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;
Description;
Firmware for Thor301, 6/20/25

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

Pin out for the Thor301;

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
Updated on: 22/06/2025
Thank you!