Last week I already finish with the design of the PCB board. Now I need to solder the component into the PCB board. Picture Below is the complete circuit that have been solder with the right component. The first picture is the bottom part of the PCB board that the soldering part has been done.
In this circuit, it have 4 connection.First, the connection of power supply, 2nd is connection to pic circuit, 3rd to the sensor and 4th is connection to MAX232 or GSM. To trouble shoot this circuit, +ve prop of multimeter we connect to the connection of pic and negetive prop to the ground. As I mention above , the Vin is 5 volt to operated this circuit. To know this circuit is function or not, we adjust the variable resistor and we can see the value of multimeter (dc) is changed. It proof that this circuit is function.
Figure 1 :
Figure 2 :
Figure 3 :
Referring the picture above, the power supply is set in 12 volt dc.and we can see at the first picture is nothing happen. to make sure this circuit is working, from the o/p that connect to pic, we 'short' with jumper and we can see LED is 'on'. If the LED is off, might be this circuit have problem.
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sh mohd faiz
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