Logic Timer Switch Module

Thread Starter

tvist21

Joined Jun 11, 2021
7
I was wondering if anyone knows of any off-the-shelf switch modules that switch on if it detects a 12V input voltage and then automatically switch off after 5 minutes or so. This is to turn on/off some LED lighting. I can make one with a 555 timer but I was wondering if there was anything already readily available out there.
 

AnalogKid

Joined Aug 1, 2013
9,478
5 minutes is a loooong time for an R-C timer like the 555; maybe for the CMOS version, but even then it's a stretch. An alternative is the CD4060 oscillator/counter. With this part, the R and C timing components are 8000 times smaller for the same period. This is important for stable capacitor performance.

OR -

ebay has dozens of different timer modules. Some are programmable and only $10. More basic ones are much less.

ak
 
Last edited:

sghioto

Joined Dec 31, 2017
2,416
As far as an "off the shelf" solution check this timer.
I have one of these and it appears to be well constructed.

Timer Relay, DROK Time Delay Relay DC 5V 12V 24V Delay Controller Board Delay-off Cycle Timer 0.01s-9999mins Trigger Delay Switching Relay Module with LCD...
Available on Amazon, 14.00 US
1623463666955.png
 
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