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Showing 41-60 of 100 products
Gravity: Heart Rate Monitor Sensor For Arduino
The DFRobot heart rate sensor is a thumb-sized heart rate monitor designed for Arduino microcontrollers. This sensor is a pulse sensor which is developed based on PPG (PhotoPlethysmoGraphy) techniques. This is a simple and low-cost optical technique that can be used to detect blood volu...
Gravity: Arduino Heart Rate Monitor Sensor (ECG)
The DFRobot Gravity Heart Rate Monitor Sensor measures the electrical activity of the heart and outputs it as an analog signal. Built around the AD8232 chip, it filters and amplifies the ECG signal to produce a clean waveform from the PR and QT intervals — viewable in real time using the Arduino ...
Analog Output K-Type Thermocouple Amplifier - AD8495 Breakout
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The AD8495 from Analog Devices is an analog-output K-type thermocouple amplifier on a compact breakout board. Simply power the board with 3–18V DC, connect a K-type thermocouple to the terminal block, and read the temperature as a voltage on the OUT pin — no digital protocols or complex configura...
Gravity: Arduino CO2 Gas Sensor
The Gravity CO2 Gas Sensor uses an MG-811 electrochemical sensing element to detect carbon dioxide concentration in the air. The output voltage decreases as CO2 concentration increases, and an onboard potentiometer lets you set a threshold for a digital on/off signal output. An onboard heating c...
Octopus Non-invasive AC current sensor TA17-03 Brick
Octopus Non-invasive AC current sensor (TA17-03) Brick is Electronic building blocks, a transformer, an ammeter, a current sensor module, compatible with all kinds of Arduino electronic building blocks / sensor shield. 3P electronic building blocks interface, input 5V - GND, S pin for output a...
Analog Panel Meter - 0 to 5 VDC
A classic analog panel meter for measuring DC voltage from 0 to 5V. Features a clear, easy-to-read scale with an adjustable dial for zero calibration. Ideal for monitoring sensor outputs, power supply voltages, and other 5V range signals in your projects. Key Features 0–5V DC Range – Perfect f...
Gravity: Steam Sensor
This is a steam(water)sensor from DFRobot. This steam sensor can be connected to the Arduino IO Expansion shield directly. The output voltage will increase when the humidity of the sensor surface goes up. Notice:The new version of analog sensor port pin mapping has been changed as the foll...
Carbon Monoxide Sensor (MQ7)
The MQ7 is a simple-to-use Carbon Monoxide (CO) sensor suitable for detecting CO concentrations in the air. It offers a wide detection range from 20 to 2000 ppm, making it ideal for safety monitoring and air quality projects. The sensor outputs an analog resistance that varies with CO concentrat...
Alcohol sensor for Arduino
An alcohol sensor module for Arduino with both digital (TTL) and analog output. It detects alcohol vapour in the 10–1000 PPM range, with analog output voltage increasing proportionally with concentration. The module also responds to LPG, natural gas, city gas, and smoke. The board features a pow...
E-Textiles Light Sensor-TEMT6000
This e-textiles ambient light sensor uses the TEMT6000 phototransistor to detect light levels. Designed for wearable electronics, it features a compact 20 mm round PCB that's only 0.8 mm thick — thin enough to sew into fabric or embed in clothing without adding bulk. The sensor outputs an analog...
Robit - micro:bit board compatible with mbot
Robit is a motherboard of smart car based on micro:bit. It is compatible with MBOT. Except for the integration of the simple and convinient RJ25 connector，motor connector and sensor on MBOT, we have extended 4 DC motor connectors, 2 stepping motor connectors(same with 4 DC motor connectors), 8...
Assembled Adafruit Prop-Maker FeatherWing
The Adafruit Feather series gives you lots of options for a small, portable, rechargeable microcontroller board. Perfect for fitting into your next prop build! This FeatherWing will unlock the prop-maker inside all of us, with tons of stuff packed in to make sabers & swords, props, toys, cosplay ...
SparkFun gator:soil - micro:bit Accessory Board
If your plants could talk, would they call out "Water me, Seymour?" Unfortunately (or fortunately, perhaps) plants have yet to develop the ability to speak. But thanks to the SparkFun gator:soil micro:bit Accessory Board, you can now measure the moisture level in soil without any vocal clamoring ...
PSP 2-Axis Analog Thumb Joystick
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Add a tiny joystick to your project with this PSP thumbstick. This is a replacement component for PSP1000's, but we think they'd make for a great little joystick/thumbstick add-on for a wearable, or portable project. The joystick is a 'self-centering' analog-type. That means it basically a...
Plasma 2350
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An all-in-one, USB-C powered controller for WS2812/Neopixel and APA102/Dotstar addressable LED strips.Plasma 2350 is powered and programmable by USB-C and, because USB-C is capable of drawing up to 3A of power, that's enough to power a healthy chunk of LEDs. There's a useful button that you could...
SparkFun IoT RedBoard - ESP32 MicroPython Development Board - SparkFun Electronics
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The SparkFun IoT RedBoard combines the powerful ESP32-D0WDQ6 microcontroller with MicroPython pre-installed, letting you start coding IoT projects right out of the box. No need for complex toolchains – just connect via USB and start writing Python code. With built-in WiFi and Bluetooth, plus a f...
Adafruit ADG728 1-to-8 Analog Matrix Switch
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The Adafruit ADG728 is a solid-state 1-to-8 analog matrix switch controlled over I2C. Unlike relays, analog switches have no moving parts, won't wear out, and switch in approximately 100 ns. Use it to route up to 8 analog signals (up to 5V) to a single common pin, or vice versa — the signal path ...
Adafruit ADG729 Dual 1-to-4 Analog Matrix Switch
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The Adafruit ADG729 is a solid-state dual 1-to-4 analog matrix switch controlled over I2C. It provides two independent groups of 4 switches — four channels routed to the DA pin and four channels routed to the DB pin — giving you 8 total switches in a compact package. Unlike relays, analog switche...
Adafruit Slider Trinkey - USB NeoPixel Slide Potentiometer
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The Adafruit Slider Trinkey is a tiny USB A board built around the ATSAMD21 microcontroller with a pre-soldered 35 mm slide potentiometer and two NeoPixel LEDs. Plug it into any USB A port on your computer and program it as a volume control, brightness adjuster, colour picker, or any custom slide...
SparkFun Line Sensor Breakout - QRE1113 (Analog)
This version of the QRE1113 breakout board features an easy-to-use analog output, which will vary depending on the amount of IR light reflected back to the sensor. This tiny board is perfect for line sensing applications and can be used in both 3.3V and 5V systems. The board’s QRE1113 IR refle...
