2021
MicroPython is an implementation of the Python 3 programming language, optimized to run microcontrollers. It's one of the options available for programming your Raspberry Pi Pico and a nice friendly way to get started with microcontrollers.
MicroPython can be installed easily on your Pico, by following the instructions on the …
Squeezing Space Invaders onto the BBC micro:bit's 25 pixels
MicroPython retro game in just 25 pixels
How much game can you fit into 25 pixels? Quite a bit it turns out.
This is a mini clone of arcade classic Space Invaders for the BBC micro:bit microcomputer. Using the accelerometer and two buttons for input, to can beat off wave after wave of aliens that advance …
2019
This little project combines the previous accelerometer-gyroscope code with the 3D rotating OLED cube to produce a 3D cube which responds to gyro input, making it possible to "peek around" the cube with simulated perspective, or make it spin with a flick of the wrist.
Take a look at those …
Measuring acceleration and rotation has a lot of useful applications, from drone or rocket stablisation to making physically interactive handheld games.
An accelerometer measures proper acceleration, meaning the rate of change of velocity relative to it's own rest frame. This is in contrast to coordinate acceleration, which is relative to …
2018
Creating a 3D wireframe cube with MicroPython on an OLED display
Basic 3D model rotation and projection
An ESP2866 is never going to compete with an actual graphics card. But it has more than enough oomph to explore the fundamentals of 3D graphics. In this short tutorial we'll go through the basics of creating a 3D scene and displaying it on an OLED screen using MicroPython.
This …
We've previously covered the basics of driving OLED I2C displays from MicroPython, including simple graphics commands and text. Here we look at displaying monochrome 1 bit-per-pixel images and animations using MicroPython on a Wemos D1.
Processing the images and correct choice of image-formats is important to get the most detail …
These mini monochrome OLED screens make great displays for projects — perfect for data readout, simple UIs or monochrome games.
| Requirements | |||
|---|---|---|---|
| Wemos D1 v2.2+ or good imitations. | amazon | ||
| 0.91in OLED Screen 128x32 pixels, I2c interface. | amazon | ||
| Breadboard Any size will do. | amazon | ||
| Wires Loose ends, or jumper leads. | |||
Setting …
Turning a Lucky Cat into a Persistence of Vision display
Python-powered Maneki-neko persistence of vision scroller
This build started as something simple: a lucky cat which would turn on and off automatically in response to some event. Since lucky cats are associated with good fortune the idea was to make one do this every time I got paid. This was working pretty well but unfortunately, after …
Below is a quick reference guide to Wemos D1 pin mapping for GPIO, I2C and SPI when working from MicroPython.
Pin mapping
The visible pin numbers written on the Wemos D1 does not relate to the internal pin numbering. In MicroPython you need to use the internal pin numbers to …
Pulse sensors have become popular due to their use in health-monitors like the Fitbit. The sensors used are cheap, simple and pretty reliable at getting a reasonable indication of heart rate in daily use. They work by sensing the change in light absorption or reflection by blood as it pulses …
Established 1980
