Magnifying glass light board

PDF_Flipperzero Little Dolphin CC1101 Expansion Board M1101D Module.zip

Altium_Flipperzero Little Dolphin CC1101 Expansion Board M1101D Module.zip

PADS_Flipperzero Little Dolphin CC1101 Expansion Board M1101D Module.zip

BOM_Flipperzero Little Dolphin CC1101 Expansion Board M1101D Module.xlsx

93421

Brushless ESC driver based on STC32G without a hall

Hardware components: The system includes an STC32G core board, a brushless ESC, a motor, and other necessary connectors and cables. The ESC receives control signals from the core board and drives the motor to rotate.
Software control: The program on the core board generates control signals that drive the motor.

1. Brushless Motor Principle and
Internal Structure: A brushless motor contains three coils (usually called phases), each connected at one end and led to the outside. Inside the motor is an internal rotor with a permanent magnet having N/S poles.
Rotation Principle: By energizing the motor in a specific sequence, the rotor can rotate. For example, applying a positive voltage to phase A and a negative voltage to phase B will cause the rotor to rotate to a certain position; changing the energizing sequence will continue the rotation.
Commutation: To maintain continuous rotor rotation, the energized coils need to be changed periodically. One revolution typically requires six commutations, each with a commutation angle of 60 degrees.
2. Hall-less Rotor Position Detection:
Traditional Methods: Rotor position detection is usually achieved using Hall sensors or magnetic encoders, but these methods increase cost or complexity.
Hall-less Method: The STC32G series drive solution uses hall-less technology, typically using zero-crossing detection or software algorithms to detect rotor position. Zero-crossing detection determines the rotor position by comparing the three-phase voltages with the motor's neutral point voltage.
3. STC32G Brushless ESC Drive PCB Motor
Hardware Components: The system includes an STC32G core board, a brushless ESC, a motor, and other necessary connectors and cables. The ESC receives control signals from the core board and drives the motor to rotate.
Software Control: The program on the core board generates control signals, which are processed by the ESC to drive the motor. The program also needs to detect the rotor position and adjust the control signals based on the detected position. PCB
Design: The PCB (Printed Circuit Board) is the foundation for connecting various hardware components. When designing the PCB, factors such as the rationality of wiring, component layout, and heat dissipation need to be considered.

July 30.mp4

Three-phase brushless motor driver - STC32G - Hallless - PID control - OLED display - Serial port drawing.rar

PDF_STC32G Hallless Brushless ESC Driver.zip

Altium-based brushless ESC driver without a HALL (STC32G) for STC32G.zip

PADS_STC32G-based brushless ESC driver without a HALL.zip

BOM_Driver for STC32G Brushless ESC without Hall.xlsx

93422

L9110 Four-Channel Motor Drive Module

L9110 Four-Channel Motor Drive Module

The L9110 four-channel motor drive module has four built-in L9110 motor drive chips, which can drive four motors.