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DTFM Detector

Overview

The device captures input from the microphone and decodes digit encoded using DTFM.

Schematic

schematic

Connections

Display to Arduino

Display Arduino
VCC 5V
GND GND
DIN D11
CLK D13
CS D9

Mic to Arduino

Mic Arduino
VCC 3.3V
GND GND
Out A0

Note: Connect 3.3V to AREF

Video

video

How to build

Run gradlew fatJar from processing folder

Capturing serial output to file

  1. script -a -t0 serial.txt
  2. screen -L /dev/tty.usbXXXXX <bauds>
  3. Stop screen: Ctrl+A + Ctrl+K
  4. Stop script: Ctrl+D

References