My robot's ultrasonic sensor EZ1 detects objects without any object in front of it...in fact my robot should reverse when it comes in front of an object...lately it has been doing that sequence for several times...pfff. Sometimes it works perfectly and then it does the reverse sequnce without any object in it's filed. I tested with usart to see what was the problem and it was found that the sonar module EZ1 detected even when there was no object in the programmed distance I set it to detect. Any help or advise would be appreciated friends. Thanks
