědi zákazníků

SazkJere Access-Control Keypads 3x4 key Editorial Review

Customer Reviews & Ratings

Zrecenzovat tento produkt

Product Price History

Důležitá informace

CZK 430

Služby a výhody

Ubuy Assurance

Fast
Shipping

Free
Return^*