IC 555 and my health!
Originally uploaded by cultured_society2nd
Is it lack of vitamins or the weather? I am frequently getting sick this month, although its the month of Ramadan (Muslim fasting month) its being raining almost everyday. This has made me skip classes thus i really felt bad and worry about my attendance.
Remaining home is not that bad, I did research on IC 555 on websites (see Integrated Circuit) and deeply hands on to create a circuit. In the process I used my custom made audio amplifier to amplify the sounds in this experiments.
Specifically I used LM555C 8-pin V package the one that was usually made for military equipments. Understanding that IC 555 handles a range of volts at 3v – 15v DC, it is very versatile and thus not worrying much about its voltage resistance as i did my experiments. But while experimenting the circuits with 9V alkaline battery burns my potentiometer with smoke and soot…Ive should had add a diode before the potentiometer connection 
I to be safe used 6v quad AA 1.5v battery.
IC 555 is capable in creating 2 tones when used in pairs or by using IC 556 model that has two integrated circuits in one.
I tests circuits from www.uoguelph.ca, I concentrate on experimenting on light and sounds; the ones with LDRs (Light Detector and Eye Electric Alarm) as my current Untitled Desires project requires circuit bending light interactions.
Using photo resistors with IC 555 through the process enables it to create an analogue sound values, but considering sensitivity; the size of the photo resistors does effect the circuit voltage resistance, I tested different types of small and large photo resistors in the experiments. To create different monotonous effects; a wide range of capacitors and resistors was used.
Currently I am successful and quite satisfied with my circuit, the second step is to integrate an inbuilt synthesis from children toys that normally has music or sound effects into my light detection circuit.
I will post images of my experiments in this blog soon!
