Little FOCer Rev4 ESC Electric Speed Controller - BYOH
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Little FOCer Rev4 ESC Electric Speed Controller BYOH (Bring your own Heat-sink version)
- The Little FOCer without a heat sink
- 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 Rev4:
- 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 |
Off=400µA 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 |
1xCAN 1xUART 1xBlutooth Low Energy |
Gyroscope |
On board IMU |
Management Interfaces |
USB Type-C Bluetooth |
Management Software |
VESC 6 open source project compatible |
The Little Focer V4 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
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Tracking Your Order
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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 support@makerspev.com.