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Grove - Relay

SKU C000170 Barcode 103020005 Show more
Original price €0
Original price €3,09 - Original price €3,09
Original price
Current price €3,09
€3,09 - €3,09
Current price €3,09
VAT included

The Grove-Relay module is a digital normally-open switch.

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

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Controlling a drum machine with the Arduino Opta
Controlling a drum machine with the Arduino Opta
June 25, 2024

Makers have long asked the question “why bother with an expensive PLC when I can just use an Arduino?” The answer comes down to the priorities and needs of industrial clients. In a factory automation setting, the client will prioritize durability, reliability, and serviceability over the one-time purchase price of the device itself. But to prove that Arduino’s professional turnkey solutions are just as easy to use as their developer-focused educational counterparts, Jeremy Cook leveraged an Arduino Opta micro PLC to build a drum machine. This isn’t any old drum machine that plays sound samples or synthesized notes, but rather a robotic drum machine that makes noise by banging on stuff like a true percussion instrument. Cook could have built this with any Arduino board and a few relays, but instead chose to implement the Opta and new Opta Digital Expansion. That is robust enough for serious commercial and industrial applications, but is still simple to program with the familiar Arduino IDE. Programmers can also use conventional PLC languages if they prefer. In this case, Cook made noise with relays and solenoids. The Opta has four built-in relays and Cook’s sketch flips one of them to make a sound analogous to a hi-hat. Cook added an Arduino Pro Opta Ext D1608S module with its solid-state relays for the other two “drums.” One of those fires a solenoid that taps a small hand drum (the kick drum sound), while the other controls a solenoid that hits a power supply enclosure (the snare sound). Together, those three sounds can cover the basics of a drum track. Cook’s sketch is a drum sequencer program that stores each sound sequence as array, looping through them until turned off.  An Opta may be overkill for a project like this one, but this does a great job of demonstrating the ease at which an Arduino user can transition to professional PLC work. 

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