Release APC mini mk2 — Pad Blinker (sync to transport) v1.0.0

MIDI/tomaszpio_APC Pad Blinker (Sync to Transport).jsfx

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+desc: APC Pad Blinker (Sync to Transport)
+author: tomaszpio
+version: 1.0.0
+about:
+  APC Mini mk2: blink a chosen pad LED **once per quarter note** while the DAW is **playing**.
+  - Output is via **Note On velocity** (single-color LED).
+  - Tempo comes from host `tempo` (falls back to 120 BPM).
+  - Uses pad note numbers (APC pads are typically 0–63; script slider allows up to 77).
+
+  Sliders:
+  1) Pad MIDI Note (0–77) — which pad to blink
+  2) Enable Blinking (Off/On)
+  3) Pad Color (0–127) — velocity used when LED is ON
+
+  MIDI out (LED): status `0x96` (Note On, ch. 7), data1 = pad note, data2 = color or 0.
+
+slider1:0<0,77,1>Pad MIDI Note (0-63)
+slider2:1<0,1,1{Off,On}>Enable Blinking
+slider3:3<0,127,1>Pad Color (0-127)
+
+@init
+note = 0;
+interval = 0.5;     // seconds per beat (updated from tempo)
+beat_timer = 0.0;
+is_on = 0;          // LED state toggle
+should_blink = 1;   // from slider2
+play_state = 0;     // host transport state (read by JSFX)
+color = 0;          // from slider3
+
+@slider
+note = slider1;
+should_blink = slider2;
+color = slider3;
+
+@block
+// Read host tempo (BPM); use 120 if unavailable
+tempo = tempo > 0 ? tempo : 120;
+interval = 60 / tempo; // quarter-note period
+
+// `play_state` is provided by host (nonzero when playing/recording)
+
+@sample
+beat_timer += 1 / srate;
+
+velocity = 0;
+
+// Blink only when transport is active and blinking is enabled
+(play_state ? (
+  should_blink == 1 ? (
+    beat_timer >= interval ? (
+      beat_timer -= interval;
+      is_on = is_on == 0 ? 1 : 0;
+      velocity = is_on ? color : 0;
+      midisend(0, 0x96, note, velocity); // Note On LED update (ch. 7)
+    );
+  );
+) : 0);