Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Sensor Type	Mechanical Bump Switch
Operating Voltage	3.3V - 5V DC
Interface Protocol	Digital I/O
Compatibility	Standard Electronic Building Blocks
Detection Range	0mm (Physical Contact)
Response Time	< 10ms
Mounting Style	Snap-fit Module
LED Indicator	Yes, Status Light
Material	ABS Plastic & Copper Alloy
Package Weight	15 grams

6 reviews

Anonymous

Mar 30, 2026

Rating: 4/5

Reliable but sensitive

The module works great for detecting walls. It is quite sensitive, which is good for safety, but you might need to adjust your code debouncing logic slightly.

Anonymous

Mar 22, 2026

Rating: 5/5

Excellent value for money

For the price, you get a robust microcontroller unit interface and a durable switch. It simplified my autonomous rover project significantly.

Anonymous

Mar 22, 2026

Rating: 5/5

Sturdy construction

We use these in our workshop for student projects. They have survived countless crashes and still function perfectly. The electrical contacts are gold-plated and reliable.

Anonymous

Mar 19, 2026

Rating: 5/5

Perfect for obstacle avoidance robots

This collision sensor integrates seamlessly with my custom robot chassis. The snap-fit design makes it incredibly easy to swap positions during prototyping. Highly recommended for beginners.

Anonymous

Mar 15, 2026

Rating: 5/5

Great educational tool

Bought this for my son's science project. The building block format makes it fun to assemble, and the sensor responds instantly when the robot hits an object.

Anonymous

Mar 03, 2026

Rating: 3/5

Good but needs specific brackets

The sensor itself works fine, but I wish it came with more variety in mounting brackets for non-standard frames. Had to 3D print an adapter.

5 FAQ

Q: How do I reset the sensor if it gets stuck?

A: The mechanical design allows the switch to reset automatically once the pressure is released. No manual reset is required.

Q: Is this compatible with Arduino boards?

A: Yes, this module outputs a standard digital signal that can be easily read by Arduino, Raspberry Pi, or any MCU with GPIO pins.

Q: What is the maximum current rating for the switch?

A: The internal bump switch is rated for up to 50mA at 5V, which is sufficient for signaling purposes but not for driving motors directly.

Q: Does the package include connecting wires?

A: The module features built-in conductive connectors for the building block system, so no separate wires are needed for standard setups.

Q: Can I use this outdoors?

A: While the module is durable, it is not water-resistant. We recommend using it in dry indoor environments or protecting it with an enclosure if used outside.

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