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By Kevin McAleer, 3 Minutes
Welcome to Lesson 1 of the Raspberry Pi Pico with MicroPython - GPIO Mastery course. In this lesson, we will discuss the different types of GPIO pins available on the Raspberry Pi Pico and their basic functions. We will cover the following types of pins:
Raspberry Pi Pico with MicroPython - GPIO Mastery
GPIO (General Purpose Input/Output) pins are used to connect electronic components to the Raspberry Pi Pico. In this lesson, you will learn:
The Raspberry Pi Pico has several types of GPIO pins, including:
Digital I/O pins
PWM
ADC
I2C
SPI
Digital I/O pins can be used to send or receive digital signals, which can be used to control LEDs, read button presses, or communicate with other digital devices.
PWM pins can be used to control the brightness of LEDs, the speed of motors, or the position of servos by adjusting the duty cycle of the PWM signal.
PWM pins
ADC pins can be used to read analog signals from sensors, such as temperature or light sensors, and convert them into digital values that can be processed by the Pico.
ADC pins
I2C and SPI pins can be used to communicate with other devices, such as sensors, displays, or other microcontrollers, using the I2C or SPI protocol.
SPI pins
After you have completed this lesson, you will have a solid understanding of the various GPIO pins available on the Raspberry Pi Pico. This knowledge will enable you to confidently use these pins in your projects, allowing you to interface with various devices and components.
The code below imports the machine module, which provides access to hardware-related functionality on the Raspberry Pi Pico.
machine
Then it initializes a GPIO pin with the number 25 as an output pin using the machine.Pin class, and assigns it to the variable pin.
machine.Pin
pin
Finally, it sets the value of the output pin to 1 using the pin.value(1) method. This means that the pin will output a voltage of 3.3V, which can be used to turn on a connected device, such as an LED.
pin.value(1)
import machine pin = machine.Pin(25, machine.Pin.OUT) pin.value(1)
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