In-Car Raspberry Pi Setup (Video)


  #1  
Old 03-19-18, 10:27 PM
D
Member
Thread Starter
Join Date: Jun 2008
Location: Canada
Posts: 30
Received 0 Votes on 0 Posts
In-Car Raspberry Pi Setup (Video)

I am testing an in-car setup (see video link below) with a 12V DC splitter powering a Raspberry Pi 3, two 10.1' portable DVD players and a HDMI splitter.

The Raspberry Pi is connected to a USB multimeter, which is connected to a Quick Charge 3.0 USB port on the 12V DC splitter (the second Quick Charge 3.0 port will be powering the 5V DC HDMI splitter, not shown).

Note the 12V DC splitter is currently connected to an AC/DC converter for testing purposes only, and the 10.1" screen is also connected to an AC outlet but both will be powered in-car by the 12V DC splitter.

So far I've had no issues, but would like to get some input on the voltage and current readings in the video (voltage red, current blue). The official power spec for the Raspberry Pi 3 is 5V 2.5A, but I have not seen it draw more than 800mA so far, and 1080P video playback is around 250-300mA.

https://streamable.com/t55ya

Also component layout drawing for the final setup:

https://www.raspberrypi.org/forums/d...e.php?id=21950

Any thoughts?
 
  #2  
Old 03-20-18, 12:03 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 62,650
Received 1,611 Votes on 1,483 Posts
The basic board requires 400ma. The power requirements increase as you make use of the various interfaces. The 2.5A value looks to be all interfaces running and power to supply the USB ports.

You are measuring actual operating current. That's what it requires to do what you want. Basically it is what it is
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: