BlueSmirf issues

Wireless & IoT
1

I’m trying to make a BlueSmirf talk w/ an 8051 uController. It connects fine, I see the LED turn red on the Smirf, the command is sent to the uController, but nothing is sent back from it. If I change the com port and plug in a serial cable, the code works fine, it just doesn’t work with the Smirf.

Settings are 9600,8,E,1. All code has been verified in Processing, ZTerm, Visual Basic, etc. and on OS X and XP. This can’t be hard as all I’m doing is sending the commands 41 and 247 to the uController. What am I doing wrong here?

TIA,

Rich

2

Do you have the BlueSMiRF’s RTS and CTS lines connected to the serial port (or jumpered together if you don’t want hardware flow control)? That was the mistake that I made when hooking up my card for the first time.

3

Yes. I made a jumper for the 2 pins and solder on the pcb. Both ways make no difference. This is my second Smirf as the first one was DOA. At least this one can send.