Arduino 4 RELAYS SHIELD

The Arduino 4 Relays Shield allows your Arduino driving high power loads.

The Arduino 4 Relays Shield allows your Arduino driving high power loads that cannot be controlled directly by Arduino's digital pins. The Shield features four relays, each relay with 2 pole changeover contacts (NO and NC). Four LEDs indicate the on/off state of each relay.

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Overview

The Arduino 4 Relays Shield is a solution for driving high power loads that cannot be controlled by Arduino's digital IOs, due to the current and voltage limits of the controller.

The Shield features four relays, each relay provides 2 pole changeover contacts (NO and NC); in order to increase the current limit of each output the 2 changeover contacts have been put in parallel. Four LEDs indicate the on/off state of each relay.

Features

Thinker Kit interface

2x TWI, 2x OUT, 2x IN

Interfaces with Arduino Board

DIO

Relays

4 (60W)

General

Operating Voltage

5 V

Current needs

140 mA (with all releays on, about 35 mA each)

PCB size

53 x 68.5 mm

Weight

0.044 Kg

Product Code

A000110

Description

Operating Voltage

5V

Coil current consumption

140 mA (with all releays on, about 35 mA each)

Single pole chargeover contact maximum current

@ 30 V DC 2A

Maximum load voltage

48 V

Maximum switching capacity

60 W

Power

The shield doesn't need external power: it will be provided by the base board, through the 5V and 3.3V pins of the Arduino board used as base.

Input and Output

The relays are controlled by the following Arduino board pins:

Relay 1 = Arduino pin 4

Relay 2 = Arduino pin 7

Relay 3 = Arduino pin 8

Relay 4 = Arduino pin 12

The shield features several TinkerKit input/output and communication interfaces. Connecting TinkerKit modules can simplify the creation of a project or a prototype. 

The on-board connectors are :

  • 2 TinkerKit Inputs: IN2 and IN3 (in white), these connectors are routed to the Arduino A2 and A3 analog input pins.
  • 2 TinkerKit Outputs: OUT5 and OUT6 (in orange), these connectors are routed to the Arduino PWM outputs on pins 5 and 6.
  • 2 TinkerKit TWI: these connectors (4-pin in white) are routed on the Arduino TWI interface. Both connect to the same TWI interface to allow you to create a chain of TWI devices.
Physical Characteristics

The maximum length and width of the 4 Relays Shield PCB are 2.7 and 2.1 inches respectively. Four screw holes allow the Shield to be attached to a surface or case. Note that the distance between digital pins 7 and 8 is 160 mil (0.16"), not an even multiple of the 100 mil spacing of the other pins.

Compatible Boards

The shield is compatible with all the Arduino boards, 5V and also 3.3V standards.

Getting Started
Tutorials

FAQ

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2 TinkerKit connectors for two Analog Inputs (in white), connected to A2 and A3. 2 TinkerKit connectors for two Aanlog Outputs (in orange in the middle), connected to PWM outputs on pins D5 and D6. 2 TinkerKit connectors for the TWI interface (in white with 4 pins), one for input and the other one for output.
Look the comparative table to know about the Arduino Shields compatibility: