Friday 28 March 2014

WEEK 7 FYP SEMESTER 2


Objective

To overcome and rebuild the previous unsuccessful PIR sensor.



Activity

In this time have make the final adjustment by change PIR sensor to PIR module sensor. This module is 100% been amplified the output from PIR sensor. The module shown below :
   This PIR module may be integrated  to the other circuit with which from the circuit done on lab session for subject ACTUATOR. The circuit is used astable 555 timer circuit. The circuit will shown at below :


The lab session circuit, the pin out 4 for 555 timer is connected to supply which is consistent input to make the output continuously. It make indicator buzzer to switch on continuously. Therefore, pin out 555 timer is connected to output PIR module to receive output when PIR module is detect motion.


Friday 21 March 2014

WEEK 6 FYP SEMESTER 2


Objective

To overcome the previous unsuccessful PIR sensor circuit.


Activity

The previous PIR sensor circuit is don't display output to LED then adjustment are make it the construction back the circuit to new PIR sensor circuit is follow circuit below :


In this circuit, their is adjustment for the circuit and follow the example circuit to try to overcome problem before. The circuit don't use amplifier to convert output. Therefore direct take output from PIR to create the output there is buzzer. The buzzer is the indicator for this circuit.

Friday 14 March 2014

WEEK 5 FYP SEMESTER 2

Objective 

To construct and testing the PIR sensor circuit


Activity


The construction for the PIR sensor circuit is follow circuit below:



The construct and testing using PIR sensor. Without using PIR module. This circuit is using amplifier is to convert the PIR sensor output to suitable output in voltage. Using relay 12V to switch on to deliver output active high or active low to LED. Free willing diode that connected between relay is to prevent transistor receive continuous supply from relay. It may recycle back within the relay only.