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micro:bit

19 Posts authored by: Cabe Atwell
The complete and running 10-LED PWM Controller. A messy rat's nest of project wires on this project. It was unavoidable, unfortunately. (Images & video via me.)     Driving three LEDs was a good start. The real goal is to control a lot of them. My next step on this mission is controlling ten LEDs. I did do it, technically. However, I lost one key functionality, recording the sequences. The issue came down to insufficient memory for storage.   However, I was able to control ...
The three LED Light Show. The start of everything. (All images and videos from me.)   Like programming a sound sequence, I thought it would be useful to do the same thing with light. In this project we will start working on developing a Light Show Sequencer.   To make it simple, I will start with just 3 LEDs. I used the same kind of interface as in the Sound Sequencer project. Although the buttons are clicky, it does the job. Feel free to use any sort of keypad you want.   The ...
The Micro:bit Accelerometer Theremin. Cool case, but no lights this time. (All Images: ME)   I didn’t care for the sound that the last accelerometer Theremin produced. I wanted something that produced a pure square wave sound. The result was more than I could have wanted. It sounds like Atari sounds better than the Atari Punk Console a few projects back. There are two modes of this Theremin. One is a pure square wave. The second is “smooth” mode, where the sound can be a ...
  I’ve already created a slew of sound based Micro:bit projects: BBC Micro:bit – Light Theremin BBC Micro:bit – ADVANCED Light Theremin BBC Micro:bit – Atari Punk Console BBC Micro:bit – 8-Button Melody Synthesizer BBC Micro:bit – 16-button True-Tone Sound Sequencer & Synthesizer BBC Micro:bit – Accelerometer Tone Adjuster and MicroSynth Case BBC Micro:bit – Accelerometer Theremin   One thought always popped up. How can ...
The Micro:bit Accelerometer Theremin. Cool case, but no lights this time. (All Images: ME)     Continuing on the theme of the Accelerometer Tone Adjusting project, I want to use the idea of very little hardware in building another Theremin. You can see the Micro:bit Light Based Theremin project after this link. I also made an ADVANCED Light Theremin after this link. The Theremin is a constantly adjusting tone based on some sort of analog input, in most cases. Instead of using light t ...
The Micro:bit Accelerometer Tone Adjuster. (Image: ME)   This project takes the Micro:bit and lets it change tones as you move it around, using the onboard accelerometer as the variable input. This is sort of like the light Theremins I made in these two projects: basic and advanced. This time, I just have to use the Micro:bit itself. I also wanted to put the Microbit into something I could hold and move around. Additionally, I wanted to use an amplified speaker.   The software work ...
16-button sequence synthesizer. An easy build, for sure. (via me)     I wanted to take the last project a few steps into another direction. I’ve gone from melodies to specific notes. I wanted the user to decide what they hear, so to speak. I’ve also gone from 8 buttons to 16.   The biggest issue I wanted to fix, placing silences and variable note duration within the user-programmed sequences.   Luckily, a lot of the steps in setting up this project are the sa ...
This is the Multi-button Synth in "button play mode."   (UPDATE: The next version of this project is done, see the "16-button sequence synthesizer.")     What’s the logical next step to a synthesizer? Playing multiple sounds or melodies. Accessible by multiple buttons. That’s my goal in this week’s Microbit project. To take the concept a little further, I wanted to have a way to sequence and time when I play different sounds. To make a basic version of this id ...
The Atari Punk Console, a name that Kaustic Machines dubbed, is an astable square wave driving a monostable oscillator. This was done with two 555 timer ICs, typically. The output was sound that resembled those produced by the old Atari 2600. It’s origin lays in a 1980 Radioshack book called “Engineer’s Notebook: Integrated Circuit Applications.” This image, above, is the typical setup for the Atari Punk Console. (Image credit: Wikipedia)   In this project, I tho ...
Happy Valentine's Day 2019!!!   It occurred to me that I should probably make it heart themed, for Valentine's Day. So, here it is. It responds to the galvanic skin response with a heart shape that grows in size. Download the Microbit GSS Heart files at the end of this post. Here is a short video of it in action.       -----------------------------------------------------------------------------------------------------     Testing myself. Note the 3rd L ...
(Above) The Advanced Theremin as I had it set up. I placed the sensors separate to allow each hand to control a tone. (via me)     The last BBC Micro:bit Theremin project had you create a single channel for sound. This, “ADVANCED,” Theremin will up that to two channels. The idea here is to create two different tones at the same time. One high pitched and the other lower.     The software works as follows: - When the Micro:bit powers up, you set the ambient lig ...
A shot of the complete circuit. (via me)   Digital musical instruments are in every facet of music today. Arguably, you can trace digital music’s origin to the original Theremin. Today, the Theremin is more of an art installation than a practical instrument. Synthesizers can imitate just about any sound, including Theremins. This project is the first step towards making a simple light-based Theremin.    The software works as follows: - When the Micro:bit powers up, you ...
A partial build of the Scary Tapping project above.     This started out as a Halloween project – Scary Tapping. It makes the sound of someone, or something, tapping behind a wall, floor, what have you. But it seems to have turned into a "robot spoon musician." It isn't a bad thing to have a just a general tapping machine.   This is more of an exploration of servo control using the Micro:bit. You can control the rotation and the sequence the servos take.     ...
Even being bathing in technology, my sink still leaks, and I don’t know until it’s flooded in the cupboard. It’s almost ridiculous to NOT know when your basement is flooded. Tubs, washing machines, even the refrigerator could leak at any time.   Anxiety is the inspiration for this Micro:bit project.   This is version one of the water sensor. In other words, the simplest way of alarming someone when water is detected. A flashing light and buzzing speaker is what th ...
Legend World Adventure Quest, Championship Edition Super Turbo   “If you only ever play one video game in your entire life, this is it!” – Game Xtremist Chronicle “To be in the presence of true game genius is a gift few will experience. Play this game!” – Video Game Journal Magazine “Wow! Just Wow. Perfection in pixels.” – Game journalist person   Game description; On a hollow planet, 400 times the diameter of Earth, Xzanik fac ...