How to Use EBB36: Examples, Pinouts, and Specs

The EBB36 by BigTreeTech is a versatile electronic circuit board designed for use in embedded systems. It serves as a control and interface module, enabling seamless communication between various electronic components. With its compact design and robust functionality, the EBB36 is ideal for applications requiring precise control, such as 3D printers, CNC machines, and robotics.

• 3D Printing: Used as a control board for stepper motors and sensors.
• CNC Machines: Facilitates precise motor control and signal processing.
• Robotics: Acts as an interface for sensors, actuators, and microcontrollers.
• IoT Devices: Enables communication between sensors and cloud-based systems.
• Prototyping: Ideal for testing and developing embedded systems.

The EBB36 is designed to provide reliable performance in a variety of applications. Below are its key technical details:

• Manufacturer: BigTreeTech
• Part ID: EBB36
• Input Voltage: 12V to 24V DC
• Communication Protocols: UART, I2C
• Microcontroller: STM32 series (specific model may vary)
• Stepper Motor Driver Support: Compatible with TMC series drivers
• Dimensions: 36mm x 36mm
• Mounting: M3 screw holes for secure installation
• Operating Temperature: -20°C to 70°C

The EBB36 features a well-organized pin layout for easy integration. Below is the pin configuration:

The EBB36 is straightforward to use in embedded systems. Follow the steps below to integrate it into your project:

1. Power Connection: Connect the VCC pin to a 12V-24V DC power source and the GND pin to ground.
2. Communication Setup:
   • For UART communication, connect the TX and RX pins to the corresponding pins on your microcontroller.
   • For I2C communication, connect the SCL and SDA pins to the I2C bus of your microcontroller.
3. Motor Control:
   • Connect the EN, DIR, and STEP pins to the stepper motor driver.
   • Ensure the motor driver is compatible with the EBB36 (e.g., TMC series).
4. GPIO Configuration: Use GPIO1 and GPIO2 for additional input/output functionality as needed.
5. Mounting: Secure the EBB36 to your project using M3 screws.

• Voltage Compatibility: Ensure the power supply voltage matches the EBB36's input range (12V-24V DC).
• Signal Integrity: Use short, shielded cables for UART and I2C connections to minimize noise.
• Heat Management: If operating in high-temperature environments, consider adding a heatsink or active cooling.
• Firmware Updates: Check for firmware updates from BigTreeTech to ensure optimal performance.

Below is an example of how to use the EBB36 with an Arduino UNO for stepper motor control:

// Example: Controlling a stepper motor with EBB36 and Arduino UNO

#define EN_PIN 2    // Connect to EN pin on EBB36
#define DIR_PIN 3   // Connect to DIR pin on EBB36
#define STEP_PIN 4  // Connect to STEP pin on EBB36

void setup() {
  pinMode(EN_PIN, OUTPUT);  // Set EN pin as output
  pinMode(DIR_PIN, OUTPUT); // Set DIR pin as output
  pinMode(STEP_PIN, OUTPUT);// Set STEP pin as output

  digitalWrite(EN_PIN, LOW); // Enable the stepper motor driver
}

void loop() {
  digitalWrite(DIR_PIN, HIGH); // Set direction to clockwise
  for (int i = 0; i < 200; i++) { // Rotate motor 200 steps
    digitalWrite(STEP_PIN, HIGH); // Generate step pulse
    delayMicroseconds(1000);      // Wait 1ms
    digitalWrite(STEP_PIN, LOW);  // End step pulse
    delayMicroseconds(1000);      // Wait 1ms
  }

  delay(1000); // Wait 1 second

  digitalWrite(DIR_PIN, LOW); // Set direction to counterclockwise
  for (int i = 0; i < 200; i++) { // Rotate motor 200 steps
    digitalWrite(STEP_PIN, HIGH); // Generate step pulse
    delayMicroseconds(1000);      // Wait 1ms
    digitalWrite(STEP_PIN, LOW);  // End step pulse
    delayMicroseconds(1000);      // Wait 1ms
  }

  delay(1000); // Wait 1 second
}

1. No Power to the Board:

   • Cause: Incorrect power supply voltage or loose connections.
   • Solution: Verify the power supply voltage is within the 12V-24V range and check all connections.

2. Stepper Motor Not Moving:

   • Cause: Incorrect wiring or missing step pulses.
   • Solution: Double-check the connections to the EN, DIR, and STEP pins. Ensure the Arduino code is generating step pulses.

3. Communication Failure:

   • Cause: Incorrect UART or I2C connections.
   • Solution: Verify the TX/RX or SCL/SDA connections and ensure the baud rate or I2C address matches.

4. Overheating:

   • Cause: High current draw or poor ventilation.
   • Solution: Reduce the load on the board or add a heatsink/fan for cooling.

• Q: Can the EBB36 be used with 5V logic microcontrollers?
  A: Yes, but you may need level shifters for proper communication.

• Q: Is the EBB36 compatible with TMC2209 drivers?
  A: Yes, the EBB36 is designed to work with TMC series drivers, including the TMC2209.

• Q: How do I update the firmware on the EBB36?
  A: Refer to BigTreeTech's official documentation for firmware update instructions.

• Q: Can I use the EBB36 for DC motor control?
  A: The EBB36 is optimized for stepper motors, but it can be adapted for DC motors with additional circuitry.