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hey,i really liked your project and i am dying to make it the transducer you mentioned in this instructable is unavailable in india. So i found another one pls check wheather this one can be used in the project instead of the one you mentioned. the link is provided below:http://www.ebay.in/itm/Transceiver-48KHZ-17-5MM-Me...this is a 48 khz transever pls help me.
when i compile the program it show errorsplease help me its urjent
Which relay did you use I really want to do this.EAGERLY waiting your response
Which relay did you use .I really want to make this.EAGERLY waiting for your replay.Also a very nice project