Avatar for Rando2

Rando2

Member since Sep 2017 • Last active Feb 2020
  • 3 conversations
  • 21 comments

Most recent activity

  • in Puck.js, Pixl.js and MDBT42
    Avatar for Rando2

    And to answer your question, yes and no. I'm working with my Puck and Pixl.js to see what the differences are programming and flashing (OTA, etc.) and a bare MDBT42q module, of which I have several varieties. (Electronut HackBLE, Raytac MDBT42q dev board, and a E73-TBB).

    I still have an ambition to build something custom, and as cheap as possible to interface with this ...
    https://sciencejournal.withgoogle.com/

    We discussed this last year I think :) Thinking about doing a demo for the Puck/Pixl in this context I believe. Still a great idea! Espruino and Google Science Journal are the peanut butter and jelly of educational computing.

  • in Puck.js, Pixl.js and MDBT42
    Avatar for Rando2

    Just to see I download the Espruino-UNMAINTAINED_BOARDS leg from github, and it builds perfectly. I used nRFConnect 3.x to load the espruino_2v03_mdbt42q.hex and it advertises and connects from the Chrome web-ide.

    Might make sense to look at the current master see if there are issues...

  • in Puck.js, Pixl.js and MDBT42
    Avatar for Rando2

    Sorry about this confused post!

    OK, that's much better but I still error out with

    tmp/ccnoNcWz.ltrans0.ltrans.o: In function `nrf_dfu_enter_check':
    /home/rasyoung/source/repos/github/espru­ino/Espruino/targets/nrf5x_dfu/main.c:13­5: undefined reference to `lcd_clear'
    
    
  • in Other Boards
    Avatar for Rando2

    Paradoxically, upgrading the Jlink firmware with JLinkExe 6.62a fixed the slow BLE uplink.

  • in Other Boards
    Avatar for Rando2

    So a complete, patient reboot, and being persistent on making the connection gets me here.
    The web-serial and ble connection both work, which is ideal. Can't be sure what I did, except the Jlink OB fimrware off the Nordic webpage, and Espruino V2.01 can be made work on Ubuntu 16.04, and the latest Chrome.

    The web-ble connection seems to be considerably slower than the web-usb, which I did not notice last time.

  • in Other Boards
    Avatar for Rando2

    Correction Espruino firmware was at 2.01...

  • in Other Boards
    Avatar for Rando2

    Hello,

    I've done something silly, I had an older nRF52-DK loaded with Espruino 2.00 (latest that applies) and was delighted that it seemed to discover/connect faultlessly via the Web-IDE link with a recent Chrome browser on my older Ubuntu 16.04 workstation.

    Today I did several experiments changing the bootloader (mBed dap) instance on the board, and then upgrading the bootloader via JlinkEXE 6.5x under Ubuntu 16.04. I did a lot of drag and dropping of several pre-compiled BLE apps, again just experimenting.

    After, I tried to go back to my initial condition, that is Jlink driver from the Nordic site, and Espruino v. 2.00 the web-serial connection works OK, but my web-ble does not?! Nordic Connect on my MotoE finds the Espruino-DK ble advertisement, and the uart service will connect.

    I get a failure to web-ble pair in one instance, and then it refuses to start at all next time. I can't see what I could have changed visa vie my previous Espruino install???

    Any ideas what I've done wrong restoring this cool functionality?

    Randy

  • in Tutorials
    Avatar for Rando2

    The ZeroW running OpenOcd should bd able to do a complete "mass erase", which a ST-link v2.x could not, I believe...

Actions