Hi there
after much appreciated help with another weather sensor circuit I thought I might as well seek help clearing up a few queries I have with my other projects
As I had mentioned Im rather interested in weather monitoring sensors at the minute. A while back I had hunted down a schematic for a rain sensor/alarm. I originally wanted one where a light would activate when rain bridged the sensor, but the most decent one I could find for what components I had was this one..
I made 2 of these and they work very accurately, as a sensor I used a small piece of perf board with 2 thin copper wires threaded next to each other.
as soon as rain bridges the wires the buzzer honks around once a second or faster/slower depending on how wet,
the disappointing thing about this circuit is that the little 3v buzzers I have used are very quiet when this circuit is activated, I Know this isnt the maximum volume of the buzzer as when tested with a 1.5 battery etc they buzz much louder. In this circuit they make a tiny interval of honks like water dripping from a tap.
Im curious if anybody can tell me how I could replace the buzzer with an LED which would activate in place of the buzzer, OR is there away of increasing the volume of the buzzer.
im also curious if i were to build a particularly different sensor like the one I have drawn below ..
would this adaptation to the sensor make it possible for sensing snowfall rather than rain.
thanks
after much appreciated help with another weather sensor circuit I thought I might as well seek help clearing up a few queries I have with my other projects
As I had mentioned Im rather interested in weather monitoring sensors at the minute. A while back I had hunted down a schematic for a rain sensor/alarm. I originally wanted one where a light would activate when rain bridged the sensor, but the most decent one I could find for what components I had was this one..
I made 2 of these and they work very accurately, as a sensor I used a small piece of perf board with 2 thin copper wires threaded next to each other.
as soon as rain bridges the wires the buzzer honks around once a second or faster/slower depending on how wet,
the disappointing thing about this circuit is that the little 3v buzzers I have used are very quiet when this circuit is activated, I Know this isnt the maximum volume of the buzzer as when tested with a 1.5 battery etc they buzz much louder. In this circuit they make a tiny interval of honks like water dripping from a tap.
Im curious if anybody can tell me how I could replace the buzzer with an LED which would activate in place of the buzzer, OR is there away of increasing the volume of the buzzer.
im also curious if i were to build a particularly different sensor like the one I have drawn below ..
would this adaptation to the sensor make it possible for sensing snowfall rather than rain.
thanks