Variant HOVERCAR

Overview

Schematic

Transmitter

Components:

• Hoverboard

• Spare Mainboard Kit: https://s.click.aliexpress.com/e/_dUoKbLT

• Kettler Kettcar Daytona Air: https://bit.ly/2JKZMdp
  Other models from here can also fit: https://intl.toys.kettler.net/en/produkte/katalog/n/0/kettcar-1/0/0.html

• ST Link V2 Programmer: https://www.banggood.com/custlink/3KKmMaNnvR

• 2 x Pedals: https://www.banggood.com/custlink/mmG32e8i46
  https://www.banggood.com/custlink/DKK326ISBM
  or
  https://bit.ly/34iTZoL
  https://www.banggood.com/custlink/vGGmMa4kjb
  https://www.banggood.com/custlink/mKDDka4kjf
  

• Front LEDs: https://www.banggood.com/custlink/G3mKMo0qBd
  https://www.banggood.com/custlink/3KKmqa0qec

• Other possible front LEDs: https://www.banggood.com/custlink/KmKGzoB2BP
  https://www.banggood.com/custlink/KKKGzOezBi

• Wires: https://www.banggood.com/custlink/vD3Dqo6wtz

• Connectors: https://www.banggood.com/custlink/vDKDqLe2gU
  https://www.banggood.com/custlink/Dvm32agzB7

• M5 Bolts and Nuts: https://www.banggood.com/custlink/Kvvm2AIwdp
  https://www.banggood.com/custlink/mDvmza4fPF

• Plywood: can be found in the local hardware stores.

Optional

• DC-DC converter LM2596HV: https://s.click.aliexpress.com/e/_ATlz43

• Servo min. 25kg: https://www.banggood.com/custlink/vvDdP7tGZ2

• RC transmitter
  Flysky i6S: https://www.banggood.com/custlink/3KvdPnfDPc
  Flysky i6X: https://www.banggood.com/custlink/KmDy5swKPD

• RC receiver:
  Flysky FS-iA6B: https://www.banggood.com/custlink/KD3RFswKcT

Calibration:

Proceed with calibration for better control.
With this variant, the auto-calibration is expecting 2 normal pots, and will reject the calibration if an input is missing or is of incorrect type (e.g. mid-resting pot).

Features:

Reverse

Double-pressing brake at standstill will activate reverse.

Switch Control mode

Pressing the left sensor on the sideboard will switch the control mode (Voltage, Speed, Torque).

Field weakening

Pressing the right sensor on the sideboard turns Field Weakening ON/OFF.

Cruise Control

If CRUISE_CONTROL_SUPPORT parameter is used, pressing the right sensor on the sideboard will turn Cruise Control ON/OFF instead of field weakening.
If you are not using the sideboard, and SUPPORT_BUTTONS and SUPPORT_BUTTONS_LEFT parameters are used, pressing a button connected to the blue wire on the left sensor board cable will turn Cruise Control ON/OFF.

Troubleshooting:

• The wheels oscillate when braking: this is normal behavior when there is no load, it won't happen with the wheels on the ground.
  
• If when pressing the brake wheels accelerate, your board probably as a different mapping for hall sensors, firmware measures a speed with opposite sign