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Questions tagged [voltage]

152 questions
9
votes
3 answers

Get reading of RPI supply voltage

On the most recent pi I've been playing with I've noticed the under-voltage lightning bolt warning, discussed on this question. My question is whether there's a way I can access the voltage reading used to trigger this warning, so that I can see how…
kabdulla
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3
votes
1 answer

Does Raspberri Pi recover from throttling?

I have a Raspberry Pi (3B+) in a setup, where during boot process may a small undervoltage occur (under certain conditions). However, I found out, that it never leaves the "throttled" state after. dmesg shows usually one set of lines like [ …
Jan Koupil
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1
vote
1 answer

Supply voltage 5V issue from Raspberry Pi 3

I have a sensor connected to a Raspberry Pi 3 and I see some variations of the signals which is not expected. These variations seems to be due to the supply voltage 5 V from the Raspberry Pi. The 5 V signal has both high frequency oscillations…
Giovanni
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1
vote
0 answers

Need a constant power supply for raspberry pi

I'm using a raspberry pi which is connected to a gps. What we do is we plug the raspberry pi to a truck with a car charger so we can track it. But the problem we are facing is that the truck moves around a lot and the raspberry pi losses its power.…
Muhammad Rehman
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0
votes
2 answers

Where is the configuration setting for enabling and disabling low voltage warnings in Bullseye 64 bit?

I'd like to know where the configuration settings are set for the Bullseye 64 bit Raspberry Pi OS to enable or disable low voltage warnings, for both the terminal and the LXDE desktop environment. It appears that previously this was set using an…
BlandCorporation
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0
votes
0 answers

I'm new to this...upgrading a Arcade1up Rampage machine to Raspberry Pi

You guys will probably laugh at me for asking dumb questions...but...here's my issue. Any help would be forever appreciated! I followed the instructions perfectly from a YouTube video by ETA…
Eric
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-3
votes
1 answer

What is a voltage divider?

I bought two switch relays, and connected them up to my Raspberry Pi. I can turn any device on and off, at my will! How, this person online has a more complicated…
Merc
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