slttblep
| Face-Detection-on-Microcontrollers | slttblep | |
|---|---|---|
| 1 | 7 | |
| 1 | 12 | |
| - | - | |
| 10.0 | 0.0 | |
| almost 3 years ago | over 3 years ago | |
| C | C++ | |
| - | GNU General Public License v3.0 or later |
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Face-Detection-on-Microcontrollers
slttblep
- Can I use an arduino?
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I Over-Engineered a Fast Fourier Transform for Arduino
The oscillator bit is, but I don't appear to have uploaded the one with the filter which I will need to find.
https://github.com/ErroneousBosh/slttblep
The filter is just an SVF with, with a precomputed expo scale "bent over" at the top to correct for quantisation. From that the two SVF coefficients ω/Q and ω*Q are calculated every time there's a control update and of course because you can't divide on an Arduino it uses a lookup table of reciprocals. I could probably use a "wider" table of 16-bit values for better precision.
- Seeking Arduino Nano help - diy synth/noise/sound projects that are fairly straightforward compact and simple to take on. I'm just horrible at code. At least #mozzi code, I can't find the encyclopedia of Mozzi synth-centric commands
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Looking for some learning advice!
This code here will run on an Arduino and read an analogue input which sets the pitch of a bandlimited sawtooth waveform coming out one of the PWMs.
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Arduino synth, a smol start
Take a look at https://github.com/ErroneousBosh/slttblep for an example of an anti-aliased sawtooth on an Arduino. Since you're using an 8-bit Arduino you can't really multiply and can't divide at all, so you have to use the titular Stupid Lookup Table Tricks to "divide" by multiplying by a reciprocal, and use a precomputed table for the function that "smooths out" the step.
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Digital signal synthesis with fixed sampling rate
I've waffled long enough. Get an Arduino of some sort, and run this on it and read through the code until it makes more sense :-)
What are some alternatives?
pico - A minimalistic framework for real-time object detection (with a pre-trained face detector)
Helios-One-Synth-V4.6 - MIDI controlled Arduino synth using the Mozzi audio Library
TeensyEyes - Based on adafruit/Uncanny_Eyes, M4_Eyes, and mjs513/GC9A01A_t3n
PlatformIO - Your Gateway to Embedded Software Development Excellence :alien:
Face-Detection-on-Microcontrolle
Arduino-VDCO - Voltage Controlled Digital Core Multimode Oscillator using Mozzi library on Arduino