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Arduino 4 relay shield works great - most of the time
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Shop arduino 4 relays shield

Sponsored
About our ads
$15.99
Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
Amazon.com
77
$15.99
Dafurui 5V Relay Module8pack 1 Channel Relay Module 5V Relays Board With Optocoupler Support High/Low Level Trigger For Arduino Relays
Amazon.com
77
$19.99
Arduino UNO R4 Minima [ABX00080]
Amazon.com
330
$19.99
Arduino UNO R4 Minima [ABX00080]
Amazon.com
330
$10.95
Velleman 4 Channel Relay Module Arduino Compatible By Whadda
Jameco Electronics
$10.95
Velleman 4 Channel Relay Module Arduino Compatible By Whadda
Jameco Electronics
$0.84
$1.00
1 2 6 4 8 Channel 5V 12V 24V Relay Module Board Shield With Optocoupler Support High And Low Level
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