GORF !!!

The GORF is a 8-step midi-sequencer by Vacoloco. I build this device some month ago, but never had the time to post it here. The PCB is well designed and all components are mounted on it in a very space-saving way. To polish my grey housing a little bit, I put stickers on it which showing the logo from the Austrian TV-station ORF. The "G" in the logo comes from their payment-division called GIS (yes - everyone with a TV has to pay for the public-television in Austria, even if he is just watching the private-channels). But the name of the sequencer is from an 80ies video-game.

Here is a video showing the Gorf controlling my SX-150 via the CV from the MidiVox:


It's very easy and intuitive to program the GORF. You can also change and send Midi-CC.
When you connect your MIDI-keyboard to the gorf, you can transpose the programmed patterns.

There is still a problem in the GORF-firmware when using another bank than the first. The firmware if available, but you need an AVR-programmer to change it. I installed the programming-interface and the MIDI-In and MIDI-Out.

















Here is a picture of the plain PCB and some nice close-ups:

Arduino Punk Console

Huh! ...being quite busy last month. Now I'm back in "Bastel-Business" with a 8-step tone sequencer called Arduino Punk Console (APC). It's based on a project from Beavis Audio Research and includes a Arduino-Board with an Atmel328 .
On the upper-left is the volume-knob and the 3 knobs in a row are for Duration, Frequency and Tempo of the tone-sequence. The frequency of each step can be set separatly. Just hold one of the step-buttons and adjust the frequency-knob at the same time.
The display(16 digits x 2 lines) from Sparkfun has a serial interface which is very easy to use.

Currently the only problem is, that I have to hold the start/stop-button permanently to hear the sequence. I will fix this in the software soon. There is also a small bug in the wiring-diagram on the homepage : The red-line to the "tempo" potentiometer is missing.

I also left some space for more potentiometers on the right side. A feature-merge of the Auduino would be cool.

Update: I uploaded a video showing the APC in live-action!