dump question what do the:relays,NPN,and diods do?
875398
I only had the chance to tinker with a couple but one is a relay switch allowing you to program an on off toggle switch, one is light sensor, and the other one I programmed as a dimmer with the LEDs
1744601
The output is a bimetallic switch which is a mechanical switch with time delay so it doesn't respond to things like passing cars. The operative word here is mechanical as opposed to solid state. Solid state relays are fussy about what flows through them (incandescent, CFL, LED) . This is basically a regular on/off switch and doesn't care what it switches as long as you don't exceed the maximum current ratings.
716202
I did not try to set any times like you asked. I use it for 6 hrs per day 7 days per week. Works fine except for relay problem which is "sometimes". I slight knock fixes it for awhile.
812189
I would recheck the connections, and then the relay. You could swap the other relay if it's working properly.
675637
I need to know what items are being controlled i use pids for oven controls .ter 3&4 for thermo couple 6&8 are forsolid state relay 12 is com 9 & 10 are power 1 is relay circuit normaly closed and 11 is normaly open II hope this help let me know what elements or fan
503235
Yes ; it has the relay output ; I purchased one of these a few months ago; and the documentation wasn't clear, but it has the relay output.
994084
I built a harness with a relay and hooked it into a remote fuse block I installed, but with the small amount of amps these led's draw, you don't really need the relay, but I would fuse the circuit!Hope this helps you
1016506
You typically mount the relay near the battery but not on the battery itself. Try to find a location that is dry and easy to access should you need to change the relay in the future.
531671
I didn't use any relays, since they are LED the current draw is low, If my math is correct, each light draws about 1.5 amps.. I'm using them as back-up lights for my 2003 Ram 2500.
251672
No relay needed. 1Positive wire from meter to battery number 1 positive lead. And 1 negative write from meter to last battery negative. Voila!
1355731
I used a socket set (can't remember if it was US or metric) but used 3 different sockets out of the set. Sorry I couldn't be more specific on the socket set.
1467098
no relay,the light,small mounting bracket and about 12" stub of wire.My application i did not use a relay,i just replaced a couple cracked lights on my utv
1008197
I did not use a relay. I used 16g wire. All I did was tap into my reverse light wire from the bundled trailer connections near the hitch. I hope that helps.
1104428
Dear Newman, did you check the relay contacts working or not? Dou you want to use as a HOT CONTACTS? I think it is not possible. You need to use them as a separate circuit switch. Not a hot source switch. I am not sure. Good Luck...Good Luck...
1842235
Yes, just have your power coming in the Com terminal and out the CK (NO) terminal. This works because this circuit is closed (on) when timer is on and open (off) when countdown is done. See my review "INSTRUCTIONS for this Awesome & Inexpensive Delay Timer Relay" for more specifics.
657043
I *think* they are for external power as you suggested. It would be useful when many relays were operated and their current exceeded the Arduino's power supply regulator circuit capability. I am running two 8-relay boards off the Arduino 5v but am careful to only operate 3-4 at a time. The Arduino forum may have additional insights. If using external power be careful not to exceed arduino's output pin voltage and current sink capabilities.
825470
The outputs are "relays", which are mechanical contacts. They therefore do not have a minimum current load.