Ping ultrasonic finder !!!

Tunisiano

Hi everyone, am working on Ping Ultrasonic finder in my hexcrawler. I got a code which gives the distance of an object from the the Ping ultrasonic finder. Surprisingly, that code works only if the button of the board of education is put in position 1, the window shows "000" if the button is put in position 2. I tried to put that program in a larger code that makes the hexcrawler reacts depending on the distance of the closest object (for example if the distance is less than 20cm, the hexcrawler moves backward, otherwise it moves forward), the hexcrawler doesn't want to move anymore.
Please tell me how can I fix this. I read about the commands used for the Ping finder (PULSIN and PULSOUT), and nothing seems weird about them.
thanks.

Mike Green

It's impossible to answer your question without more information. At the very least, you need to supply the source code of your program and a schematic showing how you have things hooked up, both provided as attachments to a message (use the Post Reply button to get the Attachment Manager). Do check your power source. Very commonly this is a power problem where the extra load of the motors causes it to appear.

Tunisiano

It went well when I changed the connection of the Ping ultrasonic finder to Pin12, it was connected to Pin15, I don't really understand what was the problem.
Thank you so much for your reply, I really apreciate that.

JReed

I think I know what the problem is because I ran into the same thing with my boe bot. Pins 12 - 15 have the the motors attached to them. The servo plugs at the top are nice and handy, but i keep forgetting that they are tied to those pins. I had the ir sensors hooked up to pin 15 and 15 and couldn't figure out why his left eye wasn't working.