10US a control population of more than a high-fat, you can wait to receive high output port. A timer can be opened with the output timing, when the port goes low when the timer value can be read this when the time for this distance, only calculate the distance. This constant cycle of measurement, you can reach the value of the mobile measurement ~ ~
The IO trigger location, the high signal to at least 10us;
The module automatically sends eight 40khz square wave, automatically detects whether a signal return;
Asignal back, through the IO of a high output, high duration is
Ultrasonic time from launch to return. Test distance = (time * High speed of sound (340M / S)) /
This module provides a full set of ranging process: C51, PIC18F877, ultrasonic LCD1602 display, ultrasonic LCD12864 display, LED display, serial display, ranging reference program.
Shenzhen Xiefengda Technology Co,.ltd?specialize in electronic components such as ic , capcaitor , diode , fuse, transistor , resistor and so on .We have done this business over 10
years,having builded long-term cooperation relationships with lots of famous factories and agents all over the world .?We?have?been?committed?to?offering?the?broadest?selection?of?in stock?
electronic?components,as?well?as?providing?the?lowest?price?at?the?fastest?speed,whatever?products?you?are?sourcing. We possess strict quality control system as well as professional testing equipment and experienced electronics engineers.
All products will be tested and evaluated strictly before shipment.We offer the longest warranty period than any others,you can 100% return or exchange the goods within warranty .
Answer : Yes !Our parts could accept any kinds of testing , if there is any quality problems we will take responsible .
What is your warranty ?
Answer :?Within 60 days after package have been received .?
How to pay the order ?
Answer : We could accept TT , Escrow , Paypal , Western Union and Alipay .After the order have been confirmed the invoice will be sent for reference .Then make payment as the way you like , as soon as the payment have been confirmed ,we will arrange shippment within 3 days .
Answer :?If?there?is?any?quality?problems or questions ,?we?could offer technical support or return service .
What is your lead time ?
Answer :There are no lead times for in-stock products.?Most of the parts could be shipped out within 3 days after payment have been confirmed.
?May I have a sample for testing ??
?Answer :Yes ! Only to pay shipping cost ,free samples could be sent for testing .