So I want to do a project (I think its cool) where you can send audio through an IR led. Im sure its possible (omitting quality, distance and what not - just somewhat clear transmission).
But here is my problem. I dont really have any specs on my IR leds nor my photodiodes. I got them to work in the sense that when I control the intensity of the IR diode, I can get some proportional change on my photodiode. Also, I dont have a scope or anything fancy to really see whats going on.
--all I basically did was have a potentiometer across my IR led to change its intensity, and reverse biased my photodidode with resistor and red led in series to detect the change ---
However, I think to do this project, I would need to look at the small signal analysis of both ir led and photodiode (assuming that because they are diodes they are also non linear devices).
Without the tools and much information other than doing small experiments to detect changes, is this project feasible ?
But here is my problem. I dont really have any specs on my IR leds nor my photodiodes. I got them to work in the sense that when I control the intensity of the IR diode, I can get some proportional change on my photodiode. Also, I dont have a scope or anything fancy to really see whats going on.
--all I basically did was have a potentiometer across my IR led to change its intensity, and reverse biased my photodidode with resistor and red led in series to detect the change ---
However, I think to do this project, I would need to look at the small signal analysis of both ir led and photodiode (assuming that because they are diodes they are also non linear devices).
Without the tools and much information other than doing small experiments to detect changes, is this project feasible ?