The Crash Sensor - YL-99 is a highly responsive physical impact detection module designed for robotics, smart vehicle navigation, and structural limit-switch hardware configurations. Centered around a durable, long-arm mechanical miniature snap-action switch, it utilizes crisp physical lever mechanics to register real-time physical collisions immediately. This solid-state hardware breakout eliminates false signal triggers often associated with basic tilt or vibration sensors, providing a highly reliable and definitive digital output on contact. Built with a compact 3-pin interface footprint, on-board signal filtration, and a localized visual indicator, it serves as an essential, zero-fuss hardware-level obstacle detection barrier for autonomous rovers, smart quadcopters, and 3D printer home alignment axes.
Overview:
The Crash Sensor - YL-99 provides an accessible, tactile, and highly versatile physical mapping solution for makers, hobbyists, and rapid prototyping applications. Traditional contactless sensors—such as infrared proximity modules or ultrasonic range trackers—suffer from performance bottlenecks when facing complex surface textures, direct sunlight glare, or sound-absorbing obstacles; this mechanical collision board bypasses those physical constraints entirely by executing triggers via absolute physical contact. The board features an internal circuit design that outputs a default HIGH logic signal during normal navigation, dropping sharply to a clean LOW digital level the instant the metal roller lever makes structural contact with a perimeter block or barrier. Outfitted with an integrated pull-up resistor framework, it interfaces directly with 3.3V and 5V microcontrollers like Arduino, Raspberry Pi, or ESP32 architectures without requiring external breadboard routing networks. Whether you are coding an autonomous maze-solving robot, designing a safety limit cutoff circuit, or building an edge-detection safety array, this compact module ensures clean, debounced mechanical feedback.
Features:
- High-Precision Mechanical Snap Core: Outfitted with a premium long-lever miniature microswitch for definitive, snap-action physical collision profiling.
- Integrated Visual Trigger LED: Features an on-board indicator light that illuminates instantly when a mechanical collision occurs, simplifying real-time system debugging.
- Universal Microcontroller Compatibility: Dual-voltage architecture operates seamlessly across 3.3V and 5V logic structures, protecting delicate developer GPIO pins.
- Clean Solderless 3-Pin Interface: Standard header connection pins (VCC, GND, and Signal OUT) allow immediate, plug-and-play wiring loops via jumper lines.
- Built-In Pulldown/Pull-up Network: Eliminates floating signal lines out of the box, ensuring stable, noise-filtered square-wave transitions straight to your code.
- Zero-Contact Wear Longevity: High-grade internal spring leaf contacts withstand heavy repeated impact cycles without physical fatigue or contact dropping.
- Pre-Drilled Chassis Mounting Holes: Standardized structural anchor dimensions allow secure, flush mounting onto multi-layer robotics chassis panels.
- Immune to Ambient Lighting Interference: Operates strictly via mechanical displacement, making it entirely unaffected by outdoor sunlight glare, shadows, or reflective objects.
Specification:
- Module Model Type: Mechanical Proximity Switch / Impact Collision Sensing Unit
- Core Breakout IC/Sensor: YL-99 Snap-Action Roller-Arm Microswitch
- Input Supply Voltage Range: 3.3V to 5V DC
- Output Signal Logic: Digital Level Output (Default HIGH / Active LOW upon impact cutoff)
- Operating Current Draw: Ultra-low consumption (~3mA under active execution)
- Terminal Termination Style: 3-Pin Right-Angle Male Header Pins (2.54mm Standard Pitch spacing)
- Board Core Compound: High-grade dual-layer FR4 fiberglass substrate PCB
- Dimensions Profile: Approximately 25mm × 14mm × 11mm
- Net Component Weight: ~3.5 g
Instant Tactile Collision Recognition
Take absolute control of your robot's physical perimeter boundaries without bloating your software logic layer. By shifting away from reflective optical components to this physical long-lever mechanical module, your navigation loop registers edge cutoffs instantly through direct hardware displacement, accelerating rapid prototyping assembly chains.
Optimized for Multi-Platform Project Interfacing
— Engineering focused on universal development simplicity. The multi-voltage 3.3V/5V configuration lets you link this collision node straight into diverse systems—such as 3.3V ARM modules, 5V microcontrollers, or single-board compute arrays—protecting sensitive internal loops from floating signal spikes.
Rugged Construction Tailored for Autonomous Driving
- Reliable environmental feedback that is built to handle frequent usage cycles. Combining a tough impact-resistant fiberglass board layer with specialized internal voltage smoothing and a built-in pull-up matrix, this YL-99 board withstands aggressive obstacle impact spikes without dropping telemetry signals.
Package includes:
- 1 x Crash Sensor - YL-99 Impact Collision Switch Module
