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Raspberry Pi Pico RP2040 Microcontroller Board Arduino MicroPython Dev Module

RP2040-Zero Raspberry Pi Microcontroller Board Dual-Core Cortex M0+ 2MB Flash 29GPIO
Raspberry Pi RP2040 Wi-Fi Development Board ESP8285 Pico W Compatible IoT
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Description

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🖥️ Raspberry Pi Pico RP2040 Microcontroller Board – Arduino & MicroPython Compatible

Overview

The Raspberry Pi Pico RP2040 is a powerful yet affordable dual-core ARM Cortex-M0+ microcontroller board designed by the Raspberry Pi Foundation. Compact, reliable, and feature-rich, it’s perfect for beginners, students, and professionals working on IoT, robotics, automation, or embedded systems.

With support for MicroPython, Arduino IDE, and C/C++, the Pico offers a fast and flexible platform for learning, prototyping, and building real-world applications.

🌟 Key Features

  • ⚙️ Processor: Dual-core ARM Cortex-M0+ @ 133 MHz

  • 💾 Memory: 264 KB SRAM + 2 MB QSPI Flash

  • 🔌 GPIO Pins: 30 pins total (26 usable) with multiple functions

    • 3 × 12-bit ADC inputs

    • 16 × PWM channels for precise motor or LED control

  • 🔄 Interfaces: SPI, I²C, UART (serial communication)

  • 🔋 Power Supply: 1.8 V – 5.5 V (via Micro-USB or VSYS)

  • 🔧 Programmable I/O (PIO): 8 × state machines for custom protocols

  • 💡 Onboard Components:

    • Power LED and user LED (GPIO 25)

    • BOOTSEL button for drag-and-drop programming

  • 🔌 USB Interface: USB 1.1 (host or device)

  • 📐 Compact Design: 51 × 21 mm PCB with castellated edges (breadboard or SMD mounting)

  • 🌍 Supported Languages: MicroPython, Arduino C/C++, CircuitPython

📊 Specifications

Parameter Description
Microcontroller RP2040 dual-core ARM Cortex-M0+
Clock Speed Up to 133 MHz
Flash Memory 2 MB (onboard QSPI)
SRAM 264 KB
Operating Voltage 3.3 V logic
Power Input 1.8 V – 5.5 V (Micro-USB or VSYS)
Interfaces SPI, I²C, UART
Analog Inputs 3 × 12-bit ADC
PWM Outputs 16 channels
PIO Units 8 state machines
Dimensions 51 × 21 mm
Weight ~3 g

🧩 Popular Applications

  • IoT development & Wi-Fi-enabled devices

  • Robotics and motor control systems

  • Data logging and sensor interfaces

  • Automation controllers and smart home devices

  • DIY electronics & maker projects

  • STEM education and coding workshops

📦 Package Includes

  • 1 × Raspberry Pi Pico RP2040 Microcontroller Board (Compatible Version)

⚠️ Note

This is a Pico-compatible RP2040 board. It offers identical performance and pinout to the official Raspberry Pi Pico, with possible minor cosmetic or component differences.

📌 Code Examples – Raspberry Pi Pico (RP2040)

📋 Overview

The Raspberry Pi Pico is a powerful 32-bit microcontroller board based on the RP2040 chip. It supports:

✔ Arduino
✔ MicroPython
✔ C / C++ (official SDK)

Common use cases include:

  • GPIO control

  • PWM (LEDs, servos)

  • ADC (sensors)

  • I²C / SPI communications

  • Timers and interrupts

This section includes starter examples for both Arduino and MicroPython to help customers hit the ground running.

🟢 MicroPython Getting Started

1) Install MicroPython Firmware

  1. Hold BOOTSEL and connect the board via USB

  2. Release BOOTSEL when the RP2040 shows up as a USB mass storage device

  3. Drag & drop the official MicroPython UF2 firmware file onto the device

🔌 MicroPython – Blink LED (Onboard)

Pico’s onboard LED is usually on GPIO 25.

from machine import Pin
import timeled = Pin(25, Pin.OUT)

while True:
led.toggle()
time.sleep(0.5)

📡 MicroPython – PWM (LED Brightness)

from machine import Pin, PWM
import timepwm_led = PWM(Pin(25))
pwm_led.freq(1000)

while True:
for duty in range(0, 65535, 5000):
pwm_led.duty_u16(duty)
time.sleep(0.02)

for duty in range(65535, 0, –5000):
pwm_led.duty_u16(duty)
time.sleep(0.02)

📊 MicroPython – ADC (Read Analog Sensor)

This reads a sensor on GPIO 26 (ADC0).

from machine import ADC, Pin
import timeadc = ADC(Pin(26))

while True:
raw = adc.read_u16() # 0–65535
voltage = raw * (3.3 / 65535)
print(“Raw:”, raw, “Voltage:”, round(voltage, 2), “V”)
time.sleep(0.5)

🔵 Arduino Getting Started

Arduino IDE Setup

  1. Open Arduino IDE 2.x

  2. Go to Boards Manager

  3. Install Raspberry Pi RP2040 Boards

  4. Select Raspberry Pi Pico as the board

  5. Choose Upload Method (USB or SWD via programmer)

🔌 Arduino – Blink LED

const int PIN_LED = 25;

void setup() {
pinMode(PIN_LED, OUTPUT);
}

void loop() {
digitalWrite(PIN_LED, HIGH);
delay(500);
digitalWrite(PIN_LED, LOW);
delay(500);
}

⚙️ Arduino – PWM (LED)

const int LED_PIN = 25;

void setup() {
pinMode(LED_PIN, OUTPUT);
analogWriteResolution(8); // 8-bit resolution (0–255)
analogWriteFrequency(LED_PIN, 1000); // 1 kHz
}

void loop() {
for (int duty = 0; duty <= 255; duty++) {
analogWrite(LED_PIN, duty);
delay(10);
}
for (int duty = 255; duty >= 0; duty–) {
analogWrite(LED_PIN, duty);
delay(10);
}
}

📈 Arduino – ADC Read

const int ADC_PIN = 26;

void setup() {
Serial.begin(9600);
}

void loop() {
int raw = analogRead(ADC_PIN);
float voltage = raw * (3.3 / 4095.0); // 12-bit ADC range on Pico
Serial.print(“Raw: “);
Serial.print(raw);
Serial.print(” Voltage: “);
Serial.println(voltage, 2);
delay(500);
}

🧠 Notes & Tips

✔ GPIO numbering on Pico corresponds to physical pin labels
✔ ADC read range is 0–4095 in Arduino by default
✔ PWM resolution can be configured using analogWriteResolution()
✔ Pico’s USB can act as a native USB device (e.g., serial, MIDI, HID) with advanced libraries

🧠 Common Use Cases

  • Display sensor data

  • Control servos

  • Sensor data logging

  • I²C LCD/OLED displays

  • Wireless board combos (e.g., RP2040 + ESP modules)

Additional information

Weight 40 g
Dimensions 260 × 160 × 20 mm

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