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Revision as of 17:57, 23 June 2014
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: