GMU:Devices of Perception/Sebastian Kaye

DeViCeS oF pErCePtIoN

Day 1 Notes

Learning about the two versions of circuits you can make with the 55 timer, for two modes, Astable and Monostable.

The Astable mode the circuit has a constant output which's the duration can be varied by using resistors and capacitors with different strengths. In this example we used an LED as the output.

The 555 TIMER: ASTABLE MODE

Then you've got to 'get inside the machine' The internal Logic of the 555 Timer.

Day 2 Notes

'Technology is an agent of power... and in practice is not the sum of the artefacts, but a system much more than the parts. this system includes organisation-mindset-symbols and a whole body of knowledge...' - Sonia Sheridan Bonds

The 555 TIMER: MONOSTABLE MODE

The Monostable mode includes a stitch, which when activated, lets the circuit run for a duration of time that is conditioned by the resistors and capacitors. (on once, HIGH)

Switches:

H-Bridge for controlling the direction of a motor: File:Day2 F.jpg

Using a relay:

1st Assignment:

Two choices: Make a switch (super conceptual) using the 555 timer in MONOSTABLE mode.

Or

Make a variable resistor (alternative, creative) the main thing is that what ever it is, the material needs to be conductive.