FAB ACADEMY 2015-Paul Rutto 
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Project name: home alarm system
Units covered :Computer Aided Design,electronics design,electronics production,input and output devices,computer controlled cutting.
The alarm will be monitoring a certain process.
Materials: A sensor,pcb three 555 timer ICs,four 10K,attiny 44 ,82k and 200 ohms resistors,1m,200k ohm potentiometers,three 0.01uf ceramic capacitor,220uf electrolytic capacitor,
two diodes (1N4003),speaker 8ohm and a swicth.
Cost: 11 USD.
Parts and systems to be made: processing unit,housing unit
Processes : Design of PCB, machining , soldering of components and testing .
Questions: workability and application.Will have a demo of it during presentation.
Schedule : 3 days.
Evaluation: testing the system.
Download CAD file for the discase unit for the alarm
The schematic for the alarm,the circuit will contain Attiny44 microcontroller other components availble in the diagram below
Download alarm schemat
Download alarm board
The board for the alarm as shown below
The alarm assembly in progress as shown below
