hi, i need some advice here, I want to use Bluetooth for remote logging, and simple command control, especially STOP!!!
I understand the Seeed BT module is class 2, I have a class 1 dongle which I have been testing with some other class 2 units I now get sufficent range indoors which is around 20 meters which is much better than the previous class 2 to class 2 I was using, do you reckon the seeed bt module would be similar in range to that? I know things vary but anyone have experience
(The dongles am I testing are using SPP serial coms)
- which BT module, bees, shields etc?
a. I have a seeed mega, and not sure which way to go, pure BT module and build me own, bit of a pain or
BT Bee, and a xbee shield ? but what about the UartSB?
b. I envisage needing to have work a bit at the AT sequences quite a bit (hahaha) so programming from a PC via something like the USARTSB but does this then allow for direction arduino connection and disable the USB-FDTI connector?
- Power and ttl-cmos?
Powering the BT module is 3.3 volt but looking at the drawings for the shileds and bees they do not seem to have any 5V to 3V supply or conversion, just switches/jumpers labelled 5v or 3.3 could someone please explain, the drawing are n’t too clear.
edited for typos and clarity