Yes, if you shine a light on an LED it generates a voltage. How do you determine how much power you can get out? If I put a resistor in parallel with it of 100K ohms the voltage drops to almost zero volts. 1M I get about 0.2 V. 10 M I get 1.2 volts. No resistor I get 1.4 Volts.
I am using an 8 mm diameter white LED.
With the 10 M I calculate about 0.12 microamps at 1.2 V. So am I looking at about 0.144 microwatts? Not very efficient.
If I use colored LEDs do I get color sensitive readings?
Has anyone else played with this idea?
I am using an 8 mm diameter white LED.
With the 10 M I calculate about 0.12 microamps at 1.2 V. So am I looking at about 0.144 microwatts? Not very efficient.
If I use colored LEDs do I get color sensitive readings?
Has anyone else played with this idea?