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DMHC TC488 communication protocol

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    #16
    I'm working on the settings for this controller and this is what I have/guess so far:

    Hold + - and SET to
    access or save-exit settings
    Press + to cycle commands // Press set and return to menu settings
    Go to psD78 and press SET to access below items

    Ld (Wheel Diameter): 14, 16, 18, 20, 24, 26, 28, 700. Default: 26

    Vol (Voltage): 24, 36, 48. Default: 48

    LA (Amperage): 20-58 (even only). Default: 20 (Check motor controller for max amperage)

    UN (Unit Kilometers or Miles): 00 (kilometer), 01 (miles). Default: 00

    SP (Max Speed Governor): 20-29 and 60 (kilometers per hour). Default: 60

    P1 (LCD Contrast/Color?): 60-40, 15-09, 01. Default: 01

    CL (Clear trip counter): 00, 01. Default: 00

    SL (Set odometer?): 00-10. Default: 00 (Changing this to 10 from 0 reset both the trip and ODO)

    S6 (Sleep mode?/Light on or off by default?/speed 6km mode by default?): 00, 01. Default: 00

    P0 (Instant max power or Tapered from idle?/Auto power off?): 00, 01. Default: 00

    PS (Auto power screen shut off/power shutdown?): 00, 01. Default: 00

    PC (Autorun/Cruise Control mode?): 00, 01. Default: 00

    HA (Help level for Autorun?/Cruise Control level (holding + and - for 5 seconds)?): 01-06. Default: 01

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      #17
      Hi,

      i have the same display on my das.bike: https://das-bike.com/?page_id=127

      Here are my defaults:
      Ld: 20
      Vol: 36
      LA: 20
      UN: 00
      SP: 25
      P1: 01
      CL: 00
      SL: 00
      S6: 00
      P0: 00
      PS: 00
      PC: 00
      HA: 01

      I think HA could possible mean "Hill Assistance"? Changed it from 01 to 06 and it feels like it helps me way better when climbing up a hill than before (but may also be a placebo only ;-) )

      One thing i wonder about is: I have a thumb throttle mounted, but it only works when PAS is set to 0 and then it also gives only VEEERY little power to the motor - anybody knows how/if this can be changed? And also: Waht are the other psD01 - 99 options for?

      Here are some links to the manufacturer:
      https://e-dmhc.en.china.cn/about.html

      http://www.njdmhc.com/pr.jsp?_pp=0_527_2

      And here is the Users manual for everyday use:
      https://lelion74.blogspot.com/2018/0...ontroller.html

      Comment


        #18
        Hi, I'm new here.

        Thank you so much for the settings of the psD78 Register.
        I reduce now my max. speed to 25km/h, because of the law. Now I'm looking for a possibility to handle the throttle to max speed= 6km/h.
        Does anyone have an idea?
        Thanks in advance.

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          #19
          I have an ebike with DMHC TC 488 lcd controller, when I turn it on the battery display flashes and I get no power, any ideas as battery is fully charged

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            #20
            I have an ebike with DMHC TC 488 lcd controller, when I turn it on the battery display flashes and I get no power, any ideas as battery is fully charged, it was working fine 10 minutes previous.

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