Hey, my AirGradient ONE Kit arrived today. I’ve put it together according to instructions. Since it does not come with a power supply, I tried whatever I had lying around - a phone charger power supply. On the back of it, it says “INPUT: 100-240V 50/60Hz 0.4A, OUTPUT: DC5V ===2.4A Max”, which sounded within reason of what I need.
When I plugged the device for the first time, it was flashing all LEDs red and there was nothing on the screen. I shrugged and used my PC USB port to power up the device, connect it to WIFI and to the dashboard.
All went good except one thing - when I power the device it says “Sensor init error: PMS not found”, and after initialization displays a 0 for PM2.5 (it was displaying “-” for a first few times I booted it up). There’s also no data on the cloud dashboard. I’m pretty sure my air is not that clean.
I checked the cable with a multi-meter and it seems to be fine. Initial connection from the PCB to the PMS5003 also seemed fine, but I reconnected it anyway.
To my observation, at no point PMS fans were spinning, as if no power is supplied to the component.
Turns out that power supply does not work, and I wonder if I somehow managed to damage the device 
(my phone won’t change with that power supply).
I see that the firmware writes logs, but unsure how to retrieve those logs to be able to attach them here, if that would be helpful.
I was on firmware version 3.1.11 (I think) when I did initial successful boot, and now it updated automatically to 3.1.21.
Any ideas?
