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iSpindel Digital Hydrometer

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

 

  1. Greg Braund

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    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

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    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

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    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

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    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

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    Posted 9/12/19
    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

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    Posted 10/12/19
    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

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    Posted 10/12/19
    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.
     
  8. Rusted

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    Posted 15/12/19
    Have not given up on this purple iSpindel. I had a similar problem with orange iSpindel but fixed it by re-flashing the firmware. Thought I would try the same again on purple.

    Anyway, firmware will not flash to purple. NodeMcu sits in "waiting" mode waiting the iSpindel. Putty logs shows the iSpindel looping through what looks to be the startup scripts. The iSpindel appears on the network and just as quickly disappears. Tried reset button 3-4 times and no change.

    Is there a way to wipe the iSpindel's current memory or rest the device and re-flash the firmware?
     
  9. Cstew

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    Posted 15/12/19
    nodemcu flasher
    1st Line: INTERNAL://NODEMCU 0x00000
    2nd Line: INTERNAL://BLANK 0x01000

    Also there is an option to clear flash using NodeMCU pyFlasher
     
  10. chesl73

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    Posted 5/1/20
    Hey bee2gee

    Your iSpindel is still working wonders but I was about to use it today and I got lucky and noticed that the lid has split (see attached) before I put it in contact with any liquid.

    So, any ideas where I can buy a replacement lid for the ispindel you make up?

    Thanks 20200105_112301.jpeg
     
  11. Rusted

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    Posted 5/1/20
    The tubes are blanks for PET bottles so you might be able to find a top that fits from a milk or juice bottle.
     
  12. chesl73

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    Posted 5/1/20
    Thanks. A milk top is too small. I'm hoping bee2gee can respond with a specific suggestion given he makes them up himself.
     
  13. MICHAEL LAFLEUR

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    Posted 7/1/20
    bee2gee,

    Saw the posts here regarding the iSpindel from Cherry Philip. I bought a number of brewpiless boards from PCBWay that Cherry Philip shared. However, I have absolutely no documentation about the board. I see you have a way to communicate with Cherry. Can you help?

    Thanks,

    Mike

     
  14. chesl73

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    Posted 7/1/20
    Thanks for the suggestion Rusted.
    I took myself off to the Juices section in Coles and there were various options. I settled on a bottle of Cranberry juice and the lid works perfectly. Cheers!
     
    WEF likes this.
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