--- product_id: 303110746 title: "Collision Sensor/Micro Snap Switch/Limit Module Compatible with Raspberry Pi and Arduino Board. for Smart Homes, Offices, 3D Printer and Teaching Interact with Robots." brand: "pzsmocn" price: "E£ 1683" currency: EGP in_stock: true reviews_count: 7 url: https://www.desertcart.com.eg/products/303110746-collision-sensor-micro-snap-switch-limit-module-compatible-with-raspberry store_origin: EG region: Egypt --- # 210mm wire length JST-3P socket Micro switch actuation Collision Sensor/Micro Snap Switch/Limit Module Compatible with Raspberry Pi and Arduino Board. for Smart Homes, Offices, 3D Printer and Teaching Interact with Robots. **Brand:** pzsmocn **Price:** E£ 1683 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate Your Projects with Precision and Ease! ## Quick Answers - **What is this?** Collision Sensor/Micro Snap Switch/Limit Module Compatible with Raspberry Pi and Arduino Board. for Smart Homes, Offices, 3D Printer and Teaching Interact with Robots. by pzsmocn - **How much does it cost?** E£ 1683 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/303110746-collision-sensor-micro-snap-switch-limit-module-compatible-with-raspberry) ## Best For - pzsmocn enthusiasts ## Why This Product - Trusted pzsmocn brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Educational Tool:** Perfect for teaching robotics and electronics in an interactive way. - • **Precision Activation:** Micro limit switch responds to minimal force, ensuring reliable performance. - • **Seamless Integration:** Compatible with Raspberry Pi and Arduino for effortless project execution. - • **User-Friendly Design:** Snap-on JST-3P socket for quick connections and easy setup. - • **Versatile Applications:** Ideal for smart homes, offices, and robotics—unlock endless possibilities. ## Overview The Collision Sensor/Micro Snap Switch Module is a versatile component designed for seamless integration with Raspberry Pi and Arduino boards. It features a micro limit switch that activates with minimal force, making it ideal for various applications, from smart home automation to educational robotics. With a user-friendly JST-3P socket and a 210mm wire length, this module is perfect for both hobbyists and professionals looking to enhance their projects. ## Description Collision Sensor/Micro Snap Switch/Limit Module Compatible with Raspberry Pi and Arduino Board. for Smart Homes, Offices, 3D Printer and Teaching Interact with Robots. ## Features - Collision sensor / micro limit switch module. Onboard micro limit switch / micro switch, is an electric switch that is actuated by very little physical force. - When the micro limit switch/micro switch is activated, the sensor will output a low level signal and maintain a high level when released. - Onboard snap-on JST-3P socket is easy to plug and unplug, and is equipped with a JST to DuPont female 3-Pin single-head Wire, length: 210mm. - Micro switches are very widely used. can use this for any light or other electrical appliances, electronic equipment, automatic machine, car electric you want to activated. ## Images ![Collision Sensor/Micro Snap Switch/Limit Module Compatible with Raspberry Pi and Arduino Board. for Smart Homes, Offices, 3D Printer and Teaching Interact with Robots. - Image 1](https://m.media-amazon.com/images/I/81DRO-Pwb7L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Useful little microswitch on a custom pcb for easy access *by T***. on Reviewed in the United States on April 9, 2021* I like this little microswitch as it came well packaged, it works well, and it makes install pretty easy with the included cable and pcb module design. It's really simple to wire up as you can see the diagram from the photos and it is pretty simple when it comes down to function.PZSMOCN/CQRobot (if you visit the pzsmocn wiki you'll get redirected to cqrobot now so must have bought them) makes high quality components so I haven't had an issue with them previously nor did I expect one here. The cable was good quality and I like how they went for the 3 pin JST input to make connecting easier. The switched worked flawlessly returning a low signal on activation and high signal normally. The sensor includes an LED which helps indicate it was activated which is nice as I like being able to see visually things are working like that.This product is listed on the CQRobot wiki as a "Crash Sensor" if looking up details. The wiki includes some basic demo code for Arduino and the Raspberry Pi. ### ⭐⭐⭐⭐ 4.0 out of 5 stars Good, Solid Construction, Does Not Debounce *by D***Y on Reviewed in the United States on May 15, 2021* This switch is constructed well. Good size mounting holes. The switch on the board is the same as type as found on a 3D printer end stop.Out of curiosity, I connected this to my test printer controller board running Marlin 2x. It is not pin compatible with a standard end stop. I didn't try changing the configuration, but it may work by inverting the end stop in the Marlin configuration. Note the footprint on this switch is larger than most 3D printer end stop boards.I connected this to an Arduino Uno. The black wire to ground, the red wire to 5V and the green wire to a digital pin (I used D3 as shown in the product image). I wrote a basic program to test the switch (see code below).In my testing, I found that this switch does NOT handle debouncing.#define PIN 3int _previousValue = HIGH;void setup(){ Serial.begin(115200); pinMode(PIN, INPUT); _previousValue = digitalRead(PIN); Serial.println("Ready.");}void loop(){ int value = digitalRead(PIN); if (value == HIGH && _previousValue == LOW) { Serial.println("Button released."); _previousValue = HIGH; } else if (value == LOW && _previousValue == HIGH) { Serial.println("Button pushed."); _previousValue = LOW; } // // Comment the following line to see the switch bounce. // delay(50);}I found that 50 milliseconds will debounce the switch.I like the connector. Makes it easy to use and connect into a circuit.Overall a good switch module. ### ⭐⭐⭐ Basically A Micro-Switch Mounted On A PCB *by P***R on Reviewed in the United Kingdom on February 20, 2021* Came well packed and the build quality looks good.Connections to board are self-explanatory.Little to no information supplied with product, just a couple of references to webpages on packet label.The module is basically a micro switch mounted on PCB and whilst it works as expected and I am sure there are occasions when having a micro switch fitted to a PCB board would be an advantage,But I would think the far simpler cost effective solution would be to fit the switch directly in place.In my opinion far too big and expensive for what it does, (£6.99 at time of review) when compared to the more cost effective solution of directly fitting a cheap simple switch that preforms the same functionality. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.eg/products/303110746-collision-sensor-micro-snap-switch-limit-module-compatible-with-raspberry](https://www.desertcart.com.eg/products/303110746-collision-sensor-micro-snap-switch-limit-module-compatible-with-raspberry) --- *Product available on Desertcart Egypt* *Store origin: EG* *Last updated: 2026-04-26*