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Showing 41-60 of 100 products
Octopus Temperature Sensor Brick TMP36 Analog for Arduino Micro:bit
Octopus TMP36 Temperature Sensor Brick is a temperature sensor with low voltage and accurate celsius read. It can provide voltage output,which forms a linear relationship with celsius temperature. TMP36 do not need any external calibration. When it is at +25°C, its typical accuracy is ±1°C,while ...
Optomax Digital Liquid Level Sensor
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The Optomax is an optical liquid level sensor that detects the presence or absence of almost any liquid — oil or water based. Inside the polysulfone housing, an infrared LED and matching phototransistor work together: when dry, the IR light reflects internally back to the sensor; when the tip is ...
DC 12V/24V Infrared Body Sensor Switch
This human body sensing switch adopts an infrared detection way to control load switch. It offers a detection range of 5~8m, high sensitivity, and reliability. The sensor has an adjustable delay function and the input and output voltages are the same. It is widely used in various automatic i...
Gravity: MAX30102 Heart Rate and Oximeter Sensor
The DFRobot Gravity MAX30102 sensor module measures heart rate and blood oxygen saturation (SpO2) using photoplethysmography (PPG). It integrates the Maxim MAX30102 chip with an on-board MCU that processes raw PPG data and outputs heart rate and SpO2 values directly via I2C or UART, reducing proc...
Digital IR Proximity Sensor (1-400cm)
The Digital IR Proximity Sensor detects objects at distances from 1 to 400 cm using a 940 nm laser emitter. It's the advanced version of the SEN0381, offering a longer sensing range and an onboard status indicator LED. Detection distance is adjustable — hold the onboard button for 3 seconds, the...
KnowFlow Basic Water Monitoring Kit
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Build a DIY water quality monitor for field studies, teaching or environmental projects with the KnowFlow Basic Kit. This Arduino-based kit measures two key water parameters: pH and electrical conductivity (EC).Data can be recorded automatically to a micro-SD card for later analysis, and the Blun...
Automation HAT
The Pimoroni Automation HAT is a versatile home automation and monitoring controller for the Raspberry Pi. It provides relays, analogue inputs, buffered digital inputs, and powered outputs — all 24 V tolerant — with indicator LEDs on every channel for at-a-glance status monitoring. Connects to t...
SparkFun OpenScale
The SparkFun OpenScale is an open-source weight measurement board designed for load cells. Simply connect a four-wire or five-wire load cell of any capacity, plug into USB, open a serial terminal at 9,600 bps, and you'll immediately see mass readings. A built-in serial menu lets you configure cal...
Gravity: Analog Signal Isolator
The Analog Signal Isolator can isolate analog signal and provide isolated power to sensors. It can effectively prevent sensor signal interference and apply to multi-parameter water quality monitoring sensors. Because usually sensors will be interfered by the other sensors during the measurement,...
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Standalone Toggle Capacitive Touch Sensor Breakout [AT42QT1012]
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This breakout board is the simplest way to create a project with a single "toggle" capacitive touch sensor. No microcontroller is required here - just power with 1.8 to 5.5VDC and touch the pad to activate the sensor.This sensor is a toggle output type: touch-on then touch-off. That means that...
Automation pHAT
The Automation pHAT is a compact home monitoring and automation controller for Raspberry Pi in the smaller pHAT form factor. With a relay, three analogue channels, buffered inputs, and sinking outputs — all 24V tolerant — it packs serious control capability into a minimal footprint. Uses the sam...
SparkFun Qwiic Scale - NAU7802
The SparkFun Qwiic Scale is a small breakout board for the NAU7802 that allows you to easily read load cells to accurately measure the weight of an object. By connecting the board to your microcontroller you will be able to read the changes in the resistance of a load cell and, with some calibrat...
Automation pHAT
The Automation pHAT is a compact home monitoring and automation controller for Raspberry Pi. With a relay, analog channels, powered outputs, and buffered inputs — all 24V tolerant — you can connect a wide range of sensors and actuators to your Pi in one neat package. It uses the same Python libr...
SparkFun DataLogger IoT
The SparkFun DataLogger IoT is a data logger that comes preprogrammed to automatically log GPS and various pressure, humidity, and distance sensors. All without writing a single line of code! The DataLogger automatically detects, configures, and logs Qwiic sensors. It was specifically designed fo...
Motion Activated Audio Player with Separate PIR
This motion-triggered audio player is designed to automatically play MP3 alerts when movement is detected by a separate PIR sensor. Because the PIR sensor is separate from the player, you can position the sensor where it needs to detect motion while mounting the audio player somewhere convenient....
Motion Activated Audio Player with Two Separate PIR
This motion-activated MP3 player is designed to play audio automatically when movement is detected by PIR sensors. The sensors are separate from the player, so they can be positioned where they are most useful while the audio electronics stay mounted nearby.This dual-PIR version connects external...
Adafruit HX711 24-bit ADC for Load Cells / Strain Gauges
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The Adafruit HX711 Breakout is a high-resolution 24-bit differential ADC designed for reading load cells, strain gauges, and other Wheatstone bridge sensors. With selectable 64× or 128× gain on Channel A and fixed 32× gain on Channel B, it amplifies the tiny voltage changes from bending or twisti...
Gravity: Thin-film Pressure Sensor for Pressure Science Course
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The Gravity: Thin-film Pressure Sensor measures pressure through the deformation of a flexible film material. As pressure increases, the film deforms, producing higher analog output values, while lighter pressure results in lower output. This sensor is an excellent educational tool for hands-on e...
Gravity: Analog Current Sensor 50A (AC/DC) V2
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##Introduction This is an updated version. Retired Product: Gravity: Analog 50A Current Sensor (AC/DC) V1Get this low-power current sensor to monitor your project every second for saving energy or protecting the circuit!This fully integrated Hall Effect-based linear STK-600/M current sensor gives...
Threshold Carbon Monoxide Detection Sensor (0-1000ppm)
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##Introduction This carbon monoxide gas sensor differs from most gas sensors on the market as it does not provide specific gas concentration data. Instead, it detects whether the surrounding environment exceeds or falls below a fixed threshold. It operates on a wide voltage range of 5-24V, with h...
