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PiSupply / PiJuice

Resources for PiJuice HAT for Raspberry Pi - use your Pi Anywhere
https://uk.pi-supply.com/collections/pijuice/products/pijuice-portable-power-raspberry-pi
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Pijuice gui not working / starting up, low voltage warning #728

Open DieBe opened 3 years ago

DieBe commented 3 years ago

I bought a PiJuice Zero foer my Pi 4 and wired the necessairy pins (from here: https://pinout.xyz/pinout/pijuice#) up. I installed the gui as explained in your user guide using sudo apt-get install pijuice-gui First problem: The Raspberry gives me nearly constantly a low voltage warning. Second problem: The PijJuice status icon in the top bar isn't showing up, however, when I right-click on the space where it should be, I get, as expected, Settings and About... Third problem: As I click on the Pijuice settings icon in the application menu, sometimes a little transparent window opens up for 1-2 seconds and closes itself again, the settings won't open up. Otherwise nothing happens. When trying to open the settings from the (invisible) icon in the top bar, I realised "Settings" was grayed-out, so I can't click on it. I did try to reinstall the gui, but it didn't change anything. I'm using the 12000 mAh Battery. Maybe I'm doing something completely wrong, can anyone help me?

tvoverbeek commented 3 years ago

Which OS are you running on the Pi4? If it is a 64-bit one it is not going to work. Currently the software is 32-bit only.

DieBe commented 3 years ago

I've just set the 32-bit version up to be sure. But it didn't change anything. Maybe the problem is that my Pi 4 has 8 gb of ram whereas 32-bit supports only 4 gb?

tvoverbeek commented 3 years ago

The Pi 4B 8GB runs fine on a 32-bit OS. Is on Raspberry Pi OS or Ubuntu or ...?

DieBe commented 3 years ago

It is the newest Raspberry Pi OS.

tvoverbeek commented 3 years ago

OK. Is the Pi4 running on battery (no external power)? Which battery do you have connected to the PiJuice Zero? The smaller PiJuice Zero batteries (500, 600, 1000, 1200 mAh) do not have sufficient capacity to power the more power hungry Pi4. If you use one of those you will most likely get the low voltage warning.

DieBe commented 3 years ago

I'm using the big 12'000 mAh Batterie, as far as I have tested it, it doesn't matter wether the Pi4 is running from battery or not, but I'll check on that right now.

Update: When I'm using it with the battery, it doens't work, as described above. When I'm using the original Raspberry Pi power supply, I can open the settings. (I was using another power supply before)

Update 2: low voltage warning is still there, but it seems to be less frequently.

Another uptdate: I manually selected the battery profile. Now IO1 and IO2 mode say NOT_USED, I guess they work now.

In the general tab, everything from Run pin to ID EEPROM Address is DATA_CORRUPTED. When I click on Configure HAT in order to open the config, A window with ID EEPROM write protect says DATA_CORRUPTED, as I click OK, I can access the settings.

  1. (?) Update: In the settings window, GPIO power input says 5.01V, 0.4A, NOT_PRESENT. I've still plugged the Pi4 to the power supply. Does that mean the battery isn't charging? It doesn't either show the charging icon in the top bar, it's the power-over-battery icon.
DieBe commented 3 years ago

I've just got a Pi 3 A+, which I'll be using with my Pijuice. All the problems described above seem to be solved by switching to it. The only thing left is the low voltage warning, however it's got really rare.

ShonP40 commented 1 year ago

Getting a low voltage warning as well with my RPi 4 (4GB RAM) with the PiJuice Zero connected to a 10kmAh battery

DieBe commented 1 year ago

I eventually managed to get rid of the warning by using shorter and thicker wires. Not sure how your setup looks, reducing resistance in your system in every possible way will help you.

ShonP40 commented 1 year ago

Didn’t think that these wires could cause issues but yea, I may try other ones

(Orange & red wires are for 5V to & from the RPi) image

ShonP40 commented 1 year ago

After checking it with a multimeter, it seems like this 10cm cable is dropping 0.2V (from 5V to 4.8V). I'll try to find something better at some point probably.

DieBe commented 1 year ago

From what I've experienced, the could be your main problem here. You may also want the check those, or if you can use something else.