murcod
Active Member
- Joined
- Sep 30, 2013
- Messages
- 501
- Reaction score
- 200
- Location
- South Australia
- Country
- Australia
- Dash Cam
- Mobius, A119v2, A119v3
I guess it's a regular topic on this forum- the idiosyncrasies of the Mobius and vehicle power supply fluctuations eg. when starting the engine.
I'm installing my old Mobius into a new vehicle and am now trying to get it to record using a power source that loses +12V for a split second on engine start. Starting the engine is enough to shut down the Mobius and then it will sit there with the charging LED lit doing nothing. My digital multimeter just picks up the drop out (I know they're slow to register voltage fluctuations.)
I had a brilliant (and cheap) idea to use a delay timer in the supply line- to give the Mobius a 10 second delay before power reapplication when the engine is started. Plenty of time for it to sort itself out. It was all fine in theory -and the timer works - the major issue is the timer doesn't pick up on the voltage fluctuations that causes the Mobius to shut down. So it doesn't reset itself and do the 10 second turn on delay!
So has anyone got any other ideas for reliable operation on a problem power supply circuit? Are there any super stable 12V USB power converters with lots of inbuilt filtering?
(I can't help but think surely some sort of internal software/ firmware check on the power status must be possible- to trigger a restart?)
I'm installing my old Mobius into a new vehicle and am now trying to get it to record using a power source that loses +12V for a split second on engine start. Starting the engine is enough to shut down the Mobius and then it will sit there with the charging LED lit doing nothing. My digital multimeter just picks up the drop out (I know they're slow to register voltage fluctuations.)
I had a brilliant (and cheap) idea to use a delay timer in the supply line- to give the Mobius a 10 second delay before power reapplication when the engine is started. Plenty of time for it to sort itself out. It was all fine in theory -and the timer works - the major issue is the timer doesn't pick up on the voltage fluctuations that causes the Mobius to shut down. So it doesn't reset itself and do the 10 second turn on delay!
So has anyone got any other ideas for reliable operation on a problem power supply circuit? Are there any super stable 12V USB power converters with lots of inbuilt filtering?
(I can't help but think surely some sort of internal software/ firmware check on the power status must be possible- to trigger a restart?)