Hi,
I met many times that forget shut down my device which run out of electricity， are there any modules can automatic shutdown circuit when not used for a long time.
Thanks
Adam

 

Hi,
I met many times that forget shut down my device which run out of electricity， are there any modules can automatic shutdown circuit when not used for a long time.
Thanks
Adam

Yes, but you'll need to describe
- what device you have,
- what amount of time
- your definition of "shut down" (how many mA of current is acceptable.
- how will you restart it?

 

Yes, but you'll need to describe
- what device you have,
- what amount of time
- your definition of "shut down" (how many mA of current is acceptable.
- how will you restart it?

Thank you MrSalts.
just diy parts, like a small Arduino car, LED display etc. they used a batteries bank as power supply, some times forgot to turn off and the battery is exhausted.
are there any modules can auto shut down it when not in using a while?

 

Thank you MrSalts.
just diy parts, like a small Arduino car, LED display etc. they used a batteries bank as power supply, some times forgot to turn off and the battery is exhausted.
are there any modules can auto shut down it when not in using a while?

Yes,
Arduino car? What is this?
How is the display connected?
how do you want to restart it (push button or other?
Do you have free pins on the Arduino? Which ones?
is the display powered by the Arduino or other?
Which Arduino 3.3 or 5v.
It is very possible to do what you want but detailed answers are needed.

 

Hi, I am testing this one:
https://circuitjournal.com/arduino-auto-power-off

 

Do You want to turn-off an Arduino,
or do You want to use an Arduino to turn-off some other device ?
.
.
.

 

Hi, I am testing this one:
https://circuitjournal.com/arduino-auto-power-off

That method works well. Just make sure to use appropriate logic-level mosfets.

 

Do You want to turn-off an Arduino,
or do You want to use an Arduino to turn-off some other device ?
.
.
.

for example, I have a multi meter which can auto power off after few minutes of last use.
If I diy that multi meter, I need a auto power off.

 

hi Adam,
Have you seen this link for options.?
E
https://www.google.com/search?sxsrf...AhWlnVwKHRPgCwgQjJkEegQIBBAC&biw=1604&bih=892

 

That method works well. Just make sure to use appropriate logic-level mosfets.

Thanks.
I plan to use IRF3205 (N) and IRF9540PBF (P) he used FQP30N06. is it OK?

 

hi Adam,
Have you seen this link for options.?
E
https://www.google.com/search?sxsrf=APq-WBvc2zYtGesjqTnCdMoMW2HMBDdxdw:1649615252643&source=univ&tbm=isch&q=DVM+auto+power+off+circuit&client=firefox-b-d&fir=SPbZUSDGhUA1IM%2CBRFEkd0fAEad2M%2C_%3BZ7kNn1LgGVAglM%2CNZF-o2igUhpwiM%2C_%3B6bJdZU-wBl78OM%2CKDT99IlvC8FWbM%2C_%3BwIMzDh9R69gGBM%2C0ElSU9Ema9054M%2C_%3BuECDhtVaLYzCEM%2CyOkxcdbGYfRPqM%2C_%3BWRkZgVhcrIu1TM%2CD-76tcD7v4eLJM%2C_%3BW76c23G_Sm_9tM%2CVfCXej1cIFHehM%2C_%3BGS0Ho-eqnZ9luM%2CfSe8YqIv88SRrM%2C_%3BJB6OSkWG2Tg36M%2CelIqULA0irVrgM%2C_%3BwmAFi0biTujO4M%2CbLe-2SOhyaM5bM%2C_&usg=AI4_-kTSPA6-OZhmrTX300TvCwVI97xoDw&sa=X&ved=2ahUKEwjshpnZj4r3AhWlnVwKHRPgCwgQjJkEegQIBBAC&biw=1604&bih=892

Thank you ericgibbs.
I'll find a easier one from there. do you have any suggestion?

 

I tested this circuit seems not working well.
I used IRF3205 instead of 2N70000, 5V and used a 5mm LED as load, it doesn't off at all, why?
https://www.edn.com/circuit-automatically-switches-off-dmm/

 

Hi Adam,
Compare the Drain/Source leakage current of the two MOSFET types.
E