https://wiki.pm3.dev/ 2026-10-14T00:29:18+00:00 https://wiki.pm3.dev/ https://wiki.pm3.dev/lib/tpl/dokuwiki/images/favicon.ico text/html 2026-10-08T12:40:12+00:00 shelvacu (shelvacu@undisclosed.example.com) https://wiki.pm3.dev/start?rev=1791463212&do=diff PM3 Wiki This is a wiki for information about PROXmobil3 devices by INIT See <https://kevin.wallace.seattle.wa.us/pm3/> About this wiki Unfortunately automated registration has been disabled due to bad actors using it for subscription bombing. Anyone is welcome to an account, just send an email to < text/html 2026-10-08T07:48:53+00:00 doof (doof@undisclosed.example.com) https://wiki.pm3.dev/projects?rev=1791445733&do=diff Projects This list is incomplete; you can help by expanding it. * <https://git.doof.net/proxdongl3>: PCB to adapt rear D-Sub to 9-33V passive PoE + USB + I²C EEPROM + power button. * <https://github.com/checkraisefold/rust-feig-app>: PM3<->cVEND protocol analysis * <https://git.uninsane.org/shelvacu/proxmobil-stuff> trash can grab bag of stuff, currently mainly doom building for arm32 static. Pulls in text/html 2026-09-02T03:37:16+00:00 doof (doof@undisclosed.example.com) https://wiki.pm3.dev/mountingplate?rev=1788320236&do=diff Mounting Plate As far as the software is concerned, this is the “mounting plate”: It is relatively uncommon, and most of them are believed to have been discarded during decommissioning. It takes 3V3, GND, I²C SCL/SDA, and USBD+/-, and passes the rest of the pins into the (snipped) cable. Over USB, it presents the SD card as a mass storage device, and over I²C, it presents a text/html 2026-09-02T03:34:41+00:00 doof (doof@undisclosed.example.com) https://wiki.pm3.dev/?image=mountingplate-box.jpg&ns=0&rev=1788320081&tab_details=history&media_do=diff&do=media <img src="https://wiki.pm3.dev/_media/mountingplate-box.jpg?w=500&amp;h=500&amp;tok=0a9088" alt="mountingplate-box.jpg" loading="lazy" width="500" height="500" /> text/html 2026-07-31T01:27:35+00:00 fredchan (fredchan@undisclosed.example.com) https://wiki.pm3.dev/storage?rev=1785461255&do=diff Storage The PROXmobil3 has two 1GB microSDSC cards by default - one facing sideways, and one facing down. The sideways one contains the rootFS, and the downways one contains the initFS. rootFS The rootFS contains a minimal embedded install of PTXdist Linux 4.9, and is mounted text/html 2026-07-31T01:26:11+00:00 fredchan (fredchan@undisclosed.example.com) https://wiki.pm3.dev/tty?rev=1785461171&do=diff TTY The PM3 does not have any TTY/virtual terminals enabled by default. A TTY can be started with systemctl start getty@tty1. A TTY is not very useful without keyboard support, which is also not enabled by default. For that, you will need to build and load the text/html 2026-07-19T16:41:50+00:00 benjamin (benjamin@undisclosed.example.com) https://wiki.pm3.dev/barcode?rev=1784479310&do=diff Barcode Scanner Barcode scanner is either a Honeywell N5680 connected via serial, or a CODE CR8200. The nx application will apparently translate some Honeywell responses to Code responses, depending on hardware. <https://codecorp.com/products/code-reader-8200/> <https://automation.honeywell.com/us/en/products/productivity-solutions/barcode-scan-engines-and-modules/2d-barcode-scan-engines/n5600-series-2d-standard-scan-engine> The barcode scanner is on /dev/ttyUSB0 text/html 2026-06-27T02:47:38+00:00 xboxbedrock (xboxbedrock@undisclosed.example.com) https://wiki.pm3.dev/main_board_overview?rev=1782528458&do=diff Main Board Overview This is the board that everything connects to. It is what the TQMa6x SOM plugs into, and contains all the circuitry needed to run it. It also contains the pic32. Chips In no particular order: part location ref description & notes text/html 2026-06-08T06:53:26+00:00 fredchan (fredchan@undisclosed.example.com) https://wiki.pm3.dev/kernel_modules?rev=1780901606&do=diff Kernel Modules List factory default kernel modules You can list the factory default kernel modules with the command: find /lib/modules/$(uname -r) -type f -name '*.ko' Building Tip: You can use Dockcross to cross-compile from a Docker container to the PM3. Use the text/html 2026-05-24T10:59:30+00:00 doof (doof@undisclosed.example.com) https://wiki.pm3.dev/cvend?rev=1779620370&do=diff cVEND NFC Reader cVEND is the NFC reader on the bottom half of the PM3 The associated serial device appears to be at /dev/ttymxc3 @ 115200 8n1 in Linux. cVEND protocol notes Boot-up / initialization logic analyzer trace (open with the Saleae app): text/html 2026-05-13T21:06:08+00:00 jordaeday (jordaeday@undisclosed.example.com) https://wiki.pm3.dev/locations?rev=1778706368&do=diff List of Locations that use the PM3 city state country agency source Austin TX USA Capital Metro (CapMetro) kevin.wallace.seattle.wa.us/pm3 Seattle WA USA Sound Transit / King County Metro (ORCA) text/html 2026-03-15T03:19:54+00:00 penguinowl (penguinowl@undisclosed.example.com) https://wiki.pm3.dev/?image=0%3Am075031_desfire.pdf&ns=0&rev=1773544794&tab_details=history&media_do=diff&do=media <img src="https://wiki.pm3.dev/lib/images/fileicons/svg/pdf.svg" alt="m075031_desfire.pdf" loading="lazy" width="500" height="500" /> text/html 2026-03-11T20:40:33+00:00 v (v@undisclosed.example.com) https://wiki.pm3.dev/?image=xray_colorized1.jpg&ns=0&rev=1773261633&tab_details=history&media_do=diff&do=media <img src="https://wiki.pm3.dev/_media/xray_colorized1.jpg?w=500&amp;h=500&amp;tok=4f5820" alt="xray_colorized1.jpg" loading="lazy" width="500" height="500" /> text/html 2026-03-11T20:37:53+00:00 v (v@undisclosed.example.com) https://wiki.pm3.dev/?image=backside.jpg&ns=0&rev=1773261473&tab_details=history&media_do=diff&do=media <img src="https://wiki.pm3.dev/_media/backside.jpg?w=500&amp;h=500&amp;tok=47d58d" alt="backside.jpg" loading="lazy" width="500" height="500" /> text/html 2026-03-11T20:37:46+00:00 v (v@undisclosed.example.com) https://wiki.pm3.dev/?image=frontside.jpg&ns=0&rev=1773261466&tab_details=history&media_do=diff&do=media <img src="https://wiki.pm3.dev/_media/frontside.jpg?w=500&amp;h=500&amp;tok=62a377" alt="frontside.jpg" loading="lazy" width="500" height="500" /> text/html 2026-03-08T04:23:15+00:00 v (v@undisclosed.example.com) https://wiki.pm3.dev/?image=carrier_xray_16bit.png&ns=0&rev=1772943795&tab_details=history&media_do=diff&do=media <img src="https://wiki.pm3.dev/_media/carrier_xray_16bit.png?w=500&amp;h=500&amp;tok=13647d" alt="carrier_xray_16bit.png" loading="lazy" width="500" height="500" /> text/html 2026-03-08T04:00:05+00:00 v (v@undisclosed.example.com) https://wiki.pm3.dev/?image=carrier-bottom.jpg&ns=0&rev=1772942405&tab_details=history&media_do=diff&do=media <img src="https://wiki.pm3.dev/_media/carrier-bottom.jpg?w=500&amp;h=500&amp;tok=2563ba" alt="carrier-bottom.jpg" loading="lazy" width="500" height="500" /> text/html 2026-03-08T03:59:51+00:00 v (v@undisclosed.example.com) https://wiki.pm3.dev/?image=carrier-top.jpg&ns=0&rev=1772942391&tab_details=history&media_do=diff&do=media <img src="https://wiki.pm3.dev/_media/carrier-top.jpg?w=500&amp;h=500&amp;tok=7bcfe1" alt="carrier-top.jpg" loading="lazy" width="500" height="500" /> text/html 2026-03-01T06:18:28+00:00 v (v@undisclosed.example.com) https://wiki.pm3.dev/?image=euthasol.sal&ns=0&rev=1772345908&tab_details=history&media_do=diff&do=media <img src="https://wiki.pm3.dev/lib/images/fileicons/svg/file.svg" alt="euthasol.sal" loading="lazy" width="500" height="500" /> text/html 2026-03-01T06:09:49+00:00 v (v@undisclosed.example.com) https://wiki.pm3.dev/?image=kibble.sal&ns=0&rev=1772345389&tab_details=history&media_do=diff&do=media <img src="https://wiki.pm3.dev/lib/images/fileicons/svg/file.svg" alt="kibble.sal" loading="lazy" width="500" height="500" />