This is our personal blog – To send us a message, post a comment below or at a specific topic (or: click here to contact us via our company contact form).

On this blog you can read interesting details about…

  • microcontrollers
  • e-bikes
  • e-cars
  • robotics
  • computer vision
  • LiDAR
  • 3D printing
  • mapping & localization
  • digital filters
  • car diagnostics
  • and more

Choose a category at the right, and enjoy discovering!

I would appreciate your donation if you like this blog…

-Alexander Grau

11 thoughts on “About”

  1. Hallo Andreas,

    du hast ein tolles Interface gemacht.
    Leider hatte ich erst eine Verbindung zum Bosch Indego.
    Jetzt erscheint der Fehler: Unauthorized (401).
    Ich bin mir sicher, das meine Email und das Passwort richtig ist.
    Hast du eine Idee, woran es liegen kann?

    Viele Grüße

    Jürgen Kämper

  2. Hi Alexander,
    My name is Dobrin, from Sofia, Bulgaria. Sorry for my English!
    I need a help for custom development, based on your car diagnostic software (OBD KW1281).
    I have modified code of ECU (Motronic 2.3.2), which sending data trought K an L lines, instead OBD KW1281 protocol. When I set one magick byte in ECU the KWP1281 is down and the data start flow with 187500 bps on blocks of 33 Bytes (AA BB then 31 bytes of data (one byte is one car sensor data). So I get data from 31 number of parameters, 10-15 times per second with the engine running and 40-44 when engine is off. This is enough to monitor the functioning of the car.
    I use your development (with little change – I forbade some parts of the program) of car diagnostic software (OBD KW1281) to get data from ECU, but I can view the data only on your form.memdebug.
    I can’t write data into log file and I can’t convert it to the real values. This development is over my abilities.
    I try some things, but I’m not a developer and for the first time I saw Lazarus.
    I add some objects LEDDisplay4: TLEDDisplay but to select current byte, add it to this display and add conversion to the real value and then write this value in log file is over my abilities.

    Can you help with this?

    Best Regards,

  3. it’s a phantastic blog and spent a couple of hours today to browse your content. What caught my attention was the Tango / Ardumower project. I’m thinking for a while to modify my automower. Is it possible to purchase a mower with Tango set-up and sunray directly from you as custom build?
    I hope yes is the answer.
    Many thanks and greetings from Hamburg

  4. I found your ROS world, robot, sensor… very interesting, downloaded and tried to catkin_make_isolated but without success.
    source /opt/ros/kinetic/setup.bash OK. devel_isolated has no setup.bash yet.
    — catkin 0.7.11
    — Using these message generators: gencpp;geneus;genlisp;gennodejs;genpy
    — Checking for module ‘sbpl’
    — No package ‘sbpl’ found
    CMake Error at /usr/share/cmake-3.5/Modules/FindPkgConfig.cmake:367 (message):
    A required package was not found
    Call Stack (most recent call first):
    /usr/share/cmake-3.5/Modules/FindPkgConfig.cmake:532 (_pkg_check_modules_internal)
    CMakeLists.txt:10 (pkg_check_modules)

    <== Failed to process package 'footstep_planner':
    Command '['/home/grauonline/catkin_ws/devel_isolated/humanoid_nav_msgs/env.sh', 'cmake', '/home/grauonline/catkin_ws/src/humanoid_navigation/footstep_planner'

  5. Hello,

    i read in the rfo-basic-forum about bluetooth-le. It was very exciting, because this was the first time to interact with ble via own scripts for me. The connecting works fine but when i tried to read a characteristic ( 2A35- Bloodbressure ), i didn’t found any solution. I suppose, that ich have to change the description 2902 to indicate, which is not possible to make by ble.notify. After this, die several information will be send via BLE . When i use some BLE-Client-Apps, they change this description 2902 to indicate (0200) . Is it possible with your BLE.Code to read some indicate and when how can i change the descritor to indicate enable ( not notify ) and then read the answers inta data$ ?

    Mit besten Grüßen aus Deutschland,

    Jens Wasserberg

  6. Hallo Alexander

    In the calendar section of the Web-GUI, the mowing times (Mähzeiten) are not correctly displayed.
    Configured in the mower are 16:00 – 21:00, but the Web-Gui only 18:00 – 21:00.
    This applies for all days of the week.
    I am using a S+ 350 mower.

    Best regards
    Thomas Nick

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A blog on projects with robotics, computer vision, 3D printing, microcontrollers, car diagnostics, localization & mapping, digital filters, LiDAR and more