Escape timer with SSD countdown v1

149

02:06:48

Just push the switch and the timer will start. 
The SSD will show the countdown.
When timer finishes, the LED glows.
Change the timer value by changing Resistance R

Timer value=R*1.1*(10^-3)  seconds

Here timer value (20sec) is nothing but escape time.
This type of timer is used in bomb circuits, where planter triggers the circuit and starts to run. He has just 20sec to flee away. This time is called escape time. 

published 10 years ago

SwagSurfin543

10 years ago

ISIS gonna love this circuit haha

Lucan01

10 years ago

May be used for terrorism, and I thanks you for condoning this into EC community; however this has a good reason, who knows you needed to stay away from charging supercapacitor or desulfating a dead VRLA battery, this is a good safety mechanism, but extremely bad idea to post this here.

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