Articles on: Fungineers Documentation

Everything you need to know about: The Thor301

The Thor301 is a 20s (84v) VESC that is a successor of the Thor300. This controller is the flagship controller in Fungineer related products such as our Complete Controller Box modules and preassembled boards. This controller was built by and for the Vesc based, Onewheel community. Thank you to all the individuals who have greatly contributed to this controllers formation, some important names like Surfdado, Mario Contino, Nico Aleman, and many countless others. Your commitment to supporting this community hasn't gone unnoticed.






Install video for Complete Thor301 Controller Boxes;
https://youtu.be/lWv4SBqfu5c?si=2AXsOQLKd3l8GWlg




Pin out for the Thor301;


Thor301 Pin out Description ;

Specification

Value

Footprint

80x60mm with a 2 PCB design to save on space while providing maximum power

Nominal Input Voltage

66v to 74v (18s to 20s Lithium Ion)

Recommended Lower Voltage Limit

45v (Absolute lowest voltage while riding)

Absolute Maximum Operating Voltage

84v (Absolute highest voltage while riding)

Battery Current Consumption

Off < 400µA, Idle < 0.8W, Max (ext.) = 100A

Mosfets

300A continuous rated Infineon FETs

Peak Phase Current (ABS Max. in VESC Tool)

300A; recommended to limit to 250A

Efficiency

95% or greater

PWM Switching Frequency Range

10kHz to 60kHz (Center Aligned PWM)

Minimum Recommended Motor Phase-to-Phase Inductance

10µH

Supported Motor Types

BLDC and DC motors

Operating Ambient Temperature Range

-20°C to 60°C

Storage Temperature Range

-35°C to 85°C

Thermal Cutback

Reduces max output current above 80°C, complete cutoff at 100°C

Cooling

Superior IMS (aluminum) Power PCB to directly cool the FETs; no thermal pad or spacer needed.

Communication Protocols

Onboard ESP32 (Wifi, Bluetooth). CAN , VESC EXPRESS

LEDs

12V LEDs directly driven by the MCU; onboard status, front, and rear LED connectors

Buzzer

Onboard Buzzer

12V DC-DC Buck Convertor

Rated for 150V, 5A

Other pins

Exposed MCU pins for encoder support and future ESP32 Applications

Button

Normally Open

Aux Power Outputs

12v at max 5a, recommended 3a, 3.3v at max 1a, 5v at max 1a

Connector Outputs

12awg silicone wires to 4mm banana connectors, 12awg silicone wires to XT60 Male, JST GH 1.25mm

ADCs

ADC1 and ADC2 wired with 10k Ohm pulldown resistors


Firmware for Thor301, 6/20/25


Archived documentation on the Thor300




Updated on: 26/06/2025

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