MIDI Channel Changer/Combiner

Have you ever needed to change incoming MIDI data from different channels to one specific MIDI output channel? The MIDI Channel Changer/Combiner can be used to combine MIDI channels (1-16) onto a single MIDI output channel. 

  

	MIDI Channel Changer ITEM#: MIDICHANCHG PRICE:  €35.00

The MIDI Channel Changer/Combiner unit utilizes:

 

• A Miduino kit including a suitable pre-programmed Atmega168,
• A 2.1mm power socket, and associated LED, 
• A MIDI detection LED,
• A 4-way DIP switch, which selects the MIDI channel at power-on, shown in table 1
• A MIDI 5-pin DIN input socket,
• A MIDI 5-pin DIN output socket, 
• The circuit schematic is available,

 

 

The MIDI Channel Changer/Combiner  requires:

• A 9 Volt battery or equivalent 9 Volt DC power source

 

Operation:

The unit detects the incoming MIDI data, and if it is a MIDI channel command, converts it to a single MIDI channel which corresponds to the DIP switch MIDI channel (1-16) setting.

If any System Common, Realtime or Exclusive events are detected they are passed directly from the input to the output. System Exclusive messages will be sent until the End of System Exclusive message is received. However if a system realtime message is received during a System Exclusive message it is also passed to the output.

  

Assembly:

The assembly is straightforward and well documented. This design does not include a USB chip, it is designed to use a FTDI USB 232-TTL cable to program the microcontroller.  However since the cable plugs directly into the Miduino, you can use one cable for multiple projects.

   

MIDI Wiring:

The MIDI IN and OUT connectors use  5-Pin 180 degree DIN sockets. Note that the MIDI IN/OUT wiring is polarised and the correct pins should be used.

 

Download:

Open the  source code file and copy and paste it into the Arduino programme and save it as a .PDE file.

 

  

MIDI Specification: 

 The MIDI Channel Changer commands are all channel (1-16) dependent. The system will also work with MIDI running status. Here are details of the various MIDI Messages.