{"title":"Crash sensor (Left)","handle":"crash-sensor-left","url":"/products/crash-sensor-left","description":"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.\n\nKey Features\n\n\nMicro Switch with Roller Lever – Snap-action switch actuated by minimal physical force\n\nOnboard LED Indicator – Visual feedback of switch state for easy debugging\n\nBuilt-In Pull-Up Resistor – Simplified wiring with digital output ready to read\n\nGravity Compatible – Connects directly to DFRobot IO Expansion Shield for Arduino\n\nDual Mounting Holes – Two M3 holes for secure installation\n\n\nSpecifications\n\n\nOperating Voltage – 5 V\n\nOutput – Digital\n\nPinout – Digital output, VCC, GND\n\nDimensions – 30 × 20 × 8 mm\n\nMounting – 2× M3 holes\n\nVariant – Left\n\n\nIdeal For\n\n3D printer endstop and position feedback\nRobotics collision detection\nLimit switches for CNC and automation\nDoor and panel interlock sensing\n\n\nPackage Contents\n\n1× Crash Sensor (Left)\n\n\nResources\n\nDFRobot Wiki\nSchematic\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":10248,"title":"Default Title","sku":"DF-SEN0138-L","price":2.0,"compare_at_price":4.14,"on_sale":true,"in_stock":true,"available_quantity":23,"option1":"Default Title"}]}