The Little FOCer

The Little FOCer

The Little FOCer

In the fast-paced world of One Wheeled boarding and other motor-driven applications, having a reliable Electric Speed Controller (ESC) is paramount. The Little FOCer Rev3.1 ESC, a Bring Your Own Heat-sink (BYOH) version, takes the spotlight with its impressive features and recent upgrades.

Key Features:

Compact Design without Heat Sink: The Little FOCer Rev3.1 boasts a sleek design without a heat sink, offering a space-saving and efficient solution for one-wheel boarding enthusiasts.

Vesc-Based Firmware: Utilizing VESC-based firmware ensures compatibility and performance optimization for a seamless riding experience.

Robust Construction: With 12 Gauge wire inputs, XT60 Male connectors, and 4mm Female Bullet connectors for phase outputs, the Little FOCer Rev3.1 is engineered for durability and reliability.

Integrated IMU: Equipped with an on-board Inertial Measurement Unit (IMU), this ESC is designed for precision and stability in balance applications.

Bluetooth Connectivity: The integrated Bluetooth NRF 52840 allows for easy connectivity and remote monitoring, enhancing user experience.

DRV Less Design: Featuring a DRV-less design, the Little FOCer Rev3.1 offers improved efficiency and reliability by eliminating potential DRV (Gate Driver) issues.

Fault Detection: Enjoy peace of mind with sophisticated fault detection, including over-current, over-voltage, gate drive errors, and more.

User-Friendly Operation: The ESC is designed for convenience with an easy On/Off capability using a latching switch of your choice.

ESD Protected IO: The controller ensures Electrostatic Discharge (ESD) protection for Input/Output, enhancing overall system durability.

Optimized Layout: Capacitors and JST connectors are strategically positioned opposite the mosfets, allowing the ESC to be easily mounted to a metal plate or custom heat sink – ideal for compact installations like one-wheel boarding controller boxes.

Rev3 Upgrades:

Increased Current Limits: Enjoy higher performance with increased current limits, catering to diverse user needs.

Support for Phase Filters:
The addition of phase filters enhances motor control capabilities, providing smoother operation.

Advanced Sensorless Startup (ASS) Support:
The Little FOCer Rev3.1 now supports Advanced Sensorless Startup for improved motor control during startup.

Technical Specifications:

  • Nominal Input Voltage: 28V to 72V (8s to 20s Lithium Ion)
  • Recommended Lower Voltage Limit: 24V
  • Absolute Maximum Operating Voltage: 84V
  • Peak Phase Current: 250A
  • Efficiency: 95% or greater
  • PWM Switching Frequency Range: 10kHz to 60kHz
  • Supported Motor Types: BLDC and DC Motors
  • Operating Temperature Range: -20°C to 50°C
  • Storage Temperature Range: -35°C to 85°C

Communication Protocols:

Communication protocols refer to a set of rules and conventions that define how data is transmitted and received between devices in a network or system. In the context of the Little FOCer Rev3.1 ESC, the communication protocols specify the agreed-upon methods and formats for exchanging information between the ESC and other components or devices, such as a microcontroller, sensors, or a user interface.

  • CAN (Controller Area Network): A widely used protocol in automotive and industrial applications for real-time communication between microcontrollers and devices.

  • UART (Universal Asynchronous Receiver-Transmitter): A serial communication protocol commonly used for asynchronous communication between devices.

  • Bluetooth Low Energy (BLE): A wireless communication protocol designed for short-range communication with low power consumption, often used for connecting devices such as smartphones, tablets, or other peripherals.

Management Interfaces:

  • USB Type-C
  • Bluetooth

Management Software:

  • VESC 6 open source project compatible

Start Your VESC™ Build:

The Little FOCer Rev3.1 ESC stands as a testament to innovation in electric one wheeled boarding, offering a compact, high-performance solution for riders seeking optimal control and reliability. Whether you're navigating city streets or perfecting tricks off-road, this ESC delivers a thrilling and dependable experience. Get yours today HERE

Need VESC™ Build Assistance?

Here at OSBS we offer full VESC assembly services. If you are interested in starting your VESC journey with us, please check out our service page and fill out all the necessary forms to proceeed with your build. HERE


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