MotorCell

MotorCell is an ultra-compact, shaftless PCB motor designed for high-speed, low-torque applications. Featuring planar PCB windings, sensorless control, and a unique pancake design, MotorCell is ideal for robotics, DIY projects, and art installations. This innovative motor simplifies integration by eliminating the need for external sensors while offering speed control via PWM.

Setting Up the MotorCell

1. Connecting Your MotorCell

• Pins:
  • IN: PWM input for speed control.
  • OUT: Speed reading (requires pull-up resistor - library automatical setup up this pin through software)
  • FR: Direction control.

2. Using the MotorCell Library

Install the library from the Arduino Library manager and include it in your Arduino project. Multipel examples as avilable to get you started.

#include "MotorCell.h"

#define IN_pin1 2
#define OUT_pin2 3
#define FR_pin2 1

MotorCell myMotorCell(IN_PIN, OUT_PIN, FR_PIN);

void setup() {
    myMotorCell.Init();
}

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MotorCell Library Functions

1. Init

• Function: Init()
• Description: Sets up the GPIO pins and initializes the motor.

myMotorCell.Init();

2. Spin

• Function: Spin(uint8_t speed_percent)
• Description: Spins the motor at the specified speed level and return the current rpm value.

uint16_t rpm = myMotorCell.Spin(75); // Spin at 75% speed

3. SpinPID (for CodeCell/ESP32 devices)

• Function: SpinPID(uint16_t target_rpm)
• Description: Uses PID control to maintain a target RPM and return the current rpm value.

uint16_t rpm = myMotorCell.SpinPID(10000); // Spin at 10,000 RPM

4. ReverseSpin

• Function: ReverseSpin()
• Description: Reverses the motor's direction.

myMotorCell.ReverseSpin();

5. RPMRead

• Function: RPMRead()
• Description: Reads the motor's current RPM.

uint16_t currentRPM = myMotorCell.RPMRead();

6. MaxSpin

• Function: MaxSpin()
• Description: Spins the motor at maximum speed.

myMotorCell.MaxSpin();

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Usage Notes:

1. Speed Control:

   • Motor speed decreases as load increases.

2. 3D-Printed Parts:

   • Recommended press-fit diameter: 16.4mm–16.6mm.
   • Use superglue for additional security if needed.

3. Soldering:

   • Take care when soldering near the rotor's magnets; the tip may be drawn to the motor.

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Example Code

Here’s a basic example to get started with MotorCell:

#include "MotorCell.h"

#define IN_pin1 2
#define OUT_pin2 3
#define FR_pin2 1

MotorCell myMotorCell(IN_PIN, OUT_PIN, FR_PIN);

void setup() {
    myMotorCell.Init();         // Initialize MotorCell
    myMotorCell.Spin(50);       // Spin at 50% speed
}

void loop() {
    uint16_t rpm = myMotorCell.RPMRead();  // Read current RPM
    Serial.println(rpm);
    delay(1000);
}

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