Steiner-Parker : Synthacon Synthacon images courtesy of Audities Foundation Calgary AB, Canada. The Synthacon is a 3 VCO monosynth with a 4 octave 49-note (C-C) keyboard, 26 knobs, 3 trimmers and 43 switches (including 28 color-coded toggle switches). It has thick wooden end pieces and a steep sloped silver (on earlier models) or black control panel above and quite close to the keys. The Synthacon is said to be quite rare. We made a few with a keyboard that could play arpeggios of whatever notes were held down. The Synthacon's architecture is divided into ten sections: Keyboard, Sample and Hold, Trigger Generator, Dual Envelope Generator, VCA, Three Mode Filter, Noise Generator, VCO1, VCO2, VCO3. The Keyboard section has controls for Tune, Scale, Portamento (Glissando), Range Select (enables the keyboard to play over an 8 octave range), and pitch bend (a knob, not a wheel). The Sample and Hold section has controls for output level and trigger source, selecting between the keyboard or the trigger generator.
ATTiny based Electronic Candle Our friend Pete Mills developed this great ATTiny based Electronic Candle, we have seen electronic candles before but what makes this one shine is how the flickering was done. Pete actually sampled the actual flicker patterns of a real candle flame so that this reproduced flame would look as close to the real thing as possible. You can see some other electronic candle designs here for inspiration. “The ATTiny Candle is an LED candle. I figured the hardest part of this project would be making the flicker look realistic, so I decided to let nature do that part for me.
Schematics Jesse aka Tablebeast has done a wonderful thing by posting a link on the Benders list to a collection of Vintage Casio keyboard manuals. They include the owner’s guides for SK-1, SK-5, SK-8, and DM-100. The SK-1 service manual aka the Bible is also there. Very neat to look at, although I am a little puzzled about the addition of the Tablebeast Modification pages in the PDFs. At this point they seem to contain nothing. Cappy has notified me of an update to his site SailorMouth.org. From what I can tell, circuit bending Casio PT-10 may not be the most rewarding thing to do. Peter B of Ciat-Lonbarde is offering a new kit with design schematics in order to help buy food for the clean up crew working on the fire ravaged Tarantula Hill. This Gameboy case was inspired by the previous GameBoy mods, however it is based around the 40106 Hex Schmitt Trigger not the 4093 Quad trigger, because I ran out.
EngBlaze | Arduino, AVR, and hardware hacks, oh my. Schematics Here is a link that Roger sent me a while ago. Its a website by Frans Samshuijzen with detailed descriptions of some mods that he did to a set of Casio SK-1 keyboards appropriately titled: “Casio Twins“. The mods include a full pitch mod with the use of a TI 74LS624 voltage controlled oscillator. It is also worth noting that a 555 timer circuit would theoretically do the same thing, except that the max frequency of a 555 is about 2Mhz and with the LS624 chip the schematics indicate a range of between 1.5 and 10Mhz with a max of 20Mhz. The downside however is the fact that the LS624 is far more expensive, $2.55 a pop. Still worth every penny considering that the Casio will provide for a full 3 Octave mind melting sound experience, along with longer and grainier recording times. This link I’ve been hanging onto for over a year now, Laurier’s Handy Dandy Little Circuits. Sound sample is located here.
Electronics DIY - Electronic Schematics FM Transmitters TV Transmitters Stereo Transmitters 555 Timer Business Cards | Cody Shaw Hello! So I thought up this cool little project during my last few weeks during my co-op term at Echologics Engineering. I saw everyone had nice, professional looking business cards, and I needed something to springboard myself into PCB design and manufacture. One and one came together, and this idea came about. There were quite a few idea revisions in my mind before I actually got around to spinning the PCB. First idea: a photoresistor of course! Current in parallel with a normal resistor, of course! Then came the digitization! The idea behind the circuit is that you lay a 9 volt battery on the terminals, and the circuit then operates as expected (see video). The card features my personal info, as well as one of my favourite Tesla quotes on the backside. And there it is! Here’s the card in action! Best, Cody Like this: Like Loading...
Hoektronics.com | Automate ALL the things! MCU LaunchPad Evaluation Platform | Microcontroller Kit from Texas Instruments for MSP430™ , C2000™ real-time and Stellaris® ARM® Cortex™ microcontrollers BoosterPacks are modular plug-in boards that fit on top of the LaunchPad baseboards. These modules introduce new functionality to the LaunchPad evaluation kits including wireless, capacitive touch, LED lighting and more! BoosterPacks include everything you need to create compelling new applications based on the LaunchPad evaluation kits, including a plugin module, software and documentation. Build Your OwnSee BoosterPacks
Main - open-plc - OpenPLC - an open hardware alternative for automation OpenPLC is an open hardware alternative for industrial and home automation. It uses the well known ATmega chips as main processor, the same used on Arduino. This means that OpenPLC is code-compatible with all arduino sketches. The main features of the OpenPLC are: ● Protected 24V Digital Inputs (8 inputs for each module) ● Protected 24V Digital Outputs (8 inputs for each module) ● USB Communication (used for programming) ● RS-485 bus for communication between modules ● Open Source IDE with c++ programming ● Open Source IDE with Ladder programming ● Integrated Ethernet ● 16MHz ATmega2560 as main processor November 29, 2013 Finally the boards are done! We made a benchmark with a Siemens S7-200 PLC. September 9, 2013 I'm very happy to announce here that the OpenPLC Ladder is finally ready for it's first public beta! If you want to download the binary files, just click HERE. NOTE: You can upload the openplc ladder code to a standard Arduino Mega as it has the same processor of the OpenPLC May 25, 2013