ESC

Electronic Speed Controller

Description

The Electronic Speed Controller (ESC) is necessary to control the BLDC motors used for the wheels

Requirements

1. Bidirectional Control

   • The motors need to run both forwards and backwards. ESC must be bidirectional

2. Customization

   • Ability to configure acceleration curves and braking is necessary

3. Communication Interface

   • The ESCs should accept control inputs from an ESP32-WROVER-IE (e.g. PWM, UART, SPI)
   • The ESC should provide feedback which can be used to improve the control precision. (e.g. EMF)

4. Motor Compatibility:

   • Compatible with brushless motors (Turnigy Multistar 4225-610KV).
   • Voltage and current ratings meet or exceed motor specifications.

5. Physical Size and Weight:

   • Fits within the physical constraints of your robot's design.
   • Consideration of overall weight to maintain performance.

6. Power Management:

   • Integrated Battery Eliminator Circuit (BEC), needed to power electronics.
   • Efficient power usage to maximize battery life.

Aerostar 30A RVS G2

Specification	Value
Max Continuous Current	30A
Burst Current (10s)	40A
Input Voltage	2-4S LiPo (7.4V - 14.8V)
BEC Output	5-6V / 4A (Switchable)
Microprocessor	32-bit
Throttle Range	1100-1940µs
Weight	33g
Dimensions	46mm x 24mm x 12mm
Motor Type Compatibility	Brushless motors
Programming Options	Via transmitter or optional programming card
Reverse Function	Yes
BEC Type	SBEC (Switch Mode)
PWM Frequency	24kHz
Firmware	Proprietary (Aerostar G2)
Max Efficiency	90%+