| #! /bin/sh | |
| # Display data from serial attached GPS device for testing. | |
| PORT=/dev/ttyACM0 | |
| SPEED=9600 | |
| echo "Reading from $PORT at $SPEED bps." | |
| stty -F $PORT $SPEED |
| #! /bin/sh | |
| # When you're not using systemd on your Raspberry Pi, you | |
| # can still enjoy GPIO push-button shutdown. | |
| # Run this as: | |
| # gpio_pwr_btn.sh & | |
| # It will sit in the background and wait for GPIO to go low. | |
| # When it does, it will issue the shutdown command. | |
| GPIO=GPIO26 |
| ; Prevent recreation of System Volume Information by blocking it with an empty file of the same name. | |
| ; Does System Volume Information store presonally identifiable information? I don't know. | |
| ; Do I want Windoze automagically creating stuff on my Raspberry Pi microSD? No, I don't. | |
| ; Must be run with admin privs | |
| dir /a | |
| cd REMOVEABLE_DRIVE_LETTER (e.g. D:) | |
| rmdir /s "System Volume Information" & copy NUL "System Volume Information" | |
| attrib +h "System Volume Information" |
Even with the current tariff nonsnese, the Orange Pi Zero 3 is a cheap and fairly capable ARM single board computer (SBC). If you've mastered the Raspberry Pi and you want to branch out, Armbian Ubuntu on the Zero 3 is a good place to start.
| ; This assumes Python and esptool module are installed and working. | |
| ; Download the factory image for a fresh install | |
| curl.exe --output tasmota32c3.factory.bin --url http://ota.tasmota.com/tasmota32/release/tasmota32c3.factory.bin | |
| ; Erase before flashing | |
| py -m esptool --port=COM3 erase_flash | |
| ; Flash the image to the first detected COM port at offset 0 | |
| py -m esptool write_flash 0x0 .\tasmota32c3.factory.bin |
| Creates a syslog server that can be used to centrally collect logs from various network devices. | |
| You'll need a Docker compose project directory structure that looks like this: | |
| -rw-r--r-- 1 root root 351 Jul 24 12:00 compose.yml | |
| drwxr-xr-x 3 1000 1000 4096 Jul 24 12:00 config/ | |
| drwxr-xr-x 2 1000 1000 4096 Jul 24 12:00 logs/ | |
| The syslog-ng.conf goes in the config/ directory. Logs will be found in the logs/ directory. | |
| Logs are rotated daily. |
| # Auto-incrementing property | |
| class Test: | |
| _packet_id = -1 | |
| @property | |
| def packet_id(self): | |
| self._packet_id += 1 | |
| self._packet_id &= 0xFF # Truncate to 8-bit max | |
| return self._packet_id |
| #!/usr/bin/env node | |
| function ipv4Compare(a, b) { | |
| let aOctets = a.split('.'); | |
| let bOctets = b.split('.'); | |
| if (aOctets.length !== 4 || bOctets.length !==4) { | |
| throw("InvalidIPv4Address"); | |
| } | |
| if (parseInt(aOctets[0]) > parseInt(bOctets[0])) { |
| check program containers with path "/usr/bin/docker ps --format '{{ .Names }}' --filter 'status=exited'" | |
| every 120 cycles | |
| if content != "" then alert |
| # Create order from chaos | |
| awk '{ printf "%-42s %-16s %-8s %-12s %2s %2s\n", $1, $2, $3, $4, $5, $6 }' /etc/fstab > /etc/fstab.new |