Asymmetry on Sharp IR Distance Sensors
Hi guys, If you have worked with Sharp IR Distance Sensors you may have noticed that they are not symmetric at all. They give high values when an object is placed in the side of the emissor.
Take a closer look at this picture to see the asymmetry. The values were gotten by the ADC of an Arduino Board, so 0 means 0V and 1023 means 5V.
This asymmetry can be a problem for example if you have designed a sumobot with two Sharp IR Sensors in the front and you want your robot to be able to track your opponent.
If you have placed the sensors normally this is what your robot will see.
As you can see the robot will see much better something in the left than in the right.
But the solution is very easy, you just have to turn one of the sensors 180º vertically and you will get something like these.
Placing the sensors in this way gives to the robot a much more symmetric readings. Thus it will be very easy to track your opponent.
May the force go with you!