Plan to use WT41 with product that sends periodic ASCII strings and responds to ASCII characters and including cntrl characters. Develop with Windows terminal program connected through a BT dongle's virtual COM port, no problem. Can send ASCII strings, cntrl chars, any binary sequence contained in a raw binary file i.e. send any binary which then appears at WT41's UART.
Am wondering if anyone knows of a good Android BlueTooth terminal program that can send out small binary files with user direction and perhaps with programmable send buttons and scalable font, to make it easier for user to read the strings.?