I am trying to connect multiple IR break beam sensor to Arduino Uno , read the sensor values and process the information. I will be powering the Arduino UNO using USB ( from laptop ).
Apart from sensors , i will be using an HC06 bluetooth module and one LED. IR break beam sensor that will be used is the 5mm version from Adafruit - https://learn.adafruit.com/ir-breakbeam-sensors?view=all
I could successfully get the readings from 1 pair of sensor and now i wish to form an array of more than one IR sensors and the read the output from individual sensors.
- Considering the above setup, what will the maximum current drawn from the 5V pin of Arduino.?
I did some search on the internet and found out that upto ~400 MA can be drawn from the 5V pin that is powered by USB.
If that's the case how many more sensors can i accommodate.?
Adafruit link says the emitter draws a current of ~20 MA..so can i form an array of say 4 sensors?