I need it to make a cheap device that would detect survivors under debris after earthquakes. At least to make proof of concept.
I don't know a good way of doing it but for example, as far as I know there's R4 resistor (1Mohm) which is responsible for decreasing the sensitivity of the sensor. Lower resistance - lower sensitivity. Its resistance can be decreased by adding a resistor of the same value in parallel. What if I replace it with 2Mohm resistor? Will it increase the sensitivity?
Or maybe someone has an amplifier schema for this particular module (RCWL-0516).
I need it to make a cheap device that would detect survivors under debris after earthquakes. At least to make proof of concept.
I don't know a good way of doing it but for example, as far as I know there's R4 resistor (1Mohm) which is responsible for decreasing the sensitivity of the sensor. Lower resistance - lower sensitivity. Its resistance can be decreased by adding a resistor of the same value in parallel. What if I replace it with 2Mohm resistor? Will it increase the sensitivity?
Or maybe someone has an amplifier schema for this particular module (RCWL-0516).