SparkFun Embedded Software program Engineer Malcolm breaks down why MicroPython has been such a sport changer.
If you happen to’re a programmer interested in embedded methods, or an embedded engineer trying to velocity up your prototyping course of, MicroPython may simply be your new favourite software. On this video publish, we’ll discover what MicroPython is, the way it works, and stroll by means of a hands-on instance utilizing SparkFun’s Qwiic ecosystem. Observe alongside the video with this weblog!
Prepared to leap into embedded methods 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 customary Python (CPython) is thought for its giant library help and ease of use, it is also too cumbersome for many embedded platforms. MicroPython strips away the pointless options whereas including help for {hardware} interfacing, making it excellent for embedded growth.
Why Use Python on Microcontrollers?
Python is an interpreted language, which means it interprets and executes code line by line utilizing a runtime surroundings referred to as the Python Digital Machine (PVM). In contrast to compiled languages like C or Rust, Python does not produce a static object file. As an alternative, the interpreter have to be current on the system 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 help: 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 traces of code, and get on the spot suggestions.
- Speedy 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 may execute Python instructions immediately on the board.
Reside 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 reside 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 Net App with MicroPython
We took issues a step additional by creating an internet app served immediately from the RedBoard. Utilizing MicroPython’s built-in WLAN help and the Micro Net 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 considered reside temperature updates in a browser.
This demonstration reveals how simple it’s to create totally practical IoT functions with minimal code.
Why MicroPython Issues
MicroPython is not only a handy software for learners, 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.
Sources
Viva open supply! Keep protected, be sort, and blissful prototyping!
