Start: 10:00

• Pitch bend is a little tricky to use.  The midi command is (0xE(channel), byte 1, byte 2) .  The two bytes are signed but negative values are not used so the range of each byte is 0-127(0x00-0x7f).  The two bytes combine to make a 14-bit number with a range of 0-16383, with zero being the most flat and 16383 being the most sharp.  This means to have no pitch bend it has to be set 8192.  And example of the three bytes sent for this command on channel 0 is (oxE0, 0x00, 0x40).  It is important to remember that this is not equal to 0x4000 but instead 0x2000 as the most significant bit of the first byte is dropped.
• Decided to change the way I was designing the new board in a way to minimize making mistakes on things which are still working.  Instead of starting from scratch I copied the board.   Things will still need to be moved but at least the traces are already connected.
• Phil suggested having the new board follow the atx form factor so it can be mounted in a computer case.  The area will have to be 24.5x25cm all output ports will be in the 16x5cm rectangle where the pc outputs are usually.
• Using a computer case gave me the idea that we might be able to use a pc power supply.  The peak current is fine the only problem is the minimum current on the 12 volt is 1 amp.  I will have to do some tests when the new stuff comes in.
• Measured and placed the mounting holes for the arduino on the new board schematics
• Found some of the connectors which will be needed to use ribbon wiring for the arduino in the pad2pad tool.

End: 6:00