Hello guys,
I'm working on a project which has created many issues so far, but i managed to solve them, except the latest one:
A way to connect the 7 sensors to arduino w/o frying them or underpowering the board(Arduino Uno).
So, i'm using 7 Fairchild QRD1114 sensors, in a reverse V shape and an Uno which has only 1(!) 5V output.My most uneasing problem is reading the what seems to me incomplete datasheet, which can be found here.
What is the curent/voltage for the 3 pin(the anode of the sensor)? I see that the phototransitor uses 1.7V and a current of 50mA max, so are 20-22mA enough?
I have no ideea to creating a schematic of 7 sensor,except using 2 other digital pins set to HIGH for 5v output, only for the phototransistor.
Help would be much appreciated,
Athonks.
I'm working on a project which has created many issues so far, but i managed to solve them, except the latest one:
A way to connect the 7 sensors to arduino w/o frying them or underpowering the board(Arduino Uno).
So, i'm using 7 Fairchild QRD1114 sensors, in a reverse V shape and an Uno which has only 1(!) 5V output.My most uneasing problem is reading the what seems to me incomplete datasheet, which can be found here.
What is the curent/voltage for the 3 pin(the anode of the sensor)? I see that the phototransitor uses 1.7V and a current of 50mA max, so are 20-22mA enough?
I have no ideea to creating a schematic of 7 sensor,except using 2 other digital pins set to HIGH for 5v output, only for the phototransistor.
Help would be much appreciated,
Athonks.