1: 2021-09-07 (火) 09:39:03 takaboo ソース
Line 1: Line 1:
 +***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/wir​ingpi-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.
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