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    KjaerN

    @KjaerN

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    Posts made by KjaerN

    • RE: Powering on the c3u

      Hi @felmue

      Ok, but thank you for loking into it anyway.

      Best regards
      Kenneth

      posted in PRODUCTS
      K
      KjaerN
    • RE: Powering on the c3u

      Hi @felmue

      Thanks again.
      Yes, indeed, it is set to high (3.3v between ground and gpio9). And that is the case both when connected to powersupply and pc.
      I have an old FTD1232 (FT232RL I think it is), for uploading sketches to some old arduino pro mini boards. But I have never used it for debugging purposes, and have not used it for years. So not sure how to get that debug info out.
      I have tried with the Python serial module, but non of the listed ports in device manager will allow me to connect.

      The bord I have uploaded this to:
      https://github.com/leCandas/M5Stamp-C3

      gives the following error in the serial output, but continious executing the expected code:
      22:52:51.175 > Build:Feb 7 2021
      22:52:51.176 > rst:0x15 (USB_UART_CHIP_RESET),boot:0xd (SPI_FAST_FLASH_BOOT)
      22:52:51.176 > Saved PC:0x40385a1c
      22:52:51.176 > SPIWP:0xee
      22:52:51.178 > mode:DIO, clock div:1
      22:52:51.180 > load:0x3fcd6100,len:0x38c
      22:52:51.182 > load:0x403ce000,len:0x6a8
      22:52:51.185 > load:0x403d0000,len:0x236c
      22:52:51.190 > SHA-256 comparison failed:
      22:52:51.194 > Calculated: 86b6856493d23fe741a1623c3d149a38bdf91ca0101173d85f25c3fdb6d605ee
      22:52:51.200 > Expected: e7bbd322b12b609ed444a0547cebdc54bbcf46aefed1e04449d9827791f3e8ab
      22:52:51.203 > Attempting to boot anyway...
      22:52:51.205 > entry 0x403ce000

      But given the ones I havent put anything on is failing, I think that should be understood first.

      Best regards
      Kenneth

      posted in PRODUCTS
      K
      KjaerN
    • RE: Powering on the c3u

      Hello @felmue

      Well, that was also the beahviour I would expect.
      so I just pulled the last "untuched" board out of the foil, and plugged it straight into a usb charger. But still nothing happens, when I press either buttons.
      But yes, I had also tried the reset button with the other boards.

      Then I plugged this new one into my pc, and it emidiatly worked.
      Really strange. And unfortunatly not that usefull for the application I had in mind, if it only runs when hooked up to a pc.

      Thanks for the reply, and for the input specs.
      Kenneth

      posted in PRODUCTS
      K
      KjaerN
    • Powering on the c3u

      Hi M5Stack.

      I have a sligt problem powering on the M5Stamp c3u devises I got.
      I have a package of 5, and none of them (so far tested 4) seems to run the standart progam that comes on the board, when not pluged into a computer.
      I.e., if I either hook its 5v and ground pins up directly, or if I hook it up to a usb charger. The same board however works fine when usb is connected to my computer.
      I also have a M5Stamp c3 which works when hooked up to pins, and to external usb powersupply.

      So far I have not installed the suggested drivers on my computer, since I managed to program this following example on my first attemt (and because I want to use platform IO and not the arduino IDE).
      https://github.com/leCandas/M5Stamp-C3
      But since the behaviour is also present on the bords I have not used, I dont think that is related.

      Also what is the accepted voltage range on the 5v input, I cant seem to find it on the documentation page https://docs.m5stack.com/en/core/stamp_c3u?

      Best regards
      Kenneth

      posted in PRODUCTS
      K
      KjaerN
    • RE: M5StickC Plus arduino 8Servos HAT v1.1 example missing in repository

      Hi Felix.

      Thaks for your repply, and sorry for my late resonse.
      I had some issues logging in again after I created my account.

      Your links got the example code to at least build.
      But once uploaded to the board I never get past "Connect Error" in the setup.

      I have two hats, and two M5StickCPlus, and same issue on both.
      So guess I still have some troubleshuting to do.

      posted in M5 Stick/StickC
      K
      KjaerN
    • M5StickC Plus arduino 8Servos HAT v1.1 example missing in repository

      Hi.

      When I follow the link for the arduino examples in the 8Servos Hat documentation pages I get an 404 error.
      I.e. the links found on this page:
      https://docs.m5stack.com/en/hat/hat_8servos_1.1

      And in deed, they seems to be missing from the repository.

      But in another local project (platform io), I can see that the folders exists in the .pio example section.
      However there (in the 8SERVO_V1.1 example), it tries to include a HAT_8SERVO.h file, which seems to be missing from the example folder.

      Is there a better location I should go to, to find this example?
      Or has this file simply just been forgotten in a commit?
      (Or am I simply missing a include library or somthing?)

      I hope you can help getting me past this issue.

      posted in M5 Stick/StickC
      K
      KjaerN