BTMate Gold Connects through UNO but not FTDI serial

Wireless & IoT
1

I am able to paste the code found at https://learn.sparkfun.com/tutorials/us … mmand-mode into a sketch and run it (for some period of time before it stops working).

I have not yet been able to connect to either of 2 BTMate Gold units over a serial interface.

I have used both 115200 and 9600 non-parity and 1 stop bit using PutTy, RealTerm, TeraTerm, and even tried YAT.

The sketch code isn’t offering me any hints, other than I’m wondering if its the “no newline” selection used in the Arduino Serial Monitor. I’ve been attempting to find such a feature in other programs as well.

I am attempting the serial connection using an FTDI breakout and an FTDI USB converter (both from another supplier) to attept these connections. I am not expert enough to know for sure - but would suspect FTDI cables/breakouts are going to be common among quality suppliers.

Any input on what simple step I may be missing in communicating to the devices would be very much appreciated.

2

I have also tested the Rx/Tx crossover between the FTDI breakout and USB and the terminals speak to each other as one would expect.

3

Turns out the FTDI was sending 5V signal and using 3V3 for logic. So I just brought it all down to the 3V3 and one of the modules appears to be working normally now.