updated microbit example just to keep it simple

cpmpercussion · Aug 21, 2024 · 5cf2b81 · 5cf2b81
1 parent 3f5279c
commit 5cf2b81
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Showing 2 changed files with 5 additions and 3 deletions.
diff --git a/configs/serial-example.toml b/configs/serial-example.toml
@@ -27,5 +27,5 @@ timescale = 1
 
 # Serial mapping
 [serial]
-port = "/dev/tty.usbmodem102" # default GPIO serial port on raspberry pi
+port = "/dev/tty.usbmodem1102" # default GPIO serial port on raspberry pi
 baudrate = 115200 # a typical default choice of baudrate
diff --git a/examples/microbit_serial_example.py b/examples/microbit_serial_example.py
@@ -46,15 +46,17 @@ def float_to_freq(value_in):
     """maps a float 0-1 to a frequency."""
     base = 220
     top = 880
-    return int(base + (value_in * (top - base)))
+    out = int(base + (value_in * (top - base)))
+    out = max(0, min(out, 999))
+    return out
 
 def play_freqs(freqs):
     global last_played_freqs
     if freqs != last_played_freqs:
         eff = audio.SoundEffect(
             freq_start=freqs[0], 
             freq_end=freqs[1], 
-            duration=freqs[2]*3,
+            duration=freqs[2],
             vol_start=255,
             vol_end=255
         )