Trying to build a circuit that will give nearly zero ohms when photodiode is open and high ohms when the light hits the diode.
I'm using a photodiode and an npn transistor. +5 Volts is the source. I have had success making the circuit work, but it requires more light than I'm able to give it in the system. Basically I need a way to increase the sensitivity of the P-diode.
Thanks!
I'm using a photodiode and an npn transistor. +5 Volts is the source. I have had success making the circuit work, but it requires more light than I'm able to give it in the system. Basically I need a way to increase the sensitivity of the P-diode.
Thanks!