• All mechanical parts 3D printed (even the springs)
• Symmetric design - left & right side can be swapped
• Sustainable - All external parts can be replaced
• Open Source: 3D Models, Electronics and Software are GPL3.0
• 2.4GHz Link (range dependant on antenna type, position)
• Communication with VESC via UART / CAN
• Low battery alarm (vibration)
• Water ingress alarm integrated in receiver
• Fall-off detection (not yet implemented)
• Gears / Power Levels / Cruise Control
• Charging and Programming via USB

• Promo Video
• Overview + Build Video
• Updated Build Video
• Deep Dive Video
• Update Video 04/2023
• Steering & Long Range Update Video

• Tx & Rx PCBs, order at JLCPCB, Gerbers see releases
  • Instruction how to order at JLC (only do Step 2&4)
• Tx wireless module "Color: NRF24L01 SMD"
• Rx wireless module "Color: GT-24 SMD"
• IPEX Antenna for Rx
• 0.36" 2-digit, 7-Segment Display, Common Cathode "CC"
• 2x SMD Header, 2x5-pin
• EITHER Connector SP13 4-pin
• OR Magnetic Connector
• Battery Sanyo UR14500AC 740mAh
• Vibration Motor 24x7mm, 3.7 to 5V

• 2x Magnet N52 D3x6mm
• 2x Self-Threading Screw DIN7982 2.2x6.5mm
• PU Foam, ~Factor 15, e.g. Talamex 45729200
• 3D Printed Parts, see releases

• With the remote off, push the toggle forward to turn it on
• As long as you keep the toggle forward, you will be shown the internal battery capacity in %
• With //#define NO_LOCK disabled in SHARED_CONFIG.h:
  • The remote will start in locked state
  • Push the toggle down to unlock
  • The remote will show you "PP", demanding you to push the trigger to its maximum position
  • Once you release the trigger, the remote will be in operating state
  • Push the toggle up/down to increase/decrease gear (The remote will always start in lowest gear)
  • Push and hold the toggle down to lock again
  • Push and hold the toggle up to turn off the remote
• With #define NO_LOCK enabled in SHARED_CONFIG.h:
  • The remote will immediately start in unlocked state
  • Push the toggle up/down to increase/decrease gear (The remote will always start in highest gear)
  • Push and hold the toggle up to turn off the remote

Q: When trying to program the remote with the Arduino IDE, I get an error "avrdude: stk500_getsync()" A: Make sure you selected "Arduino Nano ATmega328P (Old Bootloader)"

Note: Changing to this release will require new calibration!

• Tx:
  • THR_TO_PWRUP: Remote can be set to only turn on when throttle is pressed (more robust to unwanted turn-on)
  • REVERSE: Instead of 10 forward gears, there is a forward and reverse gear
  • DONT_SEND_IDLE: Remote will stop sending packets when trigger is not pressed (multiple remotes can be used with one Rx, e.g. for sharing a tow boogie)
• Rx:
  • Diff. Steering
• Calibration:
  • Added new paramter for "THR_TO_PWRUP" function
• Add connection example for Steer/Dual Motor

• Minor changes on main body
  • Longer antenna hole (now 58mm)
  • Reinforcements

• Added Juergens improved version of the long range bodies

• Softer Gears: When at full throttle, changing gear is smoothened (Thanks to Dyse)

• Added Information how to connnect ISP for LR version

• Remove Toto Mode
• Add more options to customize UI:
  • NO_LOCK
  • NO_POWERBUTTON
  • NO_GEARS
• Add temperature display

• Added "Toto mode" (less filtering for another throttle sensing concept)
• Disable Lock & Poweroff when riding (when throttle is engaged)

• Added Steering Function (see update video )

• Added longrange (LR) version of Tx board (uses same NRF module like Rx)

• Set MOSI Pin to "Input" in standby (Critical fix, as this could damage battery)

• Add compiler error if address is not changed
• Increase tolerances on some values

• Increased NRF interrupt-to-readout delay

• Added connection diagrams

• Made connection to VESC UART optional (defined in SHARED_CONFIG)
• Added analog UBAT measurement

• Added component to make analog UBAT measurement more resitant to electromagnetic disturbance

• Add error timeout, to allow user to change gear during an error

• Added components to make Water Ingress Detection (Wetness Sensor) more resitant to electromagnetic disturbance

• Added BMS monitoring function
• Fixed Water Ingress Detection (Wetness Sensor) functionality

• Added more information, which Board and Processor to select for programming with Arduino IDE
• Renamed Source Files to not contain Version anymore
• Added Water Ingress Detection (Wetness Sensor) functionality

• Made Board 1mm smaller (each 0.5mm from top/bottom)
• Therefore shifted SPI vias and some other traces, changed style of motor pinheaders

• Found a error which depleated the battery in standby mode.
• Changed System.ino : disablePower() routine

• Added Trigger Opitions with -15 and -30°
• Made Selector Rotator and Selector Spring thinner
• Updated "AllTheSmallThings"

• Added Trigger spring with 1mm thickness (before: 1.2mm could lead to spring not being able to "roll in" all the way)

• Added protection diode to BMS measurement

• Better GND Connection for NRF Module
• Corrected Battery Polarity in whiteprint
• Added Diode to VREF
• Changed Reset to SMD Pad

Logo uses "watersport" and "Skate" by Adrien Coquet from https://thenounproject.com/. CC BY 3.0.

Thanks to Daniel for implementing and testing the magnetic connector! Tanks to Dyse for implementing the soft gears feature! Thanks to Juergen for the improved long range bodies!