Hello
I have a set of relays that I would like to trigger with a 3.3v GPIO signal.
Please see attached image..
The GPIO signal is but enough to power a small LED.
I have an adequate 5VDC supply to power the relays.
When the GPIO signal goes high, I'd like to have the first relay come on as fast as possible with the second come on after a small (1sec) delay.
When the GPIO signal is removed, I'd like to have the relays remain on for a time of around 10 minutes and both switch off at the same time.
Any help appreciated!
I have a set of relays that I would like to trigger with a 3.3v GPIO signal.
Please see attached image..
The GPIO signal is but enough to power a small LED.
I have an adequate 5VDC supply to power the relays.
When the GPIO signal goes high, I'd like to have the first relay come on as fast as possible with the second come on after a small (1sec) delay.
When the GPIO signal is removed, I'd like to have the relays remain on for a time of around 10 minutes and both switch off at the same time.
Any help appreciated!
Attachments
-
19.2 KB Views: 14