Raspberry Pi tips のバックアップソース(No.1) :: Besttechnology

• 差分^[1] を表示
• 現在との差分^[2] を表示
• Raspberry Pi tips^[3] へ行く。

***various internal value monitors [#r560210a]
$ watch -n 1 sudo vcgencmd measure_clock arm
$ watch -n 1 sudo vcgencmd measure_volts
$ watch -n 1 sudo vcgencmd measure_temp

*+*stop rpi3 boot splash [#t2669980]
/boot/config.txt
add disable_splash=1

cd /boot
sudo mkdir /media/restorey
sudo mount /dev/mmcblk0p1/media/recovery/
sudo cp config.txt /media/recovery/
sudo restart

***gpio heartbeat [#u4e95b61]
dtparam=act_led_trigger=heartbeat
dtoverlay=act-led,gpio=16

***use gpio on ubuntu [#lf884468]
 sudo apt-get install wiringpi

 sudo dpkg --add-architecture armhf
 sudo apt-get install libc6
 sudo apt-get install libc6:armhf libgcc1:armhf

 sudo apt-get install wget

 cd /tmp
 wget https://project-downloads.drogon.net/wiringpi-latest.deb
 sudo dpkg -i wiringpi-latest.deb


$ gpio -v
gpio version: 2.52
Copyright (c) 2012-2018 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty

Raspberry Pi Details:
  Type: Pi 4B, Revision: 04, Memory: 8192MB, Maker: Sony
  * Device tree is enabled.
  *--> Raspberry Pi 4 Model B Rev 1.4
  * This Raspberry Pi supports user-level GPIO access.

• Raspberry Pi tips のバックアップ一覧^[5]
• Raspberry Pi tips のバックアップソース(No. All)
  • 1: 2021-09-07 (火) 09:39:03 takaboo^[6]
  • 2: 2021-09-07 (火) 09:58:03^[7] takaboo^[6]
  • 現: 2021-09-08 (水) 10:55:34^[8] takaboo^[6]