wiki

ghosttree_setup - created

John Harrison (john@undisclosed.example.com) — 2026-10-24T22:49:34+00:00

Ghost Tree BeagleBones (unit1–unit5) Summary of how the tree BeagleBone Blacks are set up (October 2026), with the low-level details needed to change or undo things in the field. Overview Each unit is a BeagleBone Black (Debian 10 Buster, BeagleBoard.org IoT image 2020-04-06, kernel 4.19) with a USB C-Media sound card and one LED strip.

bash

John Harrison (john@undisclosed.example.com) — 2026-10-24T18:13:45+00:00

Comments: Put: : <'COMMENTBLOCK_ORWHATEVERYOUWANTTOCALLME' before the block and put: COMMENTBLOCK_ORWHATEVERYOUWANTTOCALLME after the block DISPLAY SETTINGS: * xrandr example: xrandr --output HDMI1 --mode 1280×1024 --right-of eDP1 * change

commerce_st_chameleons - [Powerline US]

John Harrison (john@undisclosed.example.com) — 2026-10-24T13:02:54+00:00

Electric Chameleons * This audio separator works really well separating environmental noise and ported over OK to a local Jetson machine * licensed under MIT license Controlling Beaglebone Black * change parameters for stepper motor (read by pinPulse.sh) sshpass -p yourpassword ssh debian@beaglebone.local "echo 0.5 > /home/debian/pulse_on" sshpass -p yourpassword ssh debian@beaglebone.local "echo 2 > /home/debian/pulse_off"

claude - created

John Harrison (john@undisclosed.example.com) — 2026-10-24T11:23:58+00:00

* set claude code expiry to 365 days instead of the default 30: mkdir -p ~/.claude && f=~/.claude/settings.json && { [ -s "$f" ] || echo '{}' > "$f"; } && jq '.cleanupPeriodDays=365' "$f" > "$f.tmp" && mv "$f.tmp" "$f" && jq .cleanupPeriodDays "$f"

beagle

John Harrison (john@undisclosed.example.com) — 2026-10-23T17:24:08+00:00

Beagle-related Beaglebone, Beagleboard Black, Green, and Friends * boot MicroSD card: hold user button while applying power * will still boot from MicroSD with a reboot command * expand MicroSD partition after burning 4GB partition: sudo /opt/scripts/tools/grow_partition.sh

random - created

John Harrison (john@undisclosed.example.com) — 2026-10-18T23:57:27+00:00

* a bunch of TV stations in VLC:

mikrotik

John Harrison (john@undisclosed.example.com) — 2026-10-17T22:22:43+00:00

mAP lite Configuration webgui active, ethernet passthrough, wireless disabled this configuration will be/was used for Commerce St. public art project: Electric Chameleons * if required reset mAPLite: unplug, replug and immediately press reset and hold until AP and WiFi lights alternate blinking

dome - created

John Harrison (john@undisclosed.example.com) — 2026-10-01T12:38:51+00:00

* Composer Caroline Shaw * * *

sfcs

John Harrison (john@undisclosed.example.com) — 2026-09-18T11:10:36+00:00

Plant Touch Sonification — Project Reference Goal Touch-based interactive botanical installation for sight-impaired visitors. Visitors touch plants, plants produce sound. Must run for months without damaging plants. Signal must be meaningful, not random.

midisprout

John Harrison (john@undisclosed.example.com) — 2026-09-18T11:09:16+00:00

Spad Electronics Board — Technical Summary Firmware Lineage No public Spad-specific repo found. Lineage traced: * MIDIsprout v0.21 (github.com/electricityforprogress/MIDIsprout) — base sensing/MIDI code, MIT licensed, no scale/menu selection.

unreal

John Harrison (john@undisclosed.example.com) — 2026-09-18T00:33:33+00:00

* mesh to metahuman * livelink face app for motion capture (iOS) * fire app and connect to unreal * look up animation blueprint * check out vizibeat

mazda_b2000_1981_wiring_diagram_optimized_1_.pdf - created

John Harrison (john@undisclosed.example.com) — 2025-06-28T19:17:13+00:00

blarney-pligrim.gif - created

John Harrison (john@undisclosed.example.com) — 2025-05-22T14:13:34+00:00

cup-of-tea.gif - created

John Harrison (john@undisclosed.example.com) — 2025-05-22T14:09:14+00:00

730_silver_spear.gif - created

John Harrison (john@undisclosed.example.com) — 2025-05-20T11:50:55+00:00

rights_of_man.gif - created