Hi, I have a bluetooth module running at 3.5 volts with 3.3v TTL output connected to MAX232 to rs232 usb to serial converter. When I send data to the module, it should appear on the screen of the serial communicator. But instead what is happening is that the data is shown received at the Bytes Rx (at the bottom of the screen) as numbers increment there but it does not show on the screen.

Can someone please help me know what am I doing wrong? My whole circuit is running at 3.5 volts including MAX232. Thanks