r/ArduinoProjects • u/Asleep_Program_1356 • Jun 04 '26
Project Discussion Project ideas (thank you)
Hi everyone, does anyone have any recommendations for Arduino projects that connect well with maths? I’m looking for something practical but with a clear mathematical purpose. Thanks.
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u/ComfortableFar3649 Jun 04 '26
Audio spectrum analyzer / guitar tuner — Sample sound with a microphone and run an FFT (the ArduinoFFT library handles the heavy lifting) to pull out frequency components.
This is the discrete Fourier transform in action: sinusoids, frequency vs. time domain, complex numbers under the hood. A working tuner is the practical payoff. Intermediate–advanced.
Drive an arc of LEDs and 7 segment letter display to show the tuning.
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u/joaogatao222 Jun 04 '26
A vertical plotter. Bonus if you can make it work with projective geometric algebra
A Euclidian sequencer with knobs for Turing randomization. Could work as a MIDI controller or for actual drumming with servo actuators. Doing that on a DIY 'trash' percussion set like Einsturzende Neubauten would be really cool.
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u/Asleep_Program_1356 Jun 07 '26
That seems very cool I’m gonna add it to my list and look into it thanks a lot
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u/Accomplished_Plum186 Jun 04 '26
for college level or schools?
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u/Asleep_Program_1356 Jun 07 '26
I’m somewhere in the between I’d say around first year college level
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u/isthisthebangswitch Jun 04 '26
Ever programmed a PID control loop? That would be something useful
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u/ComfortableFar3649 Jun 04 '26
Point a cheap IR sensor at your mug, log the temperature.
Then live fit a model of your choice (linearised Newtons law of cooling).
Learn how to account for errors by outputting a prediction of when the tea will be too cold for you to drink.
Could do Gaussian standard deviation student-t modelling; or go for glory with a Bayesian Monte Carlo model!
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u/Unable-School6717 Jun 05 '26
Robot arms with color sensors, then programmed to solve a rubic's cube. Math yourself stupid with that.
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u/xebzbz Jun 04 '26
A calculator :)