Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | Q89 |
| Component Type | Collision Switch / Limit Sensor |
| Operating Voltage | 3.3V - 5V DC |
| Interface | Digital Output (DO) |
| Connector Type | Dupont Pin Header |
| Compatible Platforms | Arduino, Raspberry Pi, ESP32 |
| Material | PCB, Plastic Actuator |
| Dimensions | 24mm x 16mm x 10mm |
| Weight | 3.5 grams |
| Package Includes | 1x Q89 Module, 3x Dupont Lines |
Anonymous
Mar 28, 2026
Rating: 4/5
Good value, slightly stiff actuator
The sensor is reliable and detects collisions well. The only minor issue is that the switch button feels a bit stiff, requiring a firm push to trigger, but it hasn't affected performance.
Anonymous
Mar 22, 2026
Rating: 4/5
Solid component
Does exactly what it says on the tin. No documentation included in the box, but finding pinout diagrams online was trivial. Works great with 5V logic.
Anonymous
Mar 12, 2026
Rating: 5/5
Perfect for my obstacle avoidance robot
This Q89 module works flawlessly with my Arduino Uno. The detection range is consistent, and the Dupont lines made wiring incredibly easy. Highly recommended for beginner robotics projects.
Anonymous
Mar 11, 2026
Rating: 5/5
Reliable limit switch
Using this as a limit switch on a small CNC plotter. It triggers precisely every time. The compact size fits perfectly in tight spaces.
Anonymous
Mar 09, 2026
Rating: 5/5
Easy to use for beginners
I am new to electronics, and this module made adding collision detection to my car very simple. The included wires are a nice touch.
Anonymous
Mar 08, 2026
Rating: 5/5
Great educational tool
Bought this for my son's science project. It was easy to integrate into his code, and the build quality seems durable enough to withstand multiple test crashes.
Q: Does the output go HIGH or LOW when pressed?
A: By default, the output goes LOW when the switch is pressed (active low), assuming you are using the standard DO pin configuration.
Q: What is the maximum current this switch can handle?
A: The onboard switch is designed for signal-level applications. We recommend keeping the load under 50mA to ensure longevity and prevent damage.
Q: Can I use this underwater?
A: No, this module is not waterproof. It is intended for indoor use or protected environments only. Exposure to water will damage the electronics.
Q: Are the Dupont lines male-to-female or female-to-female?
A: The included Dupont lines are Female-to-Female, allowing you to connect the module directly to male header pins on your microcontroller.
Q: Is this module compatible with 3.3V microcontrollers like the ESP8266?
A: Yes, the Q89 module operates within a 3.3V to 5V range, making it fully compatible with ESP8266, ESP32, and standard 5V Arduinos.
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