Sunday 24 August 2014

arduino - Better resolution with photodiode (LTR-536AD)



I want to build something like a fog-sensor.


I'm using a laser and on the other end (~20m) I have a LTR-536AD photodiode. I hooked the photodiode to an arduino and was monitoring the voltage.


My problem: When there is ambient light the analog reading is ~640. When I hit the sensor with the laser it is about ~620.


How can I increase the resolution?




-

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

arduino - Can I use TI's cc2541 BLE as micro controller to perform operations/ processing instead of ATmega328P AU to save cost?

I am using arduino pro mini (which contains Atmega328p AU ) along with cc2541(HM-10) to process and transfer data over BLE to smartphone. I...