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Connecting a relay
jola
March 2016
in
Hardware
This is kind of a rookie question
But...
Is there anyone that has tried to connect a opto-isolated Relay Module to a Metawear?
Did you use a 3.3v High?
Any advices?
Comments
Eric
March 2016
Can you elaborate on what you trying to accomplish? What sensor specifically are you looking at?
jola
March 2016
I am looking for controlling a switch - on and off - by using a
3V/3.3V Relay High Level Driver Relay Module for Arduino Optocoupler
.
link
By using this my plan is controlling a lamp by the mobile phone
Eric
March 2016
The max voltage on the GPIO pins is 3V so I don't see why this specific optocoupler wouldn't work with the MetaWear. You can use the GPIO module to set or clear the dout signal.
This discussion has been closed.
But...
Comments
3V/3.3V Relay High Level Driver Relay Module for Arduino Optocoupler. link