SRF-02 Ultrasonic Sensor not working

Other Hardware Sensors
1

Hello,

I've recently successfully connected the SRF-02 sensor up to the Arduino uno and have had no problems. However for some reason it has stopped working. The Tx and Rx lights on the arduino arent flashing therefore assuming its not transmitting. and the red light on the sensor doesnt 'blink' when it's connected anymore. there is however an initial blink of maybe 1 second but nothing after that. I'm new to this sort of stuff and cant find anything that explains what the problem could be. If anyone has any ideas it would be appreciated.

2

How is it wired?

What software sketch are you using?

Some Ultrasonic How-To HERE:

3

Its wired the exact same as the circuit section in the following link with the 100uf capacitor:

and used the following code (minus all the LCD 03 coding lines).

http://www.robot-electronics.co.uk/files/srf08.pde

void loop(){

int rangeData = getRange(); // Calls a function to get range

Serial.print("Range = ");
Serial.print(rangeData);

}

This is the only coding in my loop.

Wire.send has been changed to Wire.write
and Wire.receive changed to Wire.read

It worked perfectly for a week or so. Then i left it for a while and when i re-connect it the red light on the distance sensor gives about a flash that lasts a second.. then nothing :~