Tuesday, 3 July 2007
Wednesday, 13 June 2007
Nandsynth synced by Groovebox->midi->xoxbox->gate->SwitchSequencer. The 555timer is just replaced by the xoxboxes cv/gate trigger. Much to my astonishment it worked.
Just Nandsynth audible in the beginning, simple beat and more or less unaudible xoxbox bassline opened in the end.
Instructions of the first version of the Nandsynth here.
Posted by Tuomo at 13:09
Thursday, 7 June 2007
Monday, 4 June 2007
Memory Pot controlling xoxbox. The two RCA connectors on the side of the xoxbox just connects to the filter cutoff and custom resonance boos pots inside the xoxbox. MemPot box records realtime the turning of the pot and plays it back with adjustable speed.
See other MemPot examples here, and instructions to make one here.
Posted by Tuomo at 12:04
Thursday, 31 May 2007
MemPot is a small controller circuit where potentiometer (or any variable resisor) is read and recorded with PIC (16F819) microcontroller. PIC stores a sequence of values from the user turning the knob and plays the same sequence back via serially controlled digital potentiometer (DS1267) chip. The playback speed and recording buffer can be controlled. This is a handy tool for performing gestures with electronic instruments with variable resistors as controllers.
Check the updates on schematics, PCB-files and Bill of Materials from here. We can hopefully include the making of MemPot for our next DRU workshop in July.
Posted by Tuomo at 18:35
Wednesday, 4 April 2007
Three cascaded gated oscillators from NAND Gate Schmitt Trigger chip CD4093 from example in Nicolas Collins' book "Handmade Electronic Music - the art of hardware hacking". The variable resistors are one pot and one LDR and one digital potentiometer (DS1804) driven up and down with Basic Stamp. I experimented with different size caps here, from 0.01 to 1uF.
Monday, 2 April 2007
A couple of photos taken at the excellent demonstration by the Association of experimental electronics at Pixelache on Saturday. There are lots more photos of the weird and wonderful things they make on their website.
P.S. Special thanks to Olegtron for the trip to the Kirppis in Turku.
Saturday, 17 March 2007
Friday, 16 March 2007
Thursday, 8 March 2007
Tuesday, 27 February 2007
It all begun here. Polymer Research Laboratory at Birkby. Two men, boxes full of plastic instruments from Casio and Yamaha families plus shiny but silent Suzuki Omnichord. After a successful week at Huddersfield for DRU meeting game&toy brainstorming plus our first circuit bending session together, I'm sitting in Manchester Airport, having a pint, sweaty but happy. Thanks Dan for regging the blog.
Posted by Tuomo at 16:50