New answers tagged

2 votes

What options exist to manipulate voltage using a Raspberry Pi, above 5v?

Get an ESC (electronic speed control) module. These accept a low-voltage low-frequency PWM signal, or sometimes UART-based digital interfaces such as DSHOT, and produce a proper high-voltage high-...
user avatar
2 votes

What options exist to manipulate voltage using a Raspberry Pi, above 5v?

If I understand your question correctly, I think you will need two components/modules: A DAC that can be controlled by software in your RPi. It seems they are readily available. A "series-pass&...
user avatar
  • 17.8k
2 votes

What options exist to manipulate voltage using a Raspberry Pi, above 5v?

It is hard to answer your question because I do not know enough about your train engines and track setup. Since I have built several over the years (last one 20 years ago) I will take a SWAG. The PWM ...
user avatar
  • 747
1 vote

GPIO only outputs 1.8V when using Bluedot

You state "the GPIO pins suddenly output 1.8V" - this is IMPOSSIBLE (unless the GPIO is grossly overloaded). For a lightly loaded circuit the GPIO output will be >2.5V or <0.8V. It is ...
user avatar
  • 53.5k
-1 votes

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

Further investigation has shown that this appears to be a solution. It appears to suppress kernel messages: sudo dmesg -n 1
user avatar
1 vote

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

You fix it by getting an appropriate supply. There is no way to disable it. The low voltage is detected in hardware and actioned in firmware.
user avatar
  • 53.5k
0 votes
Accepted

Insufficient power for RPI + 7" Touch Screen

Your battery pack does not supply enough power. The recommended minimum is 2.5A for the Pi, the fact that it even runs is luck. I have seen from 2A to 3A recommended. My best recommendation is get a ...
user avatar
  • 747

Top 50 recent answers are included