Keszoox
1×4 Independent Key Button Keypad Module — 4-Key, 3.3V/5V, Arduino MCU (5-Pack)
1×4 Independent Key Button Keypad Module 4-Key, 3.3V/5V, Arduino MCU (5-Pack)
Regular price
$28.48 USD
Sale price
$28.48 USD
Unit price
per
Taxes included.
Shipping calculated at checkout.
Couldn't load pickup availability
1×4 Independent Key Button Keypad Module — 4-Key, 3.3V / 5V, Arduino MCU (5-Pack)
This 1×4 independent key button module provides 4 individual push-button inputs, each with its own digital output pin. Unlike matrix keypads, each key has a dedicated output line — no scanning required, no key ghosting, and direct connection to any GPIO pin. Operating at 3.3V or 5V, it is compatible with Arduino, ESP32, STM32, and Raspberry Pi. Supplied as a 5-pack.
Key Specifications
| Parameter | Value |
|---|---|
| Key Count | 4 independent keys |
| Output per Key | 1 dedicated digital output pin |
| Supply Voltage | 3.3V or 5V |
| Output Logic | LOW when pressed (active low, pull-up) |
| Connector | 5-pin 2.54mm header (VCC, GND, K1–K4) |
| Pack Quantity | 5 modules |
Why Choose Independent Key Module vs Matrix Keypad?
| Feature | Independent Key Module | Matrix Keypad |
|---|---|---|
| Wiring | 1 pin per key (simple) | Row + column scanning |
| Key Ghosting | None | Possible |
| Code Complexity | Simple digitalRead() | Requires scanning library |
| Best For | Menu navigation, simple input | Full alphanumeric input |
Why Choose This Module?
- ✅ No scanning required — read each key with a simple
digitalRead() - ✅ 3.3V / 5V compatible — works with Arduino, ESP32, STM32, Raspberry Pi
- ✅ No key ghosting — independent outputs, simultaneous key presses supported
- ✅ 5-pack value — stock for multiple projects
Typical Applications
- Arduino menu navigation (up/down/select/back)
- Input selection and mode switching
- Game controller button input
- Industrial HMI button panel
- Embedded system user interface
Package Contents
- 5 × 1×4 Independent Key Button Keypad Module
