aka V-C-F

 When Guido Scognamiglio (Zioguido, GSi) released the D9U drawbard kit on GM-Lab I ordered the kit and built it. It was my first experience of the programming an Arduino Pro Micro and thanks to his excellent code I was able to modify and improve the unit. I then went on to build many projects based on the Pro Micro. GM-LAB I sold the D9U then picked up a set of old Hammond MIDI drawbars so I was able to build a unit based on Guido's design. One thing I didn't like about the D9U was the tiny micro switch at the back of the unit. This was used to switch between 2 sets of drawbars. I realised that it would be easy to use a rotary switch instead and then change the code to allow the adjustment of 4 sets of drawbars. Th CCs for the drawbars are stored in an array: int CCMap[4][9] = { { 12, 13, 14, 15, 16, 17, 18, 19, 20},  // Upper B { 40, 41, 42, 43, 44, 45, 46, 47, 48 },  //  Upper A { 80, 81, 82, 83, 84, 85, 86, 87, 88 },  // Lower B { 50, 51, 52, 53, 54, 55, 56, 57 ,58 } , // Lo

The Nord Electro 6D has a Fatar TP/80 keybed which is the same as organs like the Mojo 61. However, I was surprised at how stiff the action was. I ended up swapping the key springs with an M-Audio Keystation 61-ES. I think this might use the Fatar TP/9 synth keybed.  That reduced the Keydown by 10g - not huge but it feels a lot better for smears etc. The Prophet 6 uses a variant of the TP/9 There has been much interest in the UB-Xa and some people are unhappy with the lightness of the keyboard so here are my unscientific results: Model No 1ps 3.56g Weight in grams needed to move key from rest White Key Length mm C-C 1 octave mm Nord E6D 15p 53 To the LH edge of the C key Prophet 6 14p 49 136 164 UB-Xa 8p 29 136 164 Behringer Odyssey 6p 21 138 164 So the Electro  with  new springs is very close to the Prophet 6 but the UB-Xa is 20g lighter than the P6. It would definitely be worth replacing the springs if they are the same size as Fatars. They are easy to replace - just carefully lift t

Title says it all really. I have several analogue sequencers that I designed and built years ago and I clock them with a Kenton Pro Solo Mk3. This unit can switch the MIDI THRU port to SYNC24 mode to work with Roland Drum Machines. This is a great solution but does tie up my Kenton which uses with my Editor and needs MIDI THRU for 2 way comms. Arduino and the Pro Micro  I realised it was a simple job to reprogram on of my Pro Micros to convert MIDI Clock and Stop/Start messages. I've used it for a few weeks and its a worker so I thought I build proper unit: Pro Micro 24 Pin DIL Socket 1 x PCB Mounting 1/4 Stereo Jack Socket (my sequencers are all 1/4) 1 x 10K pot (I used a 47K pot) Like my SYNC24 breakout box this will be mounted on the back of an existing 19" rack panel. The code is at the bottom of the post - you  will need to install the MIDIUSB.h library Analog pulses are output on the clock jack connected to Pin 2. When stop is pressed on the sequencer the Stop command