The MagPi, Issue 108

The MagPi Issue 108This month’s issue of The MagPi Magazine includes another of my tutorials for those looking to get started with the MicroPython platform on the Raspberry Pi Pico microcontroller: a data logger, which makes use of the microcontroller’s ability to run saved code away from a computer and its flash file system.

Originally written as part of Get Started with MicroPython on Raspberry Pi Pico: The Official Guide, my guide to physical computing on Raspberry Pi’s first-ever microcontroller development board, this latest tutorial – one of the last in the book – covers file handling in MicroPython, which can often trip up new users: opening a file for writing erases any previous contents, giving you an empty file if you’re not careful.

The tutorial then moves on to reading and formatting temperature data from the on-board sensor, storing it in a file for later loading, and even running the Raspberry Pi Pico without being connected to a Raspberry Pi or other computer – making use of a special file name to load code on boot without user interaction.

The MagPi Issue 108 is available at now at all good newsagents and supermarkets, online with global delivery, or as a Creative Commons-licensed DRM-free zero-cost PDF download on the official website.