This is an old revision of the document!

<mb909>

kiCAD design of the board

Home made prototype, finishing now 14th of February 2012 (and it works!!!)

Intro

This page is al about my TR909 looking sequencer. As soon as I have finished the sequencer based on the V4Seq with LPC board I will update this wiki page.

I am now in the final stage of designing the board, I have all the parts, LPC board. I just need to make one PCB to make sure that everything is working.

For now you can check how it is going with the projecton at: http://synthage.com/

you can contact me on: http://www.synthage.com/contact/default.html

Cheers Jef

Features

The MB909 control surface is using the LPC core and altered SeqV4 firmware. The patterns can be for example 32 steps long with 3 trigger layers (gate, accent, roll, ….) and 2 parameter layers(velocity, roll, roll2, …)

In edit screen:

pushing one of the 16 general purpose buttons sets the selected step to normal velocity, pushing it again sets the selected step to accented.

In song screen:

If multimachine is selected then the sequencer will play 4 tracks of one pattern at the same time (unless you have muted one or more tracks.
If multimachine is not selected the sequencer will only play one track of one pattern.
you can select the track with the track buttons or with the encoders.
you select the bank of the pattern of the song position with the patterngroup buttons or with the encoders.