Since our Raspberry Pi Pico W has two I2C interfaces, I’m going to connect the BME280 sensor to one of the interfaces. I2C is a serial communication protocol that uses two lines for exchanging information, a Serial Clock Line (SCL) and a Serial Data Line (SDA). It exposes an I2C interface for reading the sensor data it generates. To build an IoT project using the Raspberry Pi Pico W, the first thing that we need to do is to select a sensor that we are going to use to measure physical quantities such as temperature.įor our project, we will use the BME280, an environmental sensor built for indoor monitoring of temperature, pressure, and humidity. Image of Raspberry Pi Pico W Selecting the Sensor ( BM2480 ) This makes it well suited for building Internet of Things (IoT) applications as I’ll demonstrate in this article. The main difference between the Pi Pico W and the other Pico boards is that it comes with inbuilt WiFi connectivity, hence the W. Image of Raspberry Pi Pico Microcontroller Boards The Pico W is part of a family of microcontroller boards from Raspberry Pi that includes the Pi Pico, Pi Pico H, the Pi Pico W and the Pi Pico WH. Let us begin by taking a closer look at the Raspberry Pi Pico W microcontroller board. By the end of this step-by-step, you’ll be able to build a system for collecting sensor data, publish it to the cloud, and visualise the information on a dashboard. In this tutorial, I will show you how to build an IoT project using Raspberry Pi Pico W, MicroPython, and MQTT.

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