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BBB-PC-Internet.txt

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+
+First on BBB check 'route' and set default gateway address to 192.168.147.1.
+See postboot.sh script.
+
+From BBB;
+ping -c2 www.cnn.com if it continues to fail continue otherwise your done.
+
+Check P.C. Windows Host side
+GoTo Control Panel, Network and Sharing Center
+Click on Change Adapter Settings
+Hightlight (ONE Click) BBB USB Adapter (Your Adapter may have a different name)
+Click on Disable BBB USB Adapter
+Pause
+Click on Enable BBB USB Adapter
+Pause
+Respond OK to warning about change to 192.168.137.1 (Your display may differ)
+Double click on BBB USB Adapter
+Click Properities
+Click IPv4
+Click Properities
+==> Make sure IP Address is set to 192.168.147.1 (It's probably set to 192.168.137.1)
+And Preferred Name Server is set to 8.8.8.8
+If the address won't stick Click Advanced
+See if incorrect address is shown
+If it is Click on it and Click Remove then Click Save
+Click Save
+Click Save
+Double Click on WiFi Adapter
+Click Properities
+Click Sharing (On the top)
+Make sure BBB USB is Detected, If not select.
+Click Save
+Click Save
+Close all open Network windows
+
+From BBB try ping -c2 www.cnn.com again. It should work.

Duplicating-Working-SD-Image.txt

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+BBB New Duplicating Image
+
+# 3-25-2020 Ken. Thank you zmatt.
+
+# For example, if the source is /dev/mmcblk0 and destination is /dev/sda
+# Source being SD-Card in BBB and destination being hung off USB port
+
+# ===> Boot off eMMc <===
+ 
+# Shrink the source:
+
+# First become superuser
+
+sudo -s
+
+e2fsck -f /dev/mmcblk0p1
+
+resize2fs -M /dev/mmcblk0p1
+
+# ^^^ It will tell you how big the filesystem now is in 4K blocks. 
+# Divide by 1024 and round up to get the size of the filesystem in 4M blocks.
+ 
+echo 'start=8192,bootable' | sfdisk /dev/sda
+ 
+# Copy the filesystem to the destination. 
+# Fill in the correct number of 4M blocks for COUNT from above
+
+dd if=/dev/mmcblk0p1 of=/dev/sda1 bs=4M count=.... conv=fdatasync
+ 
+# Expand filesystem on destination
+
+resize2fs /dev/sda1
+ 
+# Copy bootloader
+
+dd if=/dev/mmcblk0 of=/dev/sda skip=1 seek=1 count=8191 conv=fdatasync
+ 
+# If you want to continue using the old filesystem, Expand it again
+
+resize2fs /dev/mmcblk0p1
+
+# ===> Remove externally mounted SD-Card on USB adapter
+
+# Give the new filesystem a new unique identifier if needed
+
+yes | tune2fs -U random /dev/sda1
+
+# If you want to reboot off internal SD-Card use command
+
+reboot
+
+# All done

Relay-Cape-Setup.txt

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+
+
+Relay Cape notes
+
+Initialize (relays to out) after an install
+
+echo 20  > /sys/class/gpio/export
+echo out > /sys/class/gpio/gpio20/direction
+echo out > /sys/class/gpio/gpio7/direction
+echo out > /sys/class/gpio/gpio112/direction
+echo out > /sys/class/gpio/gpio115/direction
+
+
+BBGW Note
+
+Well I set the default directory to 
+/sys/class/gpio
+and issued the command
+echo 112 > export
+and like magic the gpio112 appeared. It works now. Don't know why gpio112 was not automatically created however.
+

Ubuntu-to-BBB-Serial-Console.txt

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+
+Ubuntu to Serial Console on BBB
+
+In the VB window where your guest is running, 
+click on Devices -> USB -> Prolific Technology Inc (or whatever) USB device you want to share to your guest.
+Once you do that, Ubuntu will "see" the USB connection and automatically create the necessary /dev/ttyUSB0 device.
+
+Then you can use any of the normal tools to open up /dev/ttyUSB0.  Screen, minicom, gtkterm, etc.
+
+

disable-HDMI.txt

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+
+3-17-2020
+
+To disable HDMI video & HDMI audio at boot add
+
+sudo nano /boot/uEnv.txt
+
+enable_uboot_overlays=1          <=== ??
+disable_uboot_overlay_video=1
+disable_uboot_overlay_audio=1
+
+
+Control/O Enter Control/X
+