SparkFun Embedded Software program Engineer Malcolm breaks down why MicroPython has been such a sport changer.
In case you’re a programmer interested in embedded programs, or an embedded engineer trying to pace up your prototyping course of, MicroPython may simply be your new favourite device. On this video put up, we’ll discover what MicroPython is, the way it works, and stroll by a hands-on instance utilizing SparkFun’s Qwiic ecosystem. Comply with alongside the video with this weblog!
Prepared to leap into embedded programs with out the C/C++ studying curve?
What’s MicroPython?
MicroPython is a light-weight implementation of Python 3 designed to run on microcontrollers with out an working system. Whereas commonplace Python (CPython) is understood for its giant library assist and ease of use, it is also too cumbersome for many embedded platforms. MicroPython strips away the pointless options whereas including assist for {hardware} interfacing, making it excellent for embedded growth.
Why Use Python on Microcontrollers?
Python is an interpreted language, that means it interprets and executes code line by line utilizing a runtime atmosphere referred to as the Python Digital Machine (PVM). Not like compiled languages like C or Rust, Python does not produce a static object file. As an alternative, the interpreter should be current on the gadget operating the code.
MicroPython contains its personal light-weight runtime that brings this performance to embedded {hardware}. It permits builders to put in writing readable, easy-to-debug scripts that work together immediately with microcontroller peripherals.
Advantages of MicroPython
- Cross-platform assist: One software program supply file works throughout completely different growth boards.
- REPL entry: Use a terminal emulator to work together immediately along with your board, run particular person strains of code, and get prompt suggestions.
- Fast prototyping: Skip the compile-load-run cycle. Tweak values, take a look at instructions, and tune parameters on the fly.
- {Hardware} abstraction: Simply interface with I2C, SPI, UART, and GPIO pins with out deep platform-specific information.
{Hardware} Setup
For the demo in our video, we used:
SparkFun IoT RedBoard – RP2350
WRL-27708
Qwiic Cable – 100mm
PRT-14427
After flashing MicroPython onto the RedBoard, we linked it to a Home windows pc and used the Thonny IDE to entry the MicroPython REPL (Learn-Eval-Print Loop). From right here, we might execute Python instructions immediately on the board.
Dwell Coding Instance
With the REPL open, we:
- Imported the SparkFun Qwiic TMP117 MicroPython module.
- Created an occasion of the sensor class.
- Referred to as the
start()methodology to initialize the sensor. - Learn dwell temperature information utilizing
read_temp_c().
This real-time interplay with the {hardware} is highly effective for debugging and preliminary growth.
Going Additional: Internet hosting a Internet App with MicroPython
We took issues a step additional by creating an online app served immediately from the RedBoard. Utilizing MicroPython’s built-in WLAN assist and the Micro Internet Framework:
- We arrange the board as a Wi-Fi entry level.
- Served a thermometer internet app with excessive/low limits and visible indicators.
- Linked to the community and seen dwell temperature updates in a browser.
This demonstration reveals how simple it’s to create absolutely useful IoT purposes with minimal code.
Why MicroPython Issues
MicroPython is not only a handy device for newbies, it is a critical productiveness booster for seasoned engineers too. With its REPL interface, {hardware} libraries, and minimal setup overhead, you may spend much less time configuring and extra time constructing.
Assets
Viva open supply! Keep secure, be sort, and joyful prototyping!
