tidying

Teensy_prototype/README.md

@@ -1,6 +1,6 @@
 # Teensy Audio Board Prototype
 
-This prototype works with the [PS-354](https://media.digikey.com/pdf/Data%20Sheets/InnoSenT/200730_Data%20Sheet_IPS-354_V1.5.pdf) Radar Sensor from InnoSenT connected directly to the mic input of the [Teensy Audio Board](https://www.pjrc.com/store/teensy3_audio.html). The PS-354 has a builtin gain of 27dB. The mic input of the audio board can regulate it's gain from 0 to 63dB. Together that's enough to detect cars, pedestrians and bicycles from the third floor of a building. When measured directly at the edge of the street the signal goes into clipping, so that the mic gain has to be set to about 55 to 58 dB. 
+This prototype works with the [IPS-354](https://media.digikey.com/pdf/Data%20Sheets/InnoSenT/200730_Data%20Sheet_IPS-354_V1.5.pdf) Radar Sensor from InnoSenT connected directly to the mic input of the [Teensy Audio Board](https://www.pjrc.com/store/teensy3_audio.html). The IPS-354 has a builtin gain of 27dB. The mic input of the audio board can regulate it's gain from 0 to 63dB. Together that's enough to detect cars, pedestrians and bicycles from the third floor of a building. When measured directly at the edge of the street the signal goes into clipping, so that the mic gain has to be set to about 55 to 58 dB. 
 
 The teensy is programmed to continuously calculate a 1024 point FFT and transmit the data over Serial to the computer. The data are taken there by a [Processing](https://processing.org/) Script and visualized as a [waterfall diagram](https://en.wikipedia.org/wiki/Waterfall_plot). Additionally the Teensy calculates the frequency with highest amplitude which is optionally drawn as a line into the graph. This represents the mean speed of a moving object detected by the radar. 
 

Teensy_prototype/Teensy_fft.ino → Teensy_prototype/Teensy_prototype.ino

@@ -33,9 +33,9 @@ AudioMixer4              mixer;
 
 AudioInputI2S            mic;           
 AudioOutputI2S           headphone;           
-AudioConnection          patchCord1(mic, 0, mixer, 0);
+AudioConnection          patchCord1(mic, 1, mixer, 0);
 AudioControlSGTL5000     sgtl5000_1;     
-AudioConnection          patchCord3(mic, amp1);
+AudioConnection          patchCord3(mic, 0, amp1, 0);
 AudioConnection          patchCord4(amp1, 0, fft1024, 0);
 AudioConnection          patchCord5(mixer, 0, peak1, 0);
 AudioConnection          patchCord6(mixer, 0, headphone, 0);
@@ -51,7 +51,7 @@ void setup() {
 
   // Enable the audio shield, select input, and enable output
   sgtl5000_1.enable();
-  sgtl5000_1.inputSelect(AUDIO_INPUT_MIC);
+  sgtl5000_1.inputSelect(AUDIO_INPUT_MIC); //AUDIO_INPUT_LINEIN
   sgtl5000_1.micGain(mic_gain); 
   //sgtl5000_1.lineInLevel(0);
   sgtl5000_1.volume(.5);
@@ -63,7 +63,7 @@ void setup() {
   pinMode(PIN_A8, OUTPUT);
   digitalWrite(PIN_A8, LOW); 
 
-  Serial.begin(1000000);
+  Serial.begin(9600);
 }