Firmware for an ESP32 with an analog microphone (amplified) attached to the internal ADC. Calculates the signal amplitude in various frequency bands and submits the results to an HTTP API.
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Thomas Kolb 523a7bdaf1 Increase FFT size and frequency resolution 2 months ago
data/etc Basic implementation of sampling+FFT+dBV/Hz calculation 2 months ago
src Increase FFT size and frequency resolution 2 months ago
.gitignore Basic implementation of sampling+FFT+dBV/Hz calculation 2 months ago
Makefile Basic implementation of sampling+FFT+dBV/Hz calculation 2 months ago
gen_lut.py Basic implementation of sampling+FFT+dBV/Hz calculation 2 months ago
platformio.ini Basic implementation of sampling+FFT+dBV/Hz calculation 2 months ago