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Showing 41-55 of 55 products · 5 unavailable products hidden
Gravity: Arduino LPG Gas Sensor (MQ4)
INTRODUCTION This is an Arduino CH4 gas sensor. It uses MQ4 probe which is able to detect nature gas, CH4. It is less sensitivity in detecting alcohol, cooking fumes, and cigarette smoke. The sensitivity can be adjusted by the potentiometer. The output is ...
Gravity: Digital Push Button (Blue)
The Gravity Digital Push Button (Blue) is a simple momentary push button module designed for the DFRobot Gravity interface. It features an onboard LED indicator, immersion gold PCB surface, and a coloured button cap. A "D" marking on the board identifies it as a digital sensor for quick wiring re...
Gravity: Arduino Shield for Raspberry Pi B+/2B/3B/3B+/4B
The Gravity Arduino Shield for Raspberry Pi brings Arduino-compatible I/O to your Raspberry Pi B+, 2B, 3B, 3B+, or 4B. Built around the ATmega32u4 (Arduino Leonardo), it sits on top of your Pi and gives you access to all standard Arduino shields and sensors alongside the Pi's own GPIO, I2C, SPI, ...
Gravity: I2C 16x2 Arduino LCD with RGB Backlight Display
A 16×2 character LCD module with full RGB backlight, communicating over I2C for minimal wiring. With support for 16 million backlight colours, this display adds a vibrant, customisable readout to your Arduino or compatible microcontroller projects using just four wires: VCC, GND, SDA, and SCL. P...
Gravity: Arduino Alcohol Sensor (MQ3)
An analogue alcohol gas sensor based on the MQ-3 probe, designed for use with Arduino and other microcontrollers. The sensor outputs a voltage proportional to the concentration of alcohol vapour in the surrounding air, making it suitable for breathalyser-style projects, air quality monitoring, an...
Gravity: Geiger Counter Module Ionizing Radiation Detector
This Gravity Geiger Counter Module detects ionising radiation — including nuclear radiation, X-rays, and cosmic rays — using a large M4011 Geiger-Müller tube. When ionising particles pass through the tube, the module outputs a digital pulse that can be counted by any microcontroller to calculate ...
Sensor Projects with Raspberry Pi : Internet of Things and Digital Image Processing
A hands-on guide to building IoT and image processing projects with the Raspberry Pi. Starting with simple sensor circuits, the book progressively introduces cloud connectivity, real-time alerts, and computer vision — providing practical skills applicable to mobile development and electrical engi...
Gravity: Analog Turbidity Sensor For Arduino
The Gravity Analog Turbidity Sensor measures water clarity by detecting the level of suspended particles. It works by measuring light transmittance and scattering rate, which change with the amount of total suspended solids (TSS) in the water. The sensor provides both analogue (0–4.5V) and digit...
Gravity: I/O Expansion Shield for OpenMV Cam H7 & H7 Plus
Gravity: I/O Expansion Shield for OpenMV Cam H7 & H7 Plus is an expansion shield specially designed for the OpenMV Cam H7 and OpenMV Cam H7 Plus. It is compatible with various sensors and electronic modules of Gravity series, plug and play, no soldering required. It not only helps you avoid the c...
Gravity:Digital White LED Light Module
A simple digital white LED module with Gravity interface. Plugs directly into DFRobot IO/Sensor expansion shields for easy integration with Arduino projects — ideal for beginners learning digital output control. Specifications Type – Digital Colour – White Interface – Gravity 3-pin (Signal, ...
Gravity: STCC4 True Carbon Dioxide (CO2) Sensor (3-in-1 Air Quality Monitoring, 400 ~ 5000ppm)
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This Gravity air quality module uses Sensirion’s STCC4 gas sensing chip to directly measure carbon dioxide with the thermal conductivity measurement principle. It is designed for compact, cost-effective indoor monitoring nodes where stable CO₂ readings are needed without complex hardware integrat...
Gravity: I2C HUB
This Gravity: I2C HUB module is designed to connect up to 8 I2C devices to a main-controller, which allows you easily to hook up multiple I2C devices in project building, for instance, use Gravity-4P I2C/UART sensor cable to connect with Gravity modules or use Jumper Wire to c...
Gravity 3-Pin PH2.0 to DuPont Male Cable Pack 30cm
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This pack includes ten 30 cm Gravity analogue sensor cables, each with a 3-pin PH2.0 plug on one end and DuPont male connectors on the other.The cables are compatible with breadboard and DuPont wire spacing, making them handy for connecting DFRobot analogue sensors to an IO Expansion Shield or IO...
Gravity: WiFi IoT Module for Science Data Acquisition (SCI DAQ)
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The Gravity: WiFi IoT Module is a companion accessory for the Gravity: Science Data Acquisition (SCI DAQ) Module, enabling wireless sensor data transmission to IoT platforms without any programming required. Simply connect sensors to the SCI DAQ module and start uploading data instantly. Operati...
Gravity HF Gas Sensor (Calibrated) - I2C/UART/Analogue
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Measure hydrogen fluoride concentration with a factory-calibrated electrochemical probe that supports analogue, I2C and UART output modes. It is designed for quickly building an HF concentration detector for industrial and environmental protection applications.The sensor includes integrated tempe...
