Rain Detector
I make a rain detector,it work when start to rain,external sensor is the out side pcb with parralel wire it make a short cut to electronic circuit,and a buzzer warning.The
original consept and design is from .www.techlib.com.But i make a modifications at transistor Darligton type, because the original design the buzzer it was not strong.
| Here it is the electronic design | Here it the electronic material,plastic boc,case for batteries,switch on-off,jack,resistors,capasitors,transistors,cable,except one transistor BC 547. | Here i kame holes to plastic box for install the switch on-off,buzzer,rca jack for external sensor. | ||
 |
 |
 |
||
| Here it is ready the rain external sensor. | Here it is ready the the rain external sensor for the other side. | Here it is ready the main unit circuit. | ||
 |
 |
 |
||
| Another one photo the main unit circuit . | And from the other side . | Here it is ready in a plastic box | ||
 |
 |
 |
||
| View from left side it is the switch on-off and buzzer . | View from right side it is the jack for external rain sensor . | And here it is completely finish. | ||
 |
 |
 |
||
| Click here for you see video. | ||||
 |
||||