Help Support Aussie Homebrewer by donating:

  1. We have implemented the ability to gift someone a Supporting Membership now! When you access the Upgrade page there is now a 'Gift' button. Once you click that you can enter a username to gift an account Upgrade to. Great way to help support this forum plus give some kudos to anyone who has helped you.
    Dismiss Notice

iSpindel Digital Hydrometer

Discussion in 'Electronics, Hardware & Software' started by Mattrox, 11/5/17.

 

  1. Greg Braund

    New Member

    Joined:
    24/10/19
    Messages:
    2
    Likes Received:
    0
    Gender:
    Male
    Location:
    Perth Hills
    Posted 3/12/19
    From the logs, looks like the firmware can't see a temperature sensor so never initializes properly.
    Could be dodgy sensor but more likely bad solder joint.
     
  2. angus_grant

    Custom Title Now Available

    Joined:
    25/10/11
    Messages:
    1,593
    Likes Received:
    635
    Gender:
    Male
    Location:
    southsideFoLyfe, Brisbane
    Home Page:
    Posted 4/12/19
    So I'm still having problems with my second iSpindel device.

    I can't write to the flash or erase it even. Various tools used to try and wipe the flash

    esptool
    I get "A fatal error occurred: MD5 of file does not match data in flash!" exception when trying to write 6.1.1 firmware to device.

    I get "Timed out waiting for packet header" exception when trying to erase_flash

    Other tools can't complete the flash process, or writing firmware to device
    NodeMCU Flasher never times out from the erase_flash process.

    Frustrating....
     
  3. Greg Braund

    New Member

    Joined:
    24/10/19
    Messages:
    2
    Likes Received:
    0
    Gender:
    Male
    Location:
    Perth Hills
    Posted 4/12/19
    Maybe try another USB cable if you haven't already.
    If MD5 doesn't match then there is corruption / mismatch between the write and then the check read back
     
  4. angus_grant

    Custom Title Now Available

    Joined:
    25/10/11
    Messages:
    1,593
    Likes Received:
    635
    Gender:
    Male
    Location:
    southsideFoLyfe, Brisbane
    Home Page:
    Posted 4/12/19
    Diff USB cable, same problem.
    Both cables flash ESP32's with no problem so I don't think I suspect the cable at all
     
  5. bee2gee

    Pro Pro

    Joined:
    6/7/17
    Messages:
    58
    Likes Received:
    24
    Gender:
    Male
    Posted 9/12/19 at 12:14 AM
    You might need to force flash mode by bridging D3 and GND on boot. I've had a few get upset with my messing around too much and I've had to resort to it.
     
  6. angus_grant

    Custom Title Now Available

    Joined:
    25/10/11
    Messages:
    1,593
    Likes Received:
    635
    Gender:
    Male
    Location:
    southsideFoLyfe, Brisbane
    Home Page:
    Posted 10/12/19 at 11:51 AM
    Same problem with new bin file not being written to flash and causing md5 checksum errors

    C:\Users\angus\Desktop\Brewers Chronicle\iSpindel>esptool.exe --port COM4 write_flash 0x0000 "6.1.1 - firmware.bin"
    esptool.py v2.6-beta1
    Serial port COM4
    Connecting....
    Detecting chip type... ESP8266
    Chip is ESP8266EX
    Features: WiFi
    MAC: 84:f3:eb:04:fa:5a
    Uploading stub...
    Running stub...
    Stub running...
    Configuring flash size...
    Auto-detected Flash size: 16MB
    Flash params set to 0x0290
    Compressed 445840 bytes to 308888...
    Wrote 445840 bytes (308888 compressed) at 0x00000000 in 27.3 seconds (effective 130.6 kbit/s)...
    File md5: c46e06e7b1bb26b02d1ca7f13076090d
    Flash md5: e64bdd306a81180f3d28aa120794646b
    MD5 of 0xFF is 4e4998a1b7412b7a88189d2e9b60ea60

    A fatal error occurred: MD5 of file does not match data in flash!

    C:\Users\angus\Desktop\Brewers Chronicle\iSpindel>
     
  7. HardEight

    Well-Known Member

    Joined:
    20/3/13
    Messages:
    407
    Likes Received:
    114
    Gender:
    Male
    Posted 10/12/19 at 11:52 AM
    Hi, I've recently built and been running a BrewPiLess on my ferment fridge. Now I'm collecting bits for a few iSpindel's. I bought a heap of bits for the older style 3d printed drawer kind. Then bought a couple of these https://www.aliexpress.com/item/4000088868912.html (did I waste my money lol?).
    Anyway I am now after the Petling cylinder things to have a bash and jam all this junk into but have no idea where to source them locally? (instead of the other side of the world on ebay for $$$). Can someone point me in the right direction please ;)
    Cheers.
     

Share This Page