A simple light detetctor / nightlight circuit.
PCB layout fits on one side
|Light Dependant Resistor| |R4|1| |
|LED|5mm LED|U1,U2|2| |
No power solution is included in the BOM. A coin cell is enough to power the circuit.
PCB muon detector
** CHECK v2 HERE: https://easyeda.com/markus_jidoka/muon-detector **
** Special Thanks to [markus_jidoka](https://easyeda.com/markus_jidoka) due to the nice improvements **
Schematics designed by Robert Hart:
Thanks to Robert Hart for his fantastic ideas, please check his site for further experiments:
Water detector with 4 level stages. Each stage makes the 555 timer to give a supply period for the buzzer. The active buzzer transmits sound with a pause period between 0.5-3 seconds, depending on the level detected.
I am only a beginner at this. So would be very happy for anyone to point out problem with the
design. This would be very helpful.
The unit is design to be connected to 7 float similar to the one in the image,(attach file)
on the block Bottom right.
As the water rises the LED bar on the left indicates the level. Power & Buzzer indicator.
With the rotary switch top right to can set t...