Robert Carter

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Electronics

Someone was throwing away this small black and white TV. Beautiful isn’t it? As you can see, the screen is not much bigger than the palm of your hand. It has a small problem – the image is squashed, about… Continue Reading →

Here is an infographic about the 4051 Multiplexer used in the project. Arduino playground have a very good article on the subject.

Casio SA-10 with Arduino sequencer

I am interested in the use of Bricollage as an approach to making. As part of my studio work I have amassed a collection of circuits, components and electronic devices. Inspired by their variety, colour and function, I have combined… Continue Reading →

Today I wired up the 50Hz speaker with a 5 foot fluorescent light fitting. These will be placed inside the resistor to illuminate and create sound. http://vimeo.com/31361375  

Made this infographic to explain my understanding of the workings of the Casio SA-10 synth. Click the image for the full size version (A4) to print it out. If you’re interested you can read more about the SA-10.  

A page from my notebook while I was working out what the pins from the CPU do. The K numbers refer to the keyboard. XTAL and YTAL are the pins for the crystal oscillator (the clock).

In the photo I have breadboarded a test circuit which will become the interface between the Ardunio and the SA-10 keyboard. The two chips are 4051 multiplexers. Essentially they are 8 in, 1 out selector switches that can be controlled… Continue Reading →

random play

I connected the SA-10 up to the Arduino with a test program to listen for the keyboard scan pulses I wrote about before. A pulse is sent when a pulse is detected. This seemed to make the synth go a… Continue Reading →

Tapping the bus

A bus is an electronics term that means a collection of wires all running together, taking information from one part of a circuit to another. The importance of a bus here is that it is used to connect the keyboard… Continue Reading →

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