properly map values

6 years ago · e35fa13802
parent a6e18b7bb8
commit e35fa13802
1 changed files with 1 additions and 1 deletions
--- a/acrylic-art-code-nolib/acrylic-art-code-nolib.ino
+++ b/acrylic-art-code-nolib/acrylic-art-code-nolib.ino
@ -14,7 +14,7 @@ void loop() {
    //average += 256-log(256-analogRead(0) / 4) * (256 /5.55); // old linearization

    // linearization using resistance to lux relationship 
-    average += (1250000.0 * pow(1023 - analogRead(0), -1.4059) - 73) / 2.08;
+    average += map(1250000.0 * pow(1023-analogRead(0), -1.4059), 73, 339, 0, 128);
    delay(3);
  }
  average /= ss;