commit 21b61658fc4a37190adc879307dd2513075e450d
Author: gauthiier <d@gauthiier.info>
Date:   Wed Nov 3 12:05:35 2021 +0100

    haha

diff --git a/essays/oct28a/oct28a.ino b/essays/oct28a/oct28a.ino
new file mode 100644
index 0000000..baa68c2
--- /dev/null
+++ b/essays/oct28a/oct28a.ino
@@ -0,0 +1,44 @@
+#define MIDI_CHANNEL 1
+#include <spi4teensy3.h>
+#include <EEPROM.h>
+#include <Haarnet.h>
+
+int min_c = 9999;
+int max_c = 0;
+
+float alpha = 0.2;
+int prev = 0;
+
+float freq = 125;
+
+void setup() {
+  Serial.begin(57600);
+
+  Music.init();
+  Music.setFrequency(freq);
+
+  prev = touchRead(A1);
+}
+
+int filter(int n) {
+  prev = (int) (alpha * n + (1.0 - alpha) * prev);
+  return prev;
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  
+  int d = touchRead(A1);
+  int f = filter(d);
+  
+
+  
+  if(d < min_c) min_c = d;
+  if(d > max_c) max_c = d;
+  int e = map(d, min_c, max_c, 0, 100);
+  Music.setDetune(e);
+  
+  Serial.print(d);Serial.print(",");Serial.println(f);
+  delay(100);
+
+}