I'm trying to create a simple computer-controlled switch for some speakers that plug into my home 120V outlets.
I was thinking I could cut a surge protector or extension cord open, and wire this relay to the cables.
I'd want to then plug this controller into my computer, and then write some simple driver that would let me turn the relay on and off.
I have no experience with relays. I read up on them and know that's what I need, but I don't know how to tell how much Amperage or Voltage you would need to use to power the change between an open and close circuit here.
Controller specs:
Processor: ATmega32U4 @ 16 MHz
RAM size: 2560 bytes
Program memory size: 32 Kbytes
Motor channels: 0
User I/O lines: 15
Minimum operating voltage: 5.5 V
Maximum operating voltage: 15 V
Logic voltage: 5 V
Reverse voltage protection?: Y
Relay:
American Zettler, Inc.
AZ2280-1A-120AF RELAY;
POWER;
MINIATURE;
30A;
SPST;
120VAC;
1 FORM A;
Given the specs of the relay and the controller.. Would this work? How can I tell?
Best Answer
As the datasheet says, the -120AF has a 120VAC coil. Unfortunately you won't be able to activate this with a GPIO. Find a -5DF instead, and use the normal combination of transistor and flyback diode to run it off 5V and your GPIO.