Resources and Advice for Building CircuitPython Projects
The Real Python Podcast
How to Dimming LEDs With a for Loop
The problem with dimming these LEDs with a for loop is that it's slow. But if you cast the pixel data into a NumPy array and then do the just NumPy dot add, like a ray dot add on that with a negative number, that will do that really fast. And so that makes new pixel animations look so much better. It's amazing how much better it looks just from the just from this simple approach.
Are you looking to advance your CircuitPython projects? Would you like a collection of resources and tools to help you along your path? This week on the show, Tod Kurt is here to discuss building projects with CircuitPython.
Tod has been working with embedded electronics for a long time and has been an active member of the Arduino community. He recently started to build projects using CircuitPython, and it has become his preferred prototype method.
He shares software resources, hardware tools, and advice about working with CircuitPython and embedded electronics. We discuss several of his music hardware projects and the libraries and modules that he uses for synthesis. He also shares a powerful online prototyping tool to plan your project before spending money or plugging in a soldering iron.
Course Spotlight: Python Basics: Reading and Writing Files
In this video course, you’ll learn how to move data back and forth between your Python programs and external software by reading and writing files. You’ll practice reading and writing data stored in the CSV file format, one of the most widely supported file formats for transferring tabular data.
Topics:
- 00:00:00 – Introduction
- 00:02:17 – Tod’s background and ThingM
- 00:06:37 – The Bootloader Podcast
- 00:09:58 – Why did you move from C to Python?
- 00:13:47 – Starting new projects with CircuitPython instead of Arduino
- 00:17:14 – Advantages of the Arduino language
- 00:21:07 – Modules that extend CircuitPython with C
- 00:25:23 – Synthesis and sample playback in CircuitPython
- 00:32:54 – Video Course Spotlight
- 00:34:13 – ulab for NumPy-like functionality in CircuitPython
- 00:39:20 – Raspberry Pi Pico as inexpensive project board
- 00:46:08 – STEMMA QT and breadboards
- 00:48:40 – Powering projects with a USB power bank
- 00:51:25 – Software tools - tio, circup, and discotool
- 00:56:55 – CircuitPython tricks GitHub repo
- 00:59:44 – Wokwi simulator for CircuitPython and Raspberry Pi Pico
- 01:01:25 – PCB board design resources
- 01:03:27 – todbot projects on Tindie
- 01:06:11 – Hardware tools for projects
- 01:08:21 – What are you excited about in the world of Python?
- 01:09:42 – What do you want to learn next?
- 01:11:30 – How can people follow your work online?
- 01:12:50 – Thanks and goodbye
Show Links:
- todbot blog – Random experiments, circuits, and code by Tod Kurt.
- todbot - YouTube
- ThingM
- The Bootloader Podcast
- The CircuitPython Show Podcast
- CircuitPython
- Arduino - Home
- Extending CircuitPython: An Introduction - Adafruit Learning System
- Adafruit Feather RP2040 with DVI - HDMI Output
- Episode #75: Building With CircuitPython & Constraints of Python for Microcontrollers
- displayio – Native helpers for driving displays - CircuitPython
- Mozzi
- synthio: Support for multi-channel audio synthesis - Adafruit
- ulab: Crunch Numbers fast in CircuitPython - Adafruit Learning System
- Raspberry Pi Pico RP2040 - Adafruit
- What is STEMMA? - Adafruit STEMMA & STEMMA QT
- USB Power bank - Current Favorite - Amazon
- tio: A simple serial device I/O tool - GitHub
- circup: CircuitPython library updater - GitHub
- discotool: USB Arduino type boards discovery library and tool - GitHub
- circuitpython-tricks: Some CircuitPython tricks, mostly reminders to myself - GitHub
- Wokwi Simulator - CircuitPython on Raspberry Pi Pico Project
- EAGLE - PCB Design And Electrical Schematic Software - Autodesk
- KiCad EDA - Schematic Capture & PCB Design Software
- Introducing KiCanvas - Stargirl (Thea) Flowers
- PicoTouch - Capsense MIDI keyboard - Tindie
- PicoStepSeq PCB from todbot synth toys - Tindie
- USB Voltage and Current Tester - Amazon
- USB Hub with Individual Power Switches - Amazon
- CPython Internals Book – Real Python
- ThinkDSP: Free Book on Digital Signal Processing in Python
- todbot blog – Random experiments, circuits, and code by Tod Kurt.
- Tod Kurt (todbot) (@todbot@mastodon.social) - Mastodon
- Adafruit Discord - @todbot
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