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+---
+id: i53wxv
+date: 2026-02-04T17:15:41+0300
+languages: [ru]
+aliases:
+
+reviews:
+
+tags:
+- draft
+- knowledge
+- snippet
+---
+# Отправка MIDI данных на все каналы по всем портам
+
+Этот скрипт полезен для тестирования, какой канал принимает данные на устройстве.
+
+```python
+#!/usr/bin/env python3
+import rtmidi
+import time
+
+midiout = rtmidi.MidiOut()
+ports = midiout.get_ports()
+print("Available ports:")
+for i, p in enumerate(ports):
+    print(f"{i}: {p}")
+
+if ports:
+    # Try ALL ports one by one
+    for i, port_name in enumerate(ports):
+        print(f"\n--- Trying port {i}: {port_name} ---")
+        midiout.open_port(i)
+
+        # Try different channels (1-16)
+        for channel in range(16):
+            print(f"  Testing channel {channel+1}...")
+            # Note On (0x90 + channel, note, velocity)
+            midiout.send_message([0x90 + channel, 60, 100])
+            time.sleep(0.2)
+            midiout.send_message([0x80 + channel, 60, 0])
+
+        midiout.close_port()
+else:
+    print("No MIDI ports found!")
+```
+
+## Up
+- 
+
+## Related
+- [Roland FP-e50 MIDI](fdaw8b)