DC USB power supply for Solar-Assistant

Troubleshooter · May 5, 2023

Anyone found a source for a power supply similar to what Solar-Assistant sells?

SolarAssistant

solar-assistant.io

Their price is great, but shipping to USA makes it unreasonable.

Jamsolar876 · May 5, 2023

I found one on Amazon that's a 12/24v to 5v adapter with microusb connector on Amazon

Adam De Lay · May 5, 2023

I just used a buck converter.

https://www.amazon.com/gp/product/B08HS19W8Z/

DIYrich · May 5, 2023

https://www.amazon.com/dp/B09DGDQ48H/?th=1

v_green57 · May 5, 2023

If you're running SA on a Raspberry Pi, don't forget that you do NOT have to power it via the micro USB port. You can also use pins 2,4,6 of the GPIO connector:

Raspberry Pi - GPIO Connector

Raspberry Pi GPIO Connector - Here, we will learn about the GPIO (general-purpose input output) connector in Raspberry Pi.

www.tutorialspoint.com

This is actually a better way to power the Pi - often the conductors in a USB PS cable are too small, which leads to weird random misbehaviors of the Pi due to low voltage issues. This is a bigger issue with Pi 4 boards, which have a higher current requirement than earlier versions.

When you are freed from the tyranny of the USB power connector, any suitable PS will work.

Troubleshooter · May 8, 2023

Per my brief research, the GPIO 5v input lacks the fuse, TVS diode and smoothing capacitors, therefore it lacks protection from any short circuit conditions.
The input voltage also has to be externally regulated (which is not a problem when using adjustable buck converter).

Brett V · May 30, 2023

I used this one.

https://a.co/d/grz5Ylk

marek1966 · Jun 6, 2023

Adam De Lay said:
I just used a buck converter.

https://www.amazon.com/gp/product/B08HS19W8Z/

Hello how did you connect orange pi Lts

Adam De Lay · Jun 6, 2023

marek1966 said:
Hello how did you connect orange pi Lts

I don't have the Orange Pi, I have a Raspberry Pi 3 Model B. I had a separate Pi that I just bought the software for.

I took an old micro-usb cable and cut the end off, figured out which cable was positive and negative, then wired into the buck converter.

marek1966 · Jun 6, 2023

Adam De Lay said:
I don't have the Orange Pi, I have a Raspberry Pi 3 Model B. I had a separate Pi that I just bought the software for.

I took an old micro-usb cable and cut the end off, figured out which cable was positive and negative, then wired into the buck converter.

thank you

42OhmsPA · Sep 18, 2023

Well if anyone else has this power supply, it doesn't work with the pi 4b... I finally got around to hooking it up, soldered and heat shrunk connections and all......
Oddly it charges a cell phone, tablet and USB power bank but it won't boot the pi; red and green light stay solid. When I use the AC power supply that came with the pi red light stays solid and green light blinks.
I swapped over after I updated to the latest beta so of course I thought the update was bad... Talk about an aggravating waste of 90 minutes, it's not even available on amazon anymore so I can leave a wonderful review.

DC USB power supply for Solar-Assistant

Troubleshooter

New Member

SolarAssistant

Jamsolar876

New Member

Adam De Lay

Solar Wizard

DIYrich

Solar Wizard

v_green57

Solar Enthusiast

Raspberry Pi - GPIO Connector

Troubleshooter

New Member

Brett V

Mad Scientist

marek1966

New Member

Adam De Lay

Solar Wizard

Attachments

marek1966

New Member

42OhmsPA

What's in a title?

Similar threads