Get Started

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1. Get transmitter, receiver keyboard_arrow_up

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   Get Flysky transmitter FS-i6X with FS-X6B receiver.
   You can choose and others, but in this example will be using these ones.
   

   link
2. Get two hoverboards keyboard_arrow_up

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   Used hoverboard costs around 10-50$ (keep in mind that motherboards and motors must be fine).
   Make sure it's 6.5" inch hoverboards and it is 350W motors (700W hoverboard).
   If you don't have 36V battery, would be good idea, that one of the hoverboards still had not dead battery.
   You will need it later for testing.

   link
3. Get USB Microcomputer Programming Tool keyboard_arrow_up

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   Connect three wires to tool's SWCLK(2), SWDIO(4), GND(6) pins.

   You can use and 3.3V(8) pin, but there are some information on the web that way some motherboards where destroyed, or they missed 3.3V(8) with 5V(10) pin.. so on you.

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   link
4. Compiling firmware using github keyboard_arrow_up

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   Explained whole process how to compile firmware using github.

   link

5. Mechanics

   Chassis - working with metal: disassembling, cutting, welding. Diameters of used materials etc.

6. Disassemble hoverboard keyboard_arrow_up

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   Disassemble everything, leave only frame with wheels attached to it and motherboard, switch on/off, charging port, battery.
   Don't take off wheels, later will be easier to test them when attached to the frame.

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7. Making chassis: materials keyboard_arrow_up

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   Metal and other materials, elements for making wheel mounts, chassis, body frame. Dimensions, quantities.
   For this you will need more than ten different materials including screws etc. to work with.
   98% of them you will find in a local stores.

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8. Making chassis: parts from materials keyboard_arrow_up

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   Making main chassis parts from materials we have, for assembling.

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9. Making chassis: assembling keyboard_arrow_up

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   Assembling chassis from parts we made

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10. How to add big 6 inch tyres on 6.5 inch hoverboard wheels keyboard_arrow_up

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    • Disassemble motors
    • Extend rotors
    • Add 6 inch tyres

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11. Connecting motor-wheels from other motherboard keyboard_arrow_up

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    In some cases colored wires can be misleading. Mostly it happens when you try to connect newly bought motor wheels or it's taken from other hoverboard.
    Mostly it can be recognized, by bigger sound on rotating OR shaking.
    If you have this problem, what you need to do is to check all possible combinations listed below

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12. Programming

    Windows OS, PC/Laptop

13. Software for flashing hoverboard firmware keyboard_arrow_up

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    Software for uploading your compiled code to hoverboard (flashing, hacking, overriding). Windows OS

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14. Online code compiler keyboard_arrow_up

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    Main github rep code and hoverboard firmware compiler with ability to change config.

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15. Compiled 600RPM PWM VLT_MODE .bin firmware file keyboard_arrow_up

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    VARIANT_PWM
    VLT_MODE
    BEEPS_BACKWARD
    N_MOT_MAX - 600RPM
    max Amps for motor 15

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16. Compiled 200RPM PWM VLT_MODE .bin firmware file keyboard_arrow_up

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    VARIANT_PWM
    VLT_MODE
    BEEPS_BACKWARD
    N_MOT_MAX - 200RPM
    max Amps for motor 15

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17. Compiled 1000RPM PWM VLT_MODE .bin firmware file keyboard_arrow_up

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    VARIANT_PWM
    VLT_MODE
    BEEPS_BACKWARD
    N_MOT_MAX - 1000RPM
    max Amps for motor 15

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18. How to flash firmware with programming tool keyboard_arrow_up

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    Shortly, link programming tool to PC and motherboard, open flashing software, choose compiled firmware file, turn on motherboard etc.

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19. Compiling firmware code located on github online keyboard_arrow_up

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    Video how to compile firmware code located on github online:

    link

20. Electronics

    Wiring, Soldering

21. How to connect receiver to one motherboard keyboard_arrow_up

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    As shown in a image this is the wires

    • Signal: PWM1
    • Signal: PWM2
    • Positive: 5V 100mA
    • Ground: GND

    Before connecting you should have be done firmware update, otherwise won't work!
    Also good idea soldering resistors and capacitors finished.

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22. Soldering resistors/capacitors to motherboard keyboard_arrow_up

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    You need to modify a bit hoverboard motherboard to make it work with PWM

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23. How to connect programming tool to motherboard keyboard_arrow_up

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24. Wiring PCM/PCB to your battery pack keyboard_arrow_up

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    If you have PCM/PCB/BMS with on port for chr/dcr
    

    link
25. How to bind Flysky transmitter with receiver keyboard_arrow_up

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    1. connect receiver to the motherboard
    2. press and hold tiny bind button on the receiver
    3. turn on motherboard
    4. release bind button, u should get fast blinking led on the receiver
    5. turn on transmitter (u should see "binding ok" message)
    6. after successful binding, receiver led should be solid red

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26. How to connect receiver to two motherboard keyboard_arrow_up

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    So you already have working well both motherboards well with receiver separately. Now came up with the problem how to make both to work well with one receiver.
    There is something left to do with signals, positive, ground wires.

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27. Notes

    Some problems i faced

28. Motors doesn't give as much power as before keyboard_arrow_up

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    1. check if hall, GBY wires properly connected
    2. check battery voltage, and make sure all cells are in good shape, n well balanced, voltage can be ok, but if some problem in battery circuit it can not give enough amps any more
    3. if one or both motors significantly dropped power, check all (63V 220uF) capacitors in mainboard. First - if soldering is ok, sometimes it go off, not swelling etc. Second- dissolder them and check if capacitance is still in range.

    link
29. First time connected motors and they act like crazy keyboard_arrow_up

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    1. GBY is misleadingly connected or they must be connected not by color - check all combinations, you can start from BY YG GB

    link
30. Motor have very small noise, twitch keyboard_arrow_up

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    1. check if all GBY wires properly connected

    link