How to Use Vietduino Uno USB-C: Examples, Pinouts, and Specs

The Vietduino Uno USB-C is a versatile microcontroller board developed by Makerlabvn. It is based on the ATmega328P microcontroller and is designed to be an easy-to-use platform for electronics enthusiasts, hobbyists, and professionals alike. The board is compatible with a wide range of shields and accessories, making it suitable for a variety of applications, from simple LED control to more complex robotics projects.

Common applications of the Vietduino Uno USB-C include:

• Prototyping and learning electronics and programming
• Building DIY projects and gadgets
• Creating interactive artworks
• Developing educational tools and kits
• Designing embedded systems

• Microcontroller: ATmega328P
• Operating Voltage: 5V
• Input Voltage (recommended): 7-12V
• Input Voltage (limit): 6-20V
• Digital I/O Pins: 14 (of which 6 provide PWM output)
• Analog Input Pins: 6
• DC Current per I/O Pin: 20 mA
• DC Current for 3.3V Pin: 50 mA
• Flash Memory: 32 KB (ATmega328P) of which 0.5 KB used by bootloader
• SRAM: 2 KB (ATmega328P)
• EEPROM: 1 KB (ATmega328P)
• Clock Speed: 16 MHz
• LED_BUILTIN: Pin 13
• USB Connection: USB-C

1. Powering the Board:

   • You can power the Vietduino Uno USB-C via the USB-C connection or with an external power supply through the power jack. The recommended voltage range is 7-12V.

2. Connecting to a Computer:

   • Connect the board to your computer using a USB-C cable to upload sketches and communicate with the board.

3. Writing a Sketch:

   • Use the Arduino IDE or compatible software to write and upload your code to the Vietduino Uno USB-C.

4. Accessing I/O Pins:

   • Utilize the digital and analog pins to interface with sensors, actuators, and other components.

• Always disconnect the board from power sources before making or altering connections.
• Ensure that the voltage levels on the I/O pins do not exceed the specified limits to prevent damage.
• Use a current limiting resistor when connecting LEDs to the digital pins.
• Avoid drawing more than the maximum current from the 3.3V and 5V pins to prevent overheating and damage to the voltage regulator.

• Board Not Recognized: Ensure that the USB-C cable is properly connected and that the drivers are installed.
• Sketch Not Uploading: Check the selected board and port in the Arduino IDE, and ensure the correct bootloader is used.
• Unexpected Behavior: Verify the wiring and components in your circuit, and check for code errors.

• If the board is not recognized, try a different USB-C cable or port on your computer.
• For upload issues, double-check the board and processor settings in the Arduino IDE.
• Use the built-in LED on pin 13 to test basic functionality by uploading the Blink example sketch.

Here is a simple example code that blinks the onboard LED:

// Pin 13 has an LED connected on most Arduino boards.
int led = 13;

// The setup routine runs once when you press reset:
void setup() {
  // Initialize the digital pin as an output.
  pinMode(led, OUTPUT);
}

// The loop routine runs over and over again forever:
void loop() {
  digitalWrite(led, HIGH);   // Turn the LED on (HIGH is the voltage level)
  delay(1000);               // Wait for a second
  digitalWrite(led, LOW);    // Turn the LED off by making the voltage LOW
  delay(1000);               // Wait for a second
}

Remember to select "Vietduino Uno USB-C" as your board when uploading this sketch if it is listed in the Arduino IDE, or select "Arduino/Genuino Uno" if it is not.

This documentation provides an overview of the Vietduino Uno USB-C board. For more detailed information, refer to the datasheets and resources provided by Makerlabvn.