I am trying to create an electric meter reading setup for Arduino, and I have been searching for it and almost every posts available is using LDR sensor.
And since it is using LDR, the system should be kept in a dark area, or that the LDR is taped to the flashing LED so that no other light source will interfere the sensor.
But I wanted to have a different setup, and what I am thinking is:
- inside the electric meter, tap into the blinking LED
- From the LED, connect it to an LLC (https://www.sparkfun.com/products/12009)
- From the LLC, connect it to the Arduino
- Arduino will sense/detect the pulse of the LED.
Is this a possible setup? Will it not fry the Arduino or the LLC? Will Arduino be able to detect the pulse?
If not, are there any other options? can I use discrete components instead? (I will be the one creating the circuit connection for the LED and Arduino, using resistor, diodes, etc.)