The Raspberry Pi Pico Board RP2040 is a compact and versatile microcontroller board developed by Raspberry. It is powered by the RP2040 chip, a dual-core ARM Cortex-M0+ processor, and is designed for a wide range of applications, from simple hobbyist projects to complex embedded systems. The board features 26 GPIO pins, USB connectivity, and supports programming in C, C++, MicroPython, and CircuitPython, making it an excellent choice for both beginners and experienced developers.

• IoT (Internet of Things) devices and automation
• Robotics and motor control
• Sensor interfacing and data logging
• Educational projects and prototyping
• Wearable electronics
• Home automation systems

• Processor: Dual-core ARM Cortex-M0+ @ 133 MHz
• Memory: 264 KB SRAM, 2 MB onboard QSPI flash
• GPIO Pins: 26 multi-function pins (3.3V logic level)
• Interfaces: I2C, SPI, UART, PWM, ADC
• USB: Micro-USB port for power, programming, and communication
• Operating Voltage: 3.3V (GPIO), 5V (via USB or VSYS pin)
• Power Supply: 1.8V to 5.5V (via VSYS pin)
• Dimensions: 51mm x 21mm
• Temperature Range: -20°C to +85°C

The Raspberry Pi Pico Board RP2040 has 40 pins, including power, ground, and GPIO pins. Below is a summary of the pin configuration:

For a complete pinout diagram, refer to the official Raspberry Pi Pico documentation.

1. Powering the Board:

   • Connect the board to a computer or USB power source using a Micro-USB cable.
   • Alternatively, supply power via the VSYS pin (1.8V to 5.5V).

2. Programming the Board:

   • Install the required software (e.g., Thonny IDE for MicroPython or the Arduino IDE for C/C++).
   • Put the board into bootloader mode by holding the BOOTSEL button while connecting it to your computer via USB.
   • Drag and drop the firmware file (e.g., MicroPython UF2) onto the mounted drive.

3. Connecting Peripherals:

   • Use the GPIO pins to connect sensors, actuators, or other peripherals.
   • Ensure that all connected devices operate at 3.3V logic levels to avoid damaging the board.

4. Example Circuit:

   • Connect an LED to GPIO 15 with a 330-ohm resistor in series.
   • Use the following MicroPython code to blink the LED.

from machine import Pin, Timer

led = Pin(15, Pin.OUT)

def toggle_led(timer): led.toggle() # Toggle the LED on/off

timer = Timer() timer.init(freq=2, mode=Timer.PERIODIC, callback=toggle_led)

• Always check the voltage and current ratings of connected peripherals to avoid damage.
• Use level shifters if interfacing with 5V devices.
• Avoid shorting GPIO pins or connecting them directly to power or ground.
• Use decoupling capacitors for stable power supply in noisy environments.

1. The board is not detected by the computer:

   • Ensure the Micro-USB cable supports data transfer (not just charging).
   • Check if the board is in bootloader mode (hold BOOTSEL while connecting).

2. GPIO pins are not working as expected:

   • Verify the pin configuration in your code.
   • Check for loose or incorrect connections in the circuit.

3. The board overheats or shuts down:

   • Ensure the power supply voltage is within the acceptable range (1.8V to 5.5V).
   • Avoid drawing excessive current from the GPIO pins.

• Can I power the board with a battery?
  Yes, you can power the board using a battery connected to the VSYS pin, as long as the voltage is between 1.8V and 5.5V.

• What programming languages are supported?
  The Raspberry Pi Pico supports C, C++, MicroPython, and CircuitPython.

• How do I reset the board?
  Disconnect and reconnect the power, or press the reset button if available.

For more detailed information, refer to the official Raspberry Pi Pico documentation.