Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Number of Keys | 4 |
| Switch Type | Tactile Microswitch |
| Interface | GPIO / IO Expansion |
| Operating Voltage | 3.3V - 5V DC |
| Material | FR-4 PCB, Plastic Buttons |
| Mounting Type | Through-hole / Pin Header |
| Dimensions | 45mm x 25mm x 12mm |
| Compatibility | Arduino, STM32, ESP32, Raspberry Pi |
| Application | MCU Development, DIY Electronics, Prototyping |
| Package Includes | 1x 4-Key Module, 1x Pin Header Set |
Anonymous
Mar 28, 2026
Rating: 4/5
Good value for learning
Great little board for my university embedded systems project. Works flawlessly with Arduino Uno. Only wish it came with a longer cable, but that's a minor issue.
Anonymous
Mar 25, 2026
Rating: 5/5
Excellent for IO expansion
Used this to add user input to a robot controller. The response time is instant and there is no debounce issues when using standard libraries.
Anonymous
Mar 20, 2026
Rating: 5/5
Perfect for quick prototyping
This module saved me a lot of time soldering individual switches. The tactile feel is crisp and the pin layout is standard enough to fit right onto my breadboard.
Anonymous
Mar 15, 2026
Rating: 4/5
Solid basic module
Does exactly what it says on the tin. The PCB is clean and the soldering points are well-defined. Took off one star because the silkscreen is a bit faint.
Anonymous
Mar 08, 2026
Rating: 5/5
Sturdy construction
We bought ten of these for our workshop. The build quality is consistent across all units, and the buttons have a nice click without being too loud.
Anonymous
Mar 07, 2026
Rating: 5/5
Plug and play
No drivers needed, just connect to GPIO pins and write a simple script. Ideal for menu navigation in DIY instruments.
Q: Does the package include the pin headers?
A: Yes, the package includes a set of male pin headers that you can solder onto the board for easy breadboard integration.
Q: Are there any built-in pull-up resistors on the board?
A: No, this board does not have built-in pull-up or pull-down resistors. You should enable internal pull-ups in your code or add external resistors as needed.
Q: Is this module compatible with 3.3V logic levels?
A: Yes, this module operates comfortably within the 3.3V to 5V DC range, making it suitable for both 3.3V and 5V microcontrollers.
Q: Can I use this with a Raspberry Pi Pico?
A: Absolutely. Since the Pico supports 3.3V logic and has accessible GPIO pins, this module connects directly without any level shifters.
Q: What is the current rating for each switch?
A: Each tactile microswitch is rated for approximately 50mA at 12V DC, which is more than sufficient for signal input to an MCU.
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