First Power up Raspberry Pi Pico and install MicroPython firmware, on Raspberry Pi.

It's the first time I plug-in the new Raspberry Pi Pico to Raspberry Pi 4B/4G, install MicroPython firmware on Raspberry Pi Pico using Thonny Python IDE, and play around MicroPython REPL.

Play around in with MicroPython REPL:

To get information:
>>> import uos
>>> uos.uname()

Get CPU frequency in hertz:
>>> import machine
>>> machine.freq()

Get memory info:
>>> import micropython
>>> micropython.mem_info()

Remark to enter boot mode:

In boot mode, the Pico will be recognized as a removable driver named "RPI-RP2". And you can install MicroPython firmware in Thonny (as shown in the video). You can also manually download firmware .uf2 and drag to "RPI-RP2", refer to "Flash the MicroPython firmware" section on MagPi - Programming Raspberry Pi Pico with Python and MicroPython.

In my first power-up of Raspberry Pi Pico, it enter boot mode automatically, no need to press and hold the on board BOOTSEL while powering up, as shown in the video. Once installed, Pico will not enter boot mode automatically. 

To enter boot mode again:

- Disconnect USB cable to Raspberry Pi Pico.

- Press and hold the onboard BOOTSEL button.

- Connect USB cable to Raspberry Pi Pico.

- Pico will be recognized as a removable driver named "RPI-RP2".

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Useful links:

~ Getting Started with Raspberry Pi Pico

~ Download The official Raspberry Pi Pico Guide: Get Started with MicroPython on Raspberry Pi Pico (PDF)

~ Raspberry Pi Pico Python SDK (PDF)

~ Raspberry Pi Pico C/C++ SDK (PDF)

~ Getting started with Raspberry Pi Pico - C/C++ development with Raspberry Pi Pico and other RP2040-based microcontroller boards (PDF)

~ MagPi - Programming Raspberry Pi Pico with Python and MicroPython

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Useful Tips: 

~ BOOTSEL button broken! How to reset and enter BOOTLOADER mode using Python code; without BOOTSEL button and un-plug/re-plug USB.
~ Restore factory Flash memory

More exercise for Raspberry Pi Pico

MicroPython:
~ Install/Update MicroPython firmware to Raspberry Pi Pico using Thonny Python IDE

~ Raspberry Pi Pico + 128x64 I2C SSD1306 OLED

~ Simple example of UART

~ Raspberry Pi Pico/MicroPython + 320x240 ILI9341 SPI Display, using jeffmer/micropython-ili9341 library

~ Raspberry Pi Pico/MicroPython + HC-08 BLE 4.0 UART Module

~ Raspberry Pi/Python remote control LED on Raspberry Pi Pico/MicroPython with HC-08 + ILI9341 SPI Display via Bluetooth

~ ESP32 BLE Client remote control Raspberry Pi Pico/HC-08 via Bluetooth

~ Raspberry Pi Pico/MicroPython + ST7789 SPI IPS LCD

~ Pair HC-05 and HC-06 Bluetooth 2.0 Modules

~ Pair two HC-05 (Master & Slave)

~ Connect ESP-01S (ESP8266) to Raspberry Pi Pico/MicroPython, using AT Command

~ Pico/MicroPython + ESP-01S (AT Command) act as TCP Client connect to Raspberry Pi/Python TCP Server

~ TCP socket communication between (RPi Pico+ESP-01S) and ESP32 via WiFi

~ read internal temperature sensorand display on ILI9341 SPI Display graphically

~ RPi Pico/MicroPython + ILI9341 SPI Display with Touch, using rdagger/micropython-ili9341

~ RPi Pico + ESP32-S remote control ESP32-DevKitC via WiFi TCP, using MicroPython.

~ Change CPU Frequency and monitor Temperature, at runtime, with graphical display on ili9341 SPI display.

~  exercise of using uasyncio
~ get MicroPython version programmatically

~ Raspberry Pi Pico/MicroPython generate QR Code and display on SSD1306 I2C OLED

CircuitPython:

~ CircuitPython on Raspberry Pi Pico

~ Raspberry Pi Pico/CircuitPython + ST7789 SPI IPS LCD

~ Raspberry Pi Pico/CircuitPython + ssd1306 I2C OLED

~ RPi Pico/CircuitPython x AHT20+BMP280 (Temperature, Humidity and Pressure Sensor Module), display on ssd1306 I2C OLED

~ Raspberry Pi Pico/CircuitPython + ILI9341 SPI Display with Touch

~ Raspberry Pi Pico/CircuitPython + ESP32/adafruit nina-fw (as WiFi/BLE Co-Processor)

~ ST7789 SPI (2" 240x320/1.54" 240x240) IPS RGB Display, on Raspberry Pi Pico/CircuitPython

~ ov7670/ov2640 + ST7789 (IPS Display) on Raspberry Pi Pico/CircuitPython 7.0.0 alpha 6

~ CircuitPython 7.0.0 run on Raspberry Pi Pico RP2040
~ Raspberry Pi Pico/CircuitPython, access LSM303(Accelerometer/Magnetometer) and L3GD20(Gyroscope)

Arduino Framework:

~ Install Arduino Mbed OS RP2040 Boards on Arduino IDE, to program Raspberry Pi Pico in Arduino framework.

~ RPi Pico (Arduino framework) + 128x160 ST7735 SPI TFT, using TFT_eSPI library.