Hello, I am new to the electronics and having a very weak base. I want to build a IR indicator by using the IR LED and the photodiode. I had tried to connect the my circuit according to the figure below. However, I get no reading change for the V(out) when I tried to block the photodiode from IR LED by using black color cover.
The IR LED is function well.
Btw, do anybody still have datasheet for the 5mm IR LED and 3mm photodiode? I tried google it but get nothing same with my components.
I am not sure about the operating current and voltage for the photodiode.
Is that R2 in the correct value?
Is that longer leg for the photodiode indicating anode for it?
If I put the LED to the V(out), is that the LED will light up when I block each other? (LED parallel with the photodiode)
Thank for answers.
The IR LED is function well.
Btw, do anybody still have datasheet for the 5mm IR LED and 3mm photodiode? I tried google it but get nothing same with my components.
I am not sure about the operating current and voltage for the photodiode.
Is that R2 in the correct value?
Is that longer leg for the photodiode indicating anode for it?
If I put the LED to the V(out), is that the LED will light up when I block each other? (LED parallel with the photodiode)
Thank for answers.