Falcon Christmas

Falcon Christmas => Falcon PiCap => Topic started by: deonb on November 30, 2018, 01:44:03 PM

Title: PiCap DMX/LOR power requirements
Post by: deonb on November 30, 2018, 01:44:03 PM
If all I want to drive from the PiCap is DMX (LOR actually), can I just draw power from the Raspberry Pi (v3+) GPIO pins, or do I need to supply 5v to the PiCap as well?
Title: Re: PiCap DMX/LOR power requirements
Post by: algerdes on December 23, 2018, 02:57:20 PM
We did this for a couple of years.  Fed the picap 12vdc, and allowed it to power the RPi under it.  Worked just fine.

Title: Re: PiCap DMX/LOR power requirements
Post by: JonB256 on December 24, 2018, 09:52:17 AM
We did this for a couple of years.  Fed the picap 12vdc, and allowed it to power the RPi under it.  Worked just fine.

If using 12vdc, use a RasPi 3B (not a 3B+) with the PiCap for now. The voltage regulator is marginal for the higher amperage needs of the 3B+

If using a 5vdc supply (jumper layout on the underside of the PiCap), it will be fine if you use a 3A (15w) or higher supply.

I'll be replacing that regulator on my existing PiCaps.
Title: Re: PiCap DMX/LOR power requirements
Post by: deonb on December 25, 2018, 04:32:35 AM
I was able to get it to work with USB power to the Raspberry Pi (3 B) using a 2.4a power supply.