jbarchuk:
yashiharu:
c) try connecting only UNO & pump, it works for 3 sec then both device offAnd, what happened 6 seconds later? If it turned on, then done.
(I can't believe I just spent 15 minutes writing an answer trying to ask for more info and describing why certain configurations would cause it to -not- work, then something fell on one of these unknown 'G' gaming keys that I don't use on the kbd, and everything -I- just wrote disappeared.)
Regardless, before I write it again, what's the URL for that relay board? It's very unclear whether the V on the header strip is supposed to be an input or output. More about that later after I see the spec because it -may- explain a -lot- of the failures/oddities.
That 'c)' above, there are -more- ways to hook things up that -don't- work than do. If it worked then that's the one that worked. If you need/expect some other configuration, then describe what it was you did that caused 'c),' and what you -think- should be different and still work.
it just like a power down for all device.
I don't know what will be happened after that, i just shut everything down to prevent burn.
most important, i have to power up 3 pumps at the end.
i feel sorry about that.
This bug is common on all kind of forum.
the 8 relay: HL-58S V1.2
i couldn't find the datasheet
almost the same relay but mine one is 12VDC:Not sure how to wire my 5VDC to 120VAC arduino relay board - Electrical Engineering Stack Exchange
- if the pump Negative connect to NC, it works (no matter what coding is. of coz, it closed.)
- info from seller: this relay is a optical-coupler 8 channel relay ... thats it ...
Test 1 is just a part of the final work ... and i'm stuck now
i went through all the "pump or relay" post from instructables.com
i even copy the wiring here http://www.instructables.com/id/Arduino-LED-Water-Jumping-With-Music/?ALLSTEPS,
result: led and mic works fine, the relay works with program, but pump still not work (i got 4 pumps and tried with all of them)