Differences

This shows you the differences between two versions of the page.

--- obd [2023/11/29 12:14] – [Connectors and Hardware] kalaschnikow
+++ obd [2026/08/07 05:50] (current) – [Misc Links] kalaschnikow
@@ Line 1: / Line 1: @@
+====== OBD-II ======
+On-Board-Diagnostics (a.k.a. OBD2)
+===== Protocols =====
+ISO 15765 CAN - mandatory in US vehicle from 2008, EU - maybe from 2003\\
+SAE J1850 PWM - Ford vehicles (PWM - Pulse Width Modulation)\\
+SAE J1850 VPW - GM vehicles (VPW - Variable Pulse Width)\\
+ISO 14230 KWP2000 - Chrysler, EU, Asian vehicles (KWP - Keyword Protocol 2000)\\
+ISO 9141-2 - Chrysler, EU, Asian vehicles\\
+[[https://learn.sparkfun.com/tutorials/getting-started-with-obd-ii|Getting started with OBD-II]]
+===== Simulators =====
+  * [[https://icculus.org/obdgpslogger/obdsim.html|OBDSim]]
+    * https://stackoverflow.com/questions/25720469/connect-obdsim-to-torqueandroid-app-ubuntu
+      * Can be also useful:
+        * https://raspberrypi.stackexchange.com/questions/41776/failed-to-connect-to-sdp-server-on-ffffff000000-no-such-file-or-directory
+    * https://stackoverflow.com/questions/25803595/obdsim-invalid-option-b
+    * https://stackoverflow.com/users/3216511/gary-b -> developer Gary B
+    * https://acassis.wordpress.com/2014/04/03/getting-started-to-obd-ii-using-obdsim/
+    * https://stackoverflow.com/questions/26200772/obdsim-connection-with-android-device-over-bluetooth-on-windows-8-1
+  * [[https://github.com/Ircama/ELM327-emulator|ELM327-emulator]]
+    * Pros:
+      * a little bit newer as OBDSim
+      * has a better README
+    * Install it (see README.md)
+    * The commands to start ELM327-emulator in Bluetooth mode (see also "[[https://github.com/Ircama/ELM327-emulator#usage-of-bluetooth-with-unixlinux|Usage of Bluetooth with UNIX/Linux]]"):
+<code>
+sudo service bluetooth restart
+sdptool add --channel=1 SP
+rfcomm release 0 # if needed (but usually not needed)
+sudo mknod -m 666 /dev/rfcomm0 c 216 0
+sudo chown $USER /dev/rfcomm0
+# after that start the ELM327-emulator
+rfcomm watch /dev/rfcomm0 1 python3 -m elm -P /dev/rfcomm0 -l -s car
+</code>
+===== Connectors and Hardware =====
+[[https://www.techstage.de/ratgeber/obd-2-head-up-displays-furs-auto-ab-20-euro-im-vergleich/ql4gypt|Erstaunlich gut! Head-up-Display fürs Auto zum Nachrüsten ab 20 Euro im Vergleich]] - auch Bluetooth-Adapter wurden getestet.
+[[https://www.amazon.de/dp/B00GSVSN7C?linkCode=xm2&camp=2025&creative=165953&smid=A3TVDIAOCYO59D&creativeASIN=B00GSVSN7C&tag=geizhals-ts-mpde-21&ascsubtag=52cgPdeHIC4Fiz4ijYrLQ|Lescars OBD Adapter: OBD2-Profi-Adapter mit Bluetooth, für Android-Mobilgeräte]] - nur 12€ bei Amazon
+===== Misc Links =====
+http://www.obd-2.de/obd-2-allgemeine-infos.html - eine sehr gute deutsche Seite
+[[https://github.com/eltonvs/kotlin-obd-api|OBD-II Kotlin API]] by [[https://eltonviana.com/|Elton Viana]]
+[[https://github.com/tzebrowski/ObdMetrics|OBD Metrics]] OBD Metrics stands out as a well-architected and adaptable framework for Java developers interested in vehicle diagnostics and telemetry.
+[[https://github.com/topics/obd|Github topic "OBD"]] - more than 80 libraries
+[[https://github.com/topics/obd2|Github topic "OBD2"]] - more than 150 libraries
+[[https://github.com/pires/obd-java-api|OBD-II Java API]] by Pires
+[[https://github.com/barnhill/AndroidOBD|Android OBD Library]] - relatively actual (latest release on October 2022)
+[[https://github.com/md-sohrab-alam/android-obd-reader|android-obd-reader]]
+[[https://github.com/chan2565/obd_gui|OBD GUI for RaspberryPi]]