Hi,
I'm working on a little project using a Teensy 3.2 dev board that can be powered from a 3.3 to 6v source. I wondered if it would be possible to use an S40's 5V Out to power this?
This would save me having to handle the +12v from an alternator.
Many Thanks
Tim
5v Out
-
- Posts: 1250
- Joined: Thu Jul 28, 2011 4:10 am
- ECU Model: S100 Pro
- Distributor: None-Coil On Plug :)
Re: 5v Out
Yes would be fine I think but you should have some idea of how much current you need. Any thing over 0.5 amp would be wrong to my mind.
-
- Posts: 3588
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: 5v Out
I'd be cautious about using that dedicated and important sensor supply for anything other than sensors.
There are a load of cheap 12v to USB adaptors about these days that will give you a simple 5v output.
eg
Undoubtedly there are other options too, but that type of thing is extremely handy.
There are a load of cheap 12v to USB adaptors about these days that will give you a simple 5v output.
eg
Undoubtedly there are other options too, but that type of thing is extremely handy.
-
- Posts: 1623
- Joined: Fri Feb 28, 2014 1:03 pm
- ECU Model: S40 Pro
- Distributor: DTA
- Firmware Version: 79
Re: 5v Out
Don't use the ECU 5v for that, it's only rated for sensor power. A few hundred milliamps, no more.
You'd be better off with a cheap USB converter, as per Stevie.
You'd be better off with a cheap USB converter, as per Stevie.
Re: 5v Out
Thanks for the responses.
So technically it's possible, but not advisable. I guess if for whatever reason the Teensy draws huge current it could kill the sensor circuit. Not good.
I'll drop the idea of using the 5v and handle 12. Thanks for the links!
Tim
So technically it's possible, but not advisable. I guess if for whatever reason the Teensy draws huge current it could kill the sensor circuit. Not good.
I'll drop the idea of using the 5v and handle 12. Thanks for the links!
Tim
- mefmotorsport
- Posts: 543
- Joined: Mon Aug 01, 2011 6:45 am
- ECU Model: S100 Pro
- Distributor: Mefmotorsport
- Firmware Version: 79
- Location: Merseyside
- Contact:
Re: 5v Out
I use an old Blackberry phone charger, perfect for providing a good stable 5V supply up to 1 amp I think. You could probably also use any similar phone charger, Apple iphone or Samsung galaxy etc.