The Collision Switch Module is used to detect a collision with an object or to detect the limit of travel.
- Collision Switch Module
KEY FEATURES OF COLLISION SWITCH MODULE:
- Detect collisions with an object on robotic vehicles
- Use as travel limit switch on 3D printers and similar applications
- LED Lights when switch is engaged
- Compatible with 3.3 and 5V logic
This switch module is often called a collision or crash switch, as it is sometimes used to detect when a robotic vehicle makes contact with an object. They are also used as limit switches to detect when something such as a 3D printer head has reached the limit of its travel.
The module mounts a small microswitch with a lever. The output is normally held HIGH via a 10K pull-up resistor on the module. When the switch lever is depressed, the output is pulled to ground and goes LOW and the LED on the module lights.
The switch body is rated for up to 2A @ 125VAC, but the module is designed to switch logic level signals.
- OUT = Output is normally HIGH. The output goes LOW when switch is depressed
- VCC = Power. Typically kept at 3.3 or 5V to match the MCU it is used with
- GND = Ground which should be common with the MCU.
The module has one M3 hole for mounting.
OUR EVALUATION RESULTS:
Build quality is good on these modules.
The single mounting hole may allow the module to rotate when impacted, so mounting should take this into consideration and ensure a rotation stop is provided if necessary for the application
BEFORE THEY ARE SHIPPED, THESE MODULES ARE:
- Sample inspected per incoming shipment
|Operating Ratings||Vcc Range||3.3 – 5V (typical)|
|Logic high||Pulled to Vcc via 10K pull-up|
|Logic Low||Pulled to ground by switch closure|
|Dimensions||L x W (PCB)||19mm x 14mm (0.75 x 0.55″)|
|L x W (w/ switch not including lever)||25mm x 14mm (1.0 x 0.55″)|
|Lever travel for switch contact||2.5mm typical|