Hi,
My goal is to use IR sensors / recievers in a simple setup, using a LM393 comparator ... to create a simple line following robot.
I can't seem to get them to work ... what am I doing wrong?
I've got the emitter (very similar to a regular LED), hooked up to a 5V power source with a resistor.
The reciever is a 3-pin device. The pins are hooked up matching pictures / diagrams I found on the net. 5V, Ground, Output Pin
On the output pin, I'm trying to get a voltage reading, but the reading doesn't change at all based on whether the IR Emitter is on or off.
I've also got an IR detector (2 pins, very similar to the emitter). I can't get a changing reading off of that device either.
What am I missing? A lot of the IR projects on the net use microcontrollers. Is it even possible to work with IR using strictly analog components like I'm trying to do?
Thanks.
Jon
MICRO571
My goal is to use IR sensors / recievers in a simple setup, using a LM393 comparator ... to create a simple line following robot.
I can't seem to get them to work ... what am I doing wrong?
I've got the emitter (very similar to a regular LED), hooked up to a 5V power source with a resistor.
The reciever is a 3-pin device. The pins are hooked up matching pictures / diagrams I found on the net. 5V, Ground, Output Pin
On the output pin, I'm trying to get a voltage reading, but the reading doesn't change at all based on whether the IR Emitter is on or off.
I've also got an IR detector (2 pins, very similar to the emitter). I can't get a changing reading off of that device either.
What am I missing? A lot of the IR projects on the net use microcontrollers. Is it even possible to work with IR using strictly analog components like I'm trying to do?
Thanks.
Jon
MICRO571