3
What is Arduino®
Arduino
®
is an open-source prototyping platform based on easy-to-use hardware and
software. Arduino
®
boards are able to read inputs
–
light-on sensor, a finger on a button or a
Twitter message
–
and turn it into an output
–
activating of a motor, turning on an LED,
publishing something online. You can tell your board what to do by sending a set of
instructions to the microcontroller on the board. To do so, you use the Arduino
programming language (based on Wiring) and the Arduino
®
software IDE (based on
Processing). Additional shields/modules/components are required for reading a twitter
message or publishing online. Surf to
for more information.
Product Overview
This 4-channel relay interface board can control various appliances and other high-current
equipment. It can be controlled directly by any micro-controller.
Specifications
•
control input current (in1 to in4): 5-15 mA
•
control input voltage: 5-12 VDC
•
relay output: 250 VAC, 10 A; 30 VDC, 10 A (non-inductive)
•
dimensions: 75 x 55 x 19 mm
•
weight: 61 g
Features
•
standard interface that can be controlled directly by any microcontroller
•
opto-isolated inputs
•
indicator LEDs for relay output status
Pin Layout
VCC
5 VDC power
GND
ground
In1
signal pin, connected with Arduino
®
and control relay 1
In2
signal pin, connected with Arduino
®
and control relay 2
In3
signal pin, connected with Arduino
®
and control relay 3
In4
signal pin, connected with Arduino
®
and control relay 4
COM
common terminal low side optocouplers (normally tied to GND)
