Black Diamond
Black Diamond
Black Diamond
Black Diamond
Black Diamond
Black Diamond

Black Diamond

Regular price$500.00

  • $15 Flat Rate Shipping (Domestic Only)
  • In stock, ready to ship
  • Inventory on the way

*Usually ships in 1-2 business days.

The Black Diamond is the Little FOCer Rev4 ESC Electric Speed Controller with a Black Diamond metal surround. 

  • Uses Vesc based firmware
  • DC Input 12 Gauge wire to XT60  Male
  • Phase Output 12 Gauge wire to 4mm Female Bullet connectors
  • On board IMU for balance applications 
  • Integrated Bluetooth ESP32
  • DRV less design
  • Sophisticated fault detection for over-current, over-voltage, gate drive errors, and more
  • Easy On/Off capability with latching or momentary switch of choice
  • ESD Protected IO
  • 72mm x 84mm PCB footprint
  • ADC1 and ADC2 internally equipped with 10k Ohm pulldown resistors. 
  • support for phase filters
  • ASS support (Advanced Sensorless Startup)

New features in Black Diamond Rev4:

  • Water and dust resistant 
  • Black Diamond enclosure with four M3 mounting holes
  • Smart LED Control
  • 5V 2A accessory power supply
  • 30% Cooler operation vs the v3.x 
  • Off=400µA
  • Momentary Pushbutton Support with Auto-shutdown
  • Safety-limited 5V supplies at the On/Off and Hall connectors. Shorting these supplies will not cause brownout of the entire controller

*Note that the UART and ADC connections are now different than the typical VESC "COMM" connector

Specification Value
Nominal Input Voltage 28V to 72V (8s to 20s Lithium Ion)
Recommended Lower voltage limit 24V
Absolute Maximum Operating Voltage 84V
Battery Current Consumption


Idle< 0.8W

Max (ext.) = 100A

Peek Phase Current 250A
Peak Efficiency 95% or greater
PET 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
Input Capacitance 602µF
Operating Ambient Temperature Range -20C to 50C
Storage Temperature Range -35C to 85C
Thermal Cutback The controller linearly reduces maximum output current when the internal controller temperature is above 80C. Complete cutoff at 100C, the control board over-temperature threshold
Communication Protocols 



1xBlutooth Low Energy


On board IMU

Management Interfaces

USB Type-C


Management Software

VESC 6 open source project compatible 



The Black Diamond is based upon the VESC®-Project. VESC is a registered TM, owned by Benjamin Vedder


Order Processing Time
We require 2-3 business days to process and pack your order. This means that your order will typically ship out within 2-3 business days after it has been placed. Please note that our processing time may be longer during peak shopping periods, sales, or holidays.

Shipping Rates and Methods
We currently offer standard shipping to the United States and select international destinations. Our shipping rates are calculated based on the weight and destination of your order, and will be displayed at checkout.

Delivery Times
While we strive to provide accurate delivery estimates, we cannot guarantee delivery dates or times. Delivery times will depend on your location, the shipping method you select, and the carrier's delivery schedule. Please note that delivery may be delayed due to factors outside of our control, such as weather, customs clearance, or carrier delays.

Tracking Your Order
Once your order has shipped, you will receive a shipping confirmation email with a tracking number. You can use this tracking number to track your package online through the carrier's website.

International Shipping
For international orders, please note that the recipient is responsible for any customs fees, import duties, taxes, or other fees that may be imposed by their country's customs office.

Returns and Refunds
Please refer to our Returns and Refunds policy for information on how to return or exchange your order.

If you have any questions about our shipping policy or your order, please contact us at


Makers PEV strives to be the best in the industry when it comes to open source EV creation.

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The Little FOCer is simply a motor controller. It was created to run any electric motor.

Yes but the pint/GT uses proprietary connectors therefore will need some DIY in order to make it work.

You can use any battery that fits in your build up to 20s! At this time there are a few manufacturers that make compatible upgraded batteries. 2 that we would recommend include Z Battery Solutions and The Board Garage. is the best collection of information at this time and I would recommend searching there for common issues but if you have more specific needs feel free to reach out to us at

The BMS choice is ultimately up to the user but a few popular options at the moment are ZBMZ, the ennoid and changing an xr/pint bms to charge only.

The Makers PEV BMS is in the works and coming soon.

Yes we ship anywhere we can from the United States. International shipping rates will apply and are not included in our $15 flat rate shipping.

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No, our product replaces it completely and does not work with it in any way. You can choose to use either the Littler FOCer or your FM controller, but you cannot use them together.

No, at this time we are here to support people in their own builds and provide the equipment needed to do so.

VESC is the software that the Little FOCer hardware runs on similar to how Linux is the operating system for many different computers.