Manual

Hardware
The following overview shows the wiring of the pin strips:
VCC Relay voltage (5 V/DC)
GND Ground relay
IN1 Control signal relay 1 (5 V/DC)
IN2 Control signal relay 2 (5 V/DC)
IN3 Control signal relay 3 (5 V/DC)
IN4 Control signal relay 4 (5 V/DC)
IN5 Control signal relay 5 (5 V/DC)
IN6 Control signal relay 6 (5 V/DC)
IN7 Control signal relay 7 (5 V/DC)
IN8 Control signal relay 8 (5 V/DC)
Jumper
This can be used to disconnect the earth between the relay and
the optocoupler!
GND Ground relay (jumper)
COM Ground optocoupler (jumper)
The relays switch when applied to INx 5 V/DC.
The relay outputs are potential-free. You can imagine the contacts
as a simple changeover switch.
The diagram shows the assembly of the switch contact.
If the relay is switched, the respective LED on the relay lights up
as a status indicator.
BN 2268124
8-Channel Relay Module
for Arduino™
GB Operating instructions
Latest operating instructions
Download the latest operating instructions
at www.conrad.com/downloads or scan the
QR code shown. Follow the instructions on
the website.
Delivery contents
• 8-Channel Relay Module for Arduino™
Description
The relay module features 8 separate relays and is ideal for
expanding your microcontroller, e.g. Arduino™, with eight relay
outputs. The control inputs are separated from the relay coils with
optocouplers. This means that they do not interfere with the mi-
crocontroller, and provide additional protection against damage to
the microcontroller's digital ports. Pin strips and screw terminals
ensure easy integration into your circuit.
Product features
• Arduino™ compatible
• 8 relay outputs with changeover contact
(30 V/DC, 10 A; 250 V/AC, 10 A)
• Galvanic isolation from optocoupler
• Can be used with all 5 V microcontrollers
• 8 status LEDs