
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

This project aims to calculate PPM (Parts Per Million) using 15 different gas sensors, each with individually created slopes. You don't need to worry about calibration; the process is fully automated by the library. The multi-gas sensor system is highly flexible with its plug-and-play feature and adjustable structure, enabling users to easily select the desired gas sensor.