The B+ has an under voltage detect trigger which results in the power led going off when voltage drops below about 4.65V. The signal is also available on a gpio line (GPIO35). Latest firmware update will display a warning symbol in top right of display when this is detected. It will also disable turbo mode…
Category: Raspberry Pi Miscellaneous
7″ Display – Modify config.txt
This is for the 7″ LED display I bought off of ebay. It is super crisp, but the resolution is a no-standard size. Once the OS is up you need to configure these settings from a different display. Once configured, reboot. More information about the display and support can be found here: http://www.waveshare.com/wiki/7inch_HDMI_LCD_(C)#Rev2.1_LCD_Images_for_Raspberry_Pi =========== /boot/config.txt…
Tweaks for clean boot and optimization
Tweaks for Rspberry PI <SAVE SPACE> df -h (See where we are at before we begin) sudo apt-get remove –purge wolfram-engine scratch minecraft-pi sonic-pi dillo gpicview penguinspuzzle oracle-java8-jdk openjdk-7-jre oracle-java7-jdk openjdk-8-jre libreoffice* sudo apt-get autoremove sudo apt-get clean sudo apt-get purge df -h (How much space did we save?) </SAVE SPACE> <CLEAN BOOT> Remove the…
Video Issues with 27″ monitor
Raspberry PI video issues with 27″ monitor. edit /boot/config.txt 2560 x 1440 60 1920 x 1080 60 HDMI_group=2 HDMI_mode=82 reboot
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