DFRobot
Crash sensor (Left)
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A compact crash sensor (left-side variant) based on a miniature snap-action micro switch with roller lever. Designed for Arduino and compatible microcontroll...
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A compact crash sensor (left-side variant) based on a miniature snap-action micro switch with roller lever. Designed for Arduino and compatible microcontrollers, this sensor module includes an onboard pull-up resistor and status indicator LED for easy testing and integration. The roller lever design makes it suitable for a variety of contact-detection applications.
Key Features
- Micro Switch with Roller Lever – Snap-action switch actuated by minimal physical force
- Onboard LED Indicator – Visual feedback of switch state for easy debugging
- Built-In Pull-Up Resistor – Simplified wiring with digital output ready to read
- Gravity Compatible – Connects directly to DFRobot IO Expansion Shield for Arduino
- Dual Mounting Holes – Two M3 holes for secure installation
Specifications
- Operating Voltage – 5 V
- Output – Digital
- Pinout – Digital output, VCC, GND
- Dimensions – 30 × 20 × 8 mm
- Mounting – 2× M3 holes
- Variant – Left
Ideal For
- 3D printer endstop and position feedback
- Robotics collision detection
- Limit switches for CNC and automation
- Door and panel interlock sensing
Package Contents
- 1× Crash Sensor (Left)
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- Shield
- An add-on board that plugs into a main controller board to give it extra features such as sensing, motor control or communication. Knowing a product supports shields helps you judge whether it can connect neatly into an existing maker-board setup.
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