Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | SW-420 |
| Operating Voltage | 3.3V - 5V DC |
| Output Type | Digital Switch Output (0 and 1) |
| Detection Mode | Normally Open / Normally Closed selectable |
| Sensitivity Adjustment | Via onboard potentiometer |
| Comparator Chip | LM393 |
| PCB Dimensions | 32mm x 15mm x 8mm |
| Mounting Hole Diameter | 3.0mm |
| Application Scope | Arduino, Raspberry Pi, DIY Alarm Systems |
| Package Contents | 1x Vibration Sensor Module |
Anonymous
Mar 30, 2026
Rating: 5/5
Excellent sensitivity range
What impressed me most is the wide range of sensitivity. You can make it detect a light tap on the table or require a significant shake. The build quality feels durable enough for long-term prototyping.
Anonymous
Mar 24, 2026
Rating: 5/5
Reliable vibration detection
I bought five of these for a classroom project involving earthquake simulators. All units performed consistently. The digital output makes interfacing with microcontrollers incredibly simple without needing complex code.
Anonymous
Mar 23, 2026
Rating: 5/5
Standard component, great price
This is a standard SW-420 module that you see in many tutorials. It functions correctly right out of the box. The comparator chip handles the signal cleaning nicely, providing a stable HIGH/LOW output.
Anonymous
Mar 19, 2026
Rating: 4/5
Good module, clear documentation needed
The hardware quality is solid and the LED indicators are bright and helpful. I deducted one star because the pinout wasn't clearly printed on the back, so I had to look up a datasheet online. Once connected, it worked flawlessly.
Anonymous
Mar 03, 2026
Rating: 4/5
Works well after calibration
Initially, it seemed too sensitive, but after spending a minute turning the blue potentiometer, it became perfect for my door alarm prototype. Fast shipping and well-packaged.
Anonymous
Mar 01, 2026
Rating: 5/5
Perfect for my Arduino security project
This sensor works exactly as described. The sensitivity adjustment via the potentiometer is very responsive, allowing me to fine-tune it so it doesn't trigger on minor ambient noise but catches actual bumps. Great value for the price.
Q: Does this come with header pins soldered?
A: No, the module usually ships with the header pins separate in the bag to prevent damage during shipping. You will need to solder them on yourself, which allows you to choose straight or right-angle headers based on your project needs.
Q: What is the maximum current this module draws?
A: Under normal operating conditions without the indicator LED driving heavy loads, the module typically draws less than 5mA. The LM393 comparator is very power-efficient.
Q: Can this sensor detect sound vibrations or only physical shocks?
A: This module is designed primarily to detect physical shocks and vibrations transmitted through the surface it is mounted on. While loud sounds can cause physical vibration, it is not a dedicated microphone or sound sensor.
Q: How do I switch between Normally Open and Normally Closed modes?
A: The mode is determined by how you interpret the signal in your code or circuit wiring. The module outputs a low signal when vibration is detected (default behavior for many setups). You can invert the logic in your software or use the DO pin state relative to your specific requirement.
Q: Is the output voltage compatible with 3.3V logic boards like ESP32?
A: Yes, the module operates on a 3.3V to 5V supply, and the digital output swings between GND and VCC. Therefore, if you power it with 3.3V, the output will be safe for ESP32 or other 3.3V logic microcontrollers.
Universal Bamboo Joint Fume Extraction Arm Welding Smoke Exhaust Pipe Industrial Waste Gas Collection Hood Support-Free Suction Arm
$33.30
Fengzhu Wet-Dry Separation Waterproof Bag Shoulder Crossbody Pack for Outdoor Fitness Swimming Camping Electronics Storage
$109.00
Palette for Traditional Chinese Painting, Oil, Acrylic - Art Student and Kids Painting Watercolor Pigment Tray
$5.78
Huirui Polypropylene (PP) Super Glue - Fast-Setting Adhesive for Metal, Plastic, TPE, Silicone, Soft PVC, and TPU
$16.80
Bybo Dental Sweden Nobel CC Dental Implant Package Including Crown and Abutment
$6,924.00
Remote Control Negative Ion Air Purifier Home Indoor Formaldehyde Smoke Odor Haze Removal Intelligent Sterilization Disinfection Machine
$76.30
Car Tire Stone Removal Hook, Tool for Clearing Stones Stuck in Tires to Prevent Blowouts, Multi-Function Stone Extractor
$8.42
Motorcycle and E-bike Storage Hook Kit - Multi-function Hanging Hooks for Storage Boxes, Locks, and Racks
$2.01
Mojo 100% Cotton Baohong Watercolor Line Art - Beginner Watercolor, Colored Pencil & Marker Coloring Kit: Cat Letters
$32.80
![[X11] McDull Little Theater Series Plush Sticker Blind Bag, Official Authentic Trendy Collectible Hanging Ornament Toy](https://www.gosteppe.com/cache/small/product/269614/legacy-main-c0c30a047a8b8fb01f07e4d1.webp)
[X11] McDull Little Theater Series Plush Sticker Blind Bag, Official Authentic Trendy Collectible Hanging Ornament Toy
$41.60
Factory Supply Food Processing Equipment - High-Yield Fruit Pitting Machine for Commercial Berry Peeling and Mud Removal
$6,210.00
Fast Shipping Stone Removal Hook New Car Tire Stone Cleaner Tool Multi-Function Vehicle Stone Remover
$29.82
Five Elements Balance Keychain – Pixiu Charm with Natural Crystal Pendant for Wood/Fire Enhancement
$42.40
Chunfei Grocery Store: Commuter Hard Fork Low-Top Tube Mountain Bike for Urban Roads, Suburbs, School Runs, and Outings
$2,246.00
Infant Rattle Toy - Baby Soothing Shaker Drum for Newborns, Chewable and Safe for Boys and Girls
$10.90
Car Tires for Sedans and Vans, Original Equipment Sizes 165/175/185/195/205R in 14/15/16 Inches
$59.00
New Cute Tomato-Shaped Cable Organizer Clip for Charging Cords and Headphone Wires, Fabric Fixed Winding Management
$15.60
Yokohama 245/50R19 V107E 105W Original BMW iX3 EV Tire - Factory Removed
$382.00
DC Drive Equipment
$18,800.00
Meiyike Plant Slow-Release Fertilizer – All-Purpose Nutrient Pellets for Green Plants and Flowers, Household Controlled-Release Compound Fertilizer
$20.15
Pelican Air 1535 Waterproof Shockproof Lightweight Case - Photography Equipment Safe with Wheels - 1535TP Carry-On
$2,565.00
Exclusive for 618 Live Stream 20260508
$199.00
Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Living Room Hot Pot and BBQ Odor Removal
$41.00
Seed Bead Tassel Song Brocade Accessories DIY Ancient Style Bracelet Bag Chest Ornament High-Quality Pendant Versatile Tassel Accessory
$2.98
Popular Pagoda-Shaped Tea Set - Chinese Style Kung Fu Tea Ceremony Set for Home, Living Room, and Office Guest Reception
$67.00
Swiss-Type Lathe External Thread Insert 60° CNC TKFT12RA60005 Stainless Steel Cutting Tool RN6001
$33.00
Dual-Tip Highlighter Set, 6 Colors, Student Marker Pens, Pastel INS-Style Colorful Emphasis Markers
$3.02
Natural 7A Moist Blue Sapphire Loose Beads for DIY Crystal Jewelry Making
$2.24
Custom Company Door Sign, Office Nameplate, Outdoor Cut-Out Enterprise Studio Logo Identifier Background Plaque
$122.20
LA・LA・LA LOVE SONG by Toshinobu Kubota - Precise Saxophone Transcription Sheet Music (3-Piece Set)
$16.00
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
