MrElectroniceng
Newbie level 5
Hi all,
I am planing to use 650 nm, 5 mW, 3V red laser diode and photodiode for my project. The laser should be detected from the distance of 100 - 150 cm. I am trying to achieve logic 1 (5 V) when laser detected and logic 0 (0 V) when laser is crossed. I may use op amp or ADC input of my microcontroller. What kind of photodiode should I use with minimum cost?
Thank you.
I am planing to use 650 nm, 5 mW, 3V red laser diode and photodiode for my project. The laser should be detected from the distance of 100 - 150 cm. I am trying to achieve logic 1 (5 V) when laser detected and logic 0 (0 V) when laser is crossed. I may use op amp or ADC input of my microcontroller. What kind of photodiode should I use with minimum cost?
Thank you.