This program is developed with RFO-Basic!. Basic for Android. This program worked well in HTC One S. Not tested on other phones. A small explanation and info about this files can be found here: http://rfobasic.freeforums.org/post11515.html#p11515 You need: 1.-"xprotolab scope" and "module bluetooth". 2.-android phone and BT activate. 3.-rfo-Basic! language. 4.-Inside /source make a folder /xprotolab. 5.-Place the 2 files there. f_BT8_i.bas, fn_xyplot.bas Regards More information, downloads and many examples here: Board index, Forum. http://rfobasic.freeforums.org/