Electrical Designer: Kenny Na

Description

BLDC motor controller compatible with 3S systems. Will initially be standalone, connecting to 12V -> 5V @ 4A Buck Converter + ELRS Board externally and then later physically integrated into another board revision for an all-in-one fixed wing solution.

Depending on the cost and performance of the board, it may be integrated elsewhere.

Documentation inspired by 12S ESC.

Requirements

• Should be powered by a 3S (12V) battery input.

  • In the context of integrating with the ELRS board, an XT60 connector should be provided, and additional PWM input from a header pin should placed.

• Must use the AM32 open-source firmware for motor control. (https://am32.ca)

  • This uses a sinusoidal algorithm to control the BLDC. (no FOC)

  • Has a strict MCU compatibility list (we would preferably use a smaller ST chip)

Components

Microcontroller Selection

Compatibility with AM32

AM32 provides a list of supported microcontrollers in their GitHub repository’s README file. Additionally, there is an MCU “target compatibility list” that can be found inside of the code.

Comparison Table