How to Use NUCLEO-G071RB: Examples, Pinouts, and Specs

The NUCLEO-G071RB is a development board manufactured by Nucleo, featuring the STM32G071RB microcontroller. This microcontroller is based on the 32-bit ARM Cortex-M0+ core, offering a balance of performance and power efficiency. The board is designed to provide a flexible and cost-effective platform for prototyping and developing embedded applications. It supports a wide range of peripherals, including GPIO, ADC, UART, SPI, I2C, and more. Additionally, the NUCLEO-G071RB is compatible with the Arduino ecosystem, making it easy to integrate with various expansion boards and shields.

• IoT (Internet of Things) devices
• Industrial automation and control systems
• Consumer electronics prototyping
• Educational and research projects
• Low-power embedded systems

The NUCLEO-G071RB features multiple pin headers, including Arduino-compatible headers and ST morpho connectors. Below is a summary of the pin configuration:

1. Powering the Board:

   • Connect the board to your computer via the micro-USB cable for power and programming.
   • Alternatively, supply power through the VIN pin (7V-12V) or the 5V pin.

2. Programming the Board:

   • Use the onboard ST-LINK/V2-1 debugger to program the microcontroller.
   • Compatible IDEs include STM32CubeIDE, Keil MDK, and IAR Embedded Workbench.
   • For Arduino users, install the STM32 core in the Arduino IDE.

3. Connecting Peripherals:

   • Use the Arduino-compatible headers to connect shields or external modules.
   • For advanced applications, use the ST morpho connectors to access additional pins and peripherals.

4. Uploading Code:

   • Write your code in the chosen IDE and compile it.
   • Upload the code to the board via the ST-LINK interface or USB.

• Ensure the input voltage does not exceed the specified range to avoid damaging the board.
• Use decoupling capacitors when connecting external components to reduce noise.
• Avoid connecting high-current loads directly to GPIO pins; use transistors or relays instead.
• When using the Arduino IDE, ensure the correct board and port are selected in the settings.

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

// Blink an LED on pin D13 (built-in LED on the NUCLEO-G071RB)

void setup() {
  pinMode(LED_BUILTIN, OUTPUT); // Set the built-in 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
}

1. The board is not detected by the computer:

   • Ensure the USB cable is functional and supports data transfer.
   • Check that the ST-LINK driver is installed on your computer.

2. Code upload fails:

   • Verify that the correct board and port are selected in the IDE.
   • Ensure no other application is using the ST-LINK interface.

3. Peripherals are not working as expected:

   • Double-check the pin connections and configurations in your code.
   • Ensure the peripheral's voltage and current requirements are within the board's limits.

4. The board overheats:

   • Check for short circuits or excessive current draw from connected components.
   • Ensure the input voltage is within the specified range.

Q: Can I use the NUCLEO-G071RB with Arduino shields?
A: Yes, the board is compatible with Arduino Uno R3 shields via its Arduino headers.

Q: Does the board support low-power modes?
A: Yes, the STM32G071RB microcontroller supports multiple low-power modes for energy-efficient applications.

Q: How do I reset the board?
A: Press the RESET button on the board or use the software reset functionality in your code.

Q: Can I use the board for CAN communication?
A: Yes, the STM32G071RB microcontroller includes a CAN interface, accessible via the ST morpho connectors.