|
Rain Detector
Last Updated on:
Friday, March 12, 2010 12:07 PM |
|
|
|
|
Links to electronic circuits, electronic schematics, designs for engineers,
hobbyists, students & inventors:
|
|
Rain Alarm - This circuit gives out an alarm when its sensor is wetted by water. A
555 astable multivibrator is used here which gives a tone of about 1kHz upon detecting
water. The sensor when wetted by water completes the circuit and makes the 555
oscillate at about 1kHz. The sensor is also shown in the circuit diagram.
It has to placed making an angle of about 30 45 degrees to the ground....
(added 11/06) |
|
Rain Detector #1 - (electronic (schematic / circuit added 4/02) |
|
|
| |
| |
|
|
