www.e-stim.net

Hi
I want to extend my 2B Estim device with an internal Bluetoothe to RS232 interface. Which voltage level has the RS232 interface, 3.3V or 5V? Is there enough space inside the case to place the interface inside the 2B case?
Thanks

I would not look at trying to do anything internal.
1) Warranty
2) This cuts the external audio interface off. I am unsure what would happen if you disabled the commander mode but still used the audio input with serial data.

You would be better looking at makign a small interface box or better yet use the USB cable to a small PC.
I have mine hooked up to a Raspberry Pi Zero W. That lets me use software on there to control the 2B.

Have fun.

Hi!

It works fine with the HC-05 Bluetooth-Board...
Look here, and see how I implemented it into the 2B:
viewtopic.php?f=19&t=8770#p12785

Cu
mills