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The right proximity sensor depends on what you need to detect and how far away it is.
- Nearby objects: Micro Proximity Sensor - 20 cm VCNL4040 (Qwiic) ($10.80) is a compact choice for short-range presence detection. SparkFun Proximity Sensor Breakout - 20cm, VCNL4040 (Qwiic) ($17.20) also senses ambient light.
- Adjustable IR detection: Gravity: 80cm Arduino Infrared Proximity Sensor ($12.00) has a 3–80 cm range. Gravity: Digital Adjustable Infrared Proximity Sensor for Arduino (0~200 cm) ($22.50) offers a digital obstacle-detection signal over an adjustable 0–200 cm range.
- Material-specific detection: Capacitive Proximity Sensor (1-10 mm) ($22.50) detects metallic and non-metallic objects at close range. Ring Inductive Proximity Sensor (8mm Hole Diameter) ($34.70) detects metal passing through an 8 mm opening.
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Showing 41-60 of 70 products · 30 unavailable products hidden
Adafruit 12-Key Capacitive Touch Sensor Breakout - MPR121
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The Adafruit MPR121 Capacitive Touch Sensor Breakout provides 12 channels of capacitive touch sensing over I2C. The MPR121 handles all the capacitive filtering internally and can be configured for varying sensitivity levels, making it far easier to use than raw analog capacitive sensing. With fo...
![Adafruit Feather nRF52 Bluefruit LE [nRF52832]](/rails/active_storage/representations/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCA7pJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--e84e0ef14528f53944c7653ab07bd51013b20c37/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVHsIOgtmb3JtYXQ6CXdlYnA6EnJlc2l6ZV90b19maXRbB2kCkAFpApABOgpzYXZlcnsHOgxxdWFsaXR5aVc6CnN0cmlwVEkiCHB1cgY7AFRJIg52YXJpYXRpb24GOwBG--f55be79df1f1b025f86d676a642df617e240cfbc/image_1f6b637b-52e9-49aa-949b-de81cca17565.jpg)
Adafruit Feather nRF52 Bluefruit LE [nRF52832]
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The Feather nRF52 Bluefruit LE is an all-in-one Bluetooth Low Energy development board built around the Nordic nRF52832. Unlike earlier Bluefruit Feathers that used a separate helper chip, the nRF52832 runs your application code and handles BLE directly — resulting in lower power consumption, low...
Gravity: Starter Kit for Arduino
The Gravity Starter Kit for Arduino is a plug-and-play electronics toolkit designed for beginners and makers getting started with the Arduino platform. It includes a DFRduino UNO R3 microcontroller (fully compatible with Arduino UNO) along with 12 popular sensors and components from DFRobot's Gra...
Reed Switch - Insulated
An insulated reed switch that closes when exposed to a magnetic field and opens when the field is removed. The encapsulated design is more durable than glass reed switches and can be easily populated on a PCB. Key Features Magnetic Activation – Non-contact switching via magnetic field 1 A Max...
Adafruit VL53L0X Time of Flight Distance Sensor - ~30 to 1000mm
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The Adafruit VL53L0X is a Time-of-Flight (ToF) distance sensor from ST that uses an invisible laser to measure distances from approximately 50 mm to 1200 mm. By timing how long the laser light takes to bounce back, it delivers precise distance readings without the linearity issues or double-imagi...
![IR distance sensor includes cable (10cm-80cm) [GP2Y0A21YK0F]](/rails/active_storage/representations/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCF5xJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--cdb8eb9d0fe98d057b414eef8dcd548f395601c6/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVHsIOgtmb3JtYXQ6CXdlYnA6EnJlc2l6ZV90b19maXRbB2kCkAFpApABOgpzYXZlcnsHOgxxdWFsaXR5aVc6CnN0cmlwVEkiCHB1cgY7AFRJIg52YXJpYXRpb24GOwBG--f55be79df1f1b025f86d676a642df617e240cfbc/image_472c71f6-71e8-4819-8c9d-a4318322b0d1.jpg)
IR distance sensor includes cable (10cm-80cm) [GP2Y0A21YK0F]
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The Sharp GP2Y0A21YK0F is an infrared distance sensor that measures distances from 10 cm to 80 cm by bouncing IR light off objects. It outputs an analogue voltage proportional to distance — approximately 3 V at 10 cm and 0.4 V at 80 cm — which can be read directly by an Arduino or other microcont...
SHARP GP2Y0A41SKOF Infrared Distance Sensor (4-30cm)
This Infrared Proximity Sensor made by Sharp (model: GP2Y0A41SKOF) has an analog output which varies from 3.1V (4cm) to 0.3V (30cm) with a supply voltage between 4.5 and 5.5V DC. This sensor is great for sensing objects up to 30 cm away. It has a Japanese Solderless Terminal (JST) Connector whic...
Micro NFC/RFID Transponder - NTAG203 13.56MHz
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A micro-sized NFC/RFID transponder built around the NXP NTAG203 chip operating at 13.56 MHz. Its tiny, flexible form factor makes it ideal for embedding into rings, wearables, keychains, and other compact devices where full-sized NFC tags won't fit. The tag provides 144 bytes of read-write memor...
Hall Effect Sensor - US1881
The US1881 is a latching Hall effect sensor in a TO-92 package. When exposed to a magnetic field above the operating threshold, the open-collector output latches LOW and stays there until a reversed magnetic field pulls it back HIGH. This makes it ideal for detecting the presence or rotation of m...
Gravity:Digital Infrared Distance Sensor (10cm)
A compact digital infrared distance sensor from DFRobot's Gravity range, designed for edge detection and close-range proximity sensing. It detects objects within 1–10 cm and outputs a simple digital HIGH/LOW signal — perfect for preventing robots from falling off tables or down stairs. Connects ...
micro:bit Go (On-the-go Starter Bundle)
micro:bit is a pocket-sized microcontroller designed for kids and beginners learning how to program, letting them easily bring ideas into DIY digital games, interactive projects and robotics.micro:bit comes with a variety of on-board modules, including a 5x5 LED matrix (also supports light detect...
Standard mini Reed Switch Module
A compact reed switch module that closes its circuit when a magnetic field is present. Inside the glass envelope, a pair of ferromagnetic metal contacts come together when a magnet is brought close, and spring apart when the magnet is removed — providing a simple, contactless switching mechanism....
Analog Hall Effect Sensor Module for Arduino
A simple analog Hall effect sensor module for detecting magnetic fields with Arduino. When a magnet is detected, the on-board LED turns on and the analog output changes proportionally to the field strength — making it easy to detect both the presence and relative proximity of a magnet. Key Featu...
SparkFun Capacitive Touch Breakout - AT42QT1011
The SparkFun Capacitive Touch Breakout provides a single momentary touch button using the AT42QT1011 capacitive sense chip. Simply supply 1.8–5 V and ground — the chip handles all touch monitoring and outputs a digital high signal when a touch is detected, low when released. Unlike the AT42QT101...
Adafruit Feather 32u4 Bluefruit LE with Headers - Assembled
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The Feather 32u4 Bluefruit LE with Headers combines an ATmega32u4 microcontroller with a Bluetooth Low Energy module, USB connectivity, and LiPo battery charging — with standard headers pre-soldered so you can plug straight into a breadboard. The Bluefruit module is built on the Nordic nRF51822 ...
Adafruit Wide-Range Triple-axis Magnetometer - MLX90393
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Measure invisible magnetic fields with the Adafruit Wide-Range Triple-axis Magnetometer, featuring the MLX90393 sensor. With 16-bit resolution across all three axes and a dynamic range of ±5 mT to ±50 mT, this sensor is ideal for detecting magnets and magnetic orientation rather than the Earth's ...
![Maxbotix Ultrasonic Rangefinder - LV-EZ4 [LV-EZ4]](/rails/active_storage/representations/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCLVNJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--73ec5f7fdfca900417d9a1d8c4d6851bb16c4481/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVHsIOgtmb3JtYXQ6CXdlYnA6EnJlc2l6ZV90b19maXRbB2kCkAFpApABOgpzYXZlcnsHOgxxdWFsaXR5aVc6CnN0cmlwVEkiCHB1cgY7AFRJIg52YXJpYXRpb24GOwBG--f55be79df1f1b025f86d676a642df617e240cfbc/image_8b55757e-85d8-4021-925c-5fa077ed6e70.jpg)
Maxbotix Ultrasonic Rangefinder - LV-EZ4 [LV-EZ4]
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The LV-EZ4 from MaxBotix is a compact ultrasonic rangefinder that detects objects from 0 to 254 inches (6.45 metres), with calibrated range output from 6 to 254 inches at 1-inch resolution. Objects closer than 6 inches are reported as 6 inches. The EZ4 features the narrowest beam angle in the LV-...
![Maxbotix Ultrasonic Rangefinder - LV-EZ0 [LV-EZ0]](/rails/active_storage/representations/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCFlNJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--96eebefa3274446a70df407f872b22f1c9b1d519/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVHsIOgtmb3JtYXQ6CXdlYnA6EnJlc2l6ZV90b19maXRbB2kCkAFpApABOgpzYXZlcnsHOgxxdWFsaXR5aVc6CnN0cmlwVEkiCHB1cgY7AFRJIg52YXJpYXRpb24GOwBG--f55be79df1f1b025f86d676a642df617e240cfbc/image_c93aa032-60be-43c3-85d4-64812e33c6d0.jpg)
Maxbotix Ultrasonic Rangefinder - LV-EZ0 [LV-EZ0]
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The LV-EZ0 from MaxBotix is a compact ultrasonic rangefinder providing short to long-range detection. It can detect objects from 0 to 254 inches (6.45 m) and provides calibrated range information from 6 inches out to 254 inches with 1-inch resolution. Objects closer than 6 inches are reported as ...
Baron-4WD Arduino Mobile Robot Platform with Encoder
INTRODUCTION The DFRobot 4WD Arduino-Compatible Platform w/Encoders is widely used on the world's self-developed control panel platform. This drive method has a strong obstacle and climbing ability with high strength aluminum alloy body. It features thick acrylic m...
Adafruit Feather 32u4 Bluefruit LE
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The Feather 32u4 Bluefruit LE combines an ATmega32u4 microcontroller with a Bluetooth Low Energy module, USB connectivity, and LiPo battery charging in one compact board. BLE is supported by all modern smartphones and tablets (iOS, Android, Mac OS X, Windows 8+), making it ideal for portable proj...
