We've received some complaints about this 5-pin ultrasonic module. The documentation seems wrong and user guide in its wiki page seems not working with. We determine to discontinue this 5-pin module temporarily. Sorry to have caused the inconvenience.
Non Blind Zone Ultrasonic Module SDM-IO is a stable and measuring the distance accurately ultrasonic module which provides 0cm - 3000mm non-contact measurement function,the ranging accuracy can reach to 1mm. Its performance can compare with SRF05/SRF02 ultrasonic distance measuring module, also it has non-blind (From 0-1cm the measurement results are not accurate when we test, but more than 1cm are accurate) design and fast response.
Please visit Itead's wiki page for more info about this product.