🔌 Raspberry Pi Pico W – UART Communication using MicroPython

A simple UART communication example for the Raspberry Pi Pico W using MicroPython.
The Pico listens for serial input and prints messages based on the received character.

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🧰 Requirements

• Raspberry Pi Pico / Pico W
• MicroPython firmware installed
• Thonny IDE
• USB-to-TTL converter or another UART device

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⚙️ Pin Configuration

Function	Pico Pin	Description
UART0 TX	GPIO0	Transmit Data
UART0 RX	GPIO1	Receive Data
GND	GND	Common Ground

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🚀 How It Works

• Send 'a' → Pico prints “data on”
• Send 'b' → Pico prints “data off”
• Communication speed: 115200 bps

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🧩 Extensions

• Control an LED or relay when receiving 'a' or 'b'.
• Add CRC or checksum for data validation.
• Send responses back to PC using serial.write().