How to Use Portenta H7: Examples, Pinouts, and Specs

The Portenta H7, manufactured by Arduino, is a high-performance microcontroller board designed for advanced applications. It features dual-core processing capabilities with an ARM Cortex-M7 running at 480 MHz and a Cortex-M4 running at 240 MHz. This board is ideal for applications requiring real-time processing, machine learning, IoT connectivity, and industrial-grade performance.

Common applications and use cases include:

• Machine learning and AI-based projects
• IoT (Internet of Things) devices and edge computing
• Industrial automation and robotics
• High-performance data processing
• Prototyping for smart devices and wearables

The Portenta H7 is packed with advanced features and capabilities. Below are its key technical specifications:

The Portenta H7 features a high-density connector with 80 pins. Below is a summary of the key pin configurations:

The Portenta H7 is versatile and can be used in a wide range of applications. Below are the steps to get started and important considerations:

1. Power the Board: Connect the Portenta H7 to a power source using the USB-C port or VIN pin.
2. Install Arduino IDE: Download and install the latest version of the Arduino IDE from the Arduino website.
3. Add Portenta H7 Board: In the Arduino IDE, go to Tools > Board > Boards Manager, search for "Portenta H7," and install the board package.
4. Connect the Board: Use a USB-C cable to connect the Portenta H7 to your computer.
5. Select the Board and Port: In the Arduino IDE, go to Tools > Board and select "Arduino Portenta H7." Then, select the appropriate port under Tools > Port.

The following example demonstrates how to blink an LED connected to pin D13:

// This example blinks the onboard LED on pin D13 of the Portenta H7.
// The LED will turn on for 1 second and off for 1 second in a loop.

void setup() {
  pinMode(LED_BUILTIN, OUTPUT); // Set the onboard LED pin as an output
}

void loop() {
  digitalWrite(LED_BUILTIN, HIGH); // Turn the LED on
  delay(1000);                     // Wait for 1 second
  digitalWrite(LED_BUILTIN, LOW);  // Turn the LED off
  delay(1000);                     // Wait for 1 second
}

• Power Supply: Ensure the input voltage is within the range of 5V to 16V to avoid damaging the board.
• Pin Voltage Levels: The GPIO pins operate at 3.3V logic levels. Avoid applying 5V to these pins.
• Wi-Fi and Bluetooth: Use the onboard connectivity features for IoT applications. Libraries like WiFi and Bluetooth are available in the Arduino IDE.

1. Board Not Detected in Arduino IDE:

   • Ensure the correct board and port are selected in the Tools menu.
   • Check the USB-C cable for data transfer capability (some cables are power-only).

2. Program Upload Fails:

   • Press the RESET button on the board and try uploading again.
   • Ensure the correct COM port is selected.

3. Wi-Fi or Bluetooth Not Working:

   • Verify that the appropriate libraries are installed and included in your sketch.
   • Check your network credentials for Wi-Fi connections.

Q: Can I use the Portenta H7 with external sensors?
A: Yes, the board supports a wide range of sensors via I2C, SPI, and UART interfaces.

Q: What is the maximum current output of the 3.3V pin?
A: The 3.3V pin can supply up to 500 mA, depending on the input power source.

Q: How do I reset the board to factory settings?
A: Hold the RESET button for 10 seconds to restore the board to its default state.

Q: Can I run machine learning models on the Portenta H7?
A: Yes, the dual-core architecture and onboard memory make it suitable for running TensorFlow Lite models.

By following this documentation, you can effectively utilize the Arduino Portenta H7 for your advanced projects.