Go to advanced search

by souzafl
Tue Jan 07, 2020 1:30 am
Forum: Python
Topic: High level GPIO after Shutdown command
Replies: 6
Views: 377

Re: High level GPIO after Shutdown command

Would it be possible to keep a GPIO pin high after the shutdown command? I'm not sure there is any easy way of doing it. Some people kludge it by abusing the UART TX line which turns off when the Pi goes into shutdown. The GPIO pin pullup/pulldown state is preserved even during shutdown according t...
by souzafl
Mon Jan 06, 2020 11:59 pm
Forum: Python
Topic: High level GPIO after Shutdown command
Replies: 6
Views: 377

Re: High level GPIO after Shutdown command

The kernel has an overlay dtoverlay=gpio-poweroff to do this. No. This doesn't do what you think it does. gpio-poweroff is to signal your power supply that you want it to cut power to the Pi once the kernel is ready. The normal process is that the kernel tells the firmware to go into the halt state...
by souzafl
Mon Jan 06, 2020 11:51 pm
Forum: Python
Topic: High level GPIO after Shutdown command
Replies: 6
Views: 377

Re: High level GPIO after Shutdown command

Thank you my friend for answering me and indicating the link ... I already used this solution, but after adding this line in the config.txt file, the button that I create to turn on and turn off stops responding, keeping the PI with a powerdown message and the lightning design on the screen, and onl...
by souzafl
Mon Jan 06, 2020 11:13 pm
Forum: Python
Topic: High level GPIO after Shutdown command
Replies: 6
Views: 377

High level GPIO after Shutdown command

Friends this is my first topic, and after much searching the forum, I didn't find an answer to my question. Would it be possible to keep a GPIO pin high after the shutdown command? Why you asked my question: I have a project with Raspberry Pi 3 model B v1.2, where I use 3 buttons (power, reset, and ...
by souzafl
Sun Jan 05, 2020 3:24 pm
Forum: Português
Topic: Manter GPIO em estado Alto após o comando Shutdown
Replies: 0
Views: 347

Manter GPIO em estado Alto após o comando Shutdown

Amigos esse é meu primeiro tópico, e depois de muito pesquisar no forum, não achei uma resposta para minha pergunta.. Seria possível manter uma pino do GPIO em estado alto, após o comando de shutdown? O porque dessa minha pergunta: Tenho um projeto com o Raspberry Pi 3 modelo B v1.2, onde uso 3 botõ...

Go to advanced search