
Overview
Through it, you can control a circuit of high voltage with low voltage, say 5V on the controller. There is an indicator LED on the board, which will light up when the controlled terminals get closed.
Tech specs
Specifications
Parameter |
V1.1 |
V1.2 |
Product Release Date |
27th Jan 2013 |
9th June 2014 |
Operating Voltage |
5V |
3.3V~5V |
Operating Current |
60mA |
100mA |
Relay Life |
100,000 Cycle |
100,000 Cycle |
Max Switching Voltage |
250VAC/30VDC |
250VAC/30VDC |
Max Switching Current |
5A |
5A |
Pinmapping
Grove-Relay |
Arduino |
GND |
GND |
VCC |
5V |
SIG |
D4 |
Get Inspired

… about the value of air quality, while simultaneously introducing them to some core STEM concepts, Arduino has you covered. The Arduino Greenhouse Kit and the Arduino Explore IoT Kit include experiments involving air quality, allowing users to build their own sensors and tracking tools to measure a range of data points like humidity, moisture, and the presence of particles like CO2. These projects both work using the Arduino MKR IoT Carrier Rev2, which has a VOC sensor. Use AI to monitor air quality [October 10, 2024 update] The Nicla family now includes the Arduino Nicla Sense Env, ready to provide real-time data on air quality – monitoring temperature and humidity and detecting TVOCs, NO2, O3, and other gasses – both indoors and outdoors, thanks to AI-ready Renesas sensors. Find out more. Share your projects Have you created a project to monitor or improve the air quality inside your home? If so, share it on our Project Hub! Whether you're passionate about conservation or simply curious about the possibilities, now is your chance to join the community and make a difference. Don't miss out — embrace innovation while honoring our planet.