Ian, thank your very much for your help and time! I find the way how to change the baudrate on my adapter to 115200 and its working now with your program! For changing the baudrates of usb adapters by your program and chek if is working, you can use AT commands such as:
1. Temporary change and test
>AT BRD hh [ try Baud Rate Divisor hh ]
This command is used to change the RS232 baud
rate divisor to the hex value provided by hh. The actual
baud rate (in kbps) will be 4000 divided by this divisor.
For example, a setting of 115.2kbps would require a
divisor of 4000/115.2 or 35. In hexadecimal notation,
35 is written as 23, so the actual command that needs
to be sent would be AT BRD 23.
2. Permanently (as I made)
>AT PP 0C SV 23
then enable the new value for use:
>AT PP 0C ON
And reconnect the adapter.

I just want to say “Thanks” for the update. It actually came through late last night as I was futzing with it (unsuccessfully) trying to change the adapter to 115k BAUD. It didn’t want to do it. It says 38400 BAUD on the back label so I think maybe it can’t. I switched Torque to 38400 with the new update and all works perfectly. Acer Iconia A500 (Honeycomb) to cheapo eBay orange/blue USB adapter to ’99 4Runner. It does everything my old BR-3 did, and more.

Another Update:
Tested today 115 and 230k baud. With 115kbaud i get 57PID/s and with 230k baud 67PID/s. Also want to try 460k baud, but i am scared that i will lose connection and have to open the adapter to reset it to 38k baud.

Hi!

You won’t be able to use USB on anything less than Android 3.1 (which has the USB API), so Android 2.3.4 won’t work with USB as it doesn’t have the OS support for it

The requirements for USB are:

* An android device running at least Android 3.1 and supports USB ‘Host’ mode

* An ELM327 compatible USB adapter which uses a ‘Prolific’ or ‘FTDI’ usb to serial chip inside it

* (if you have a mini usb connector only) a USB ‘OTG’ converter cable that will let you connect a normal USB device (you can find these on ebay)

* Torque Pro

That’s about it, if you have Torque pro, plug the USB device in and it should then ask to start Torque. Go into the settings, set Torque up to use USB (and then scroll down and select the USB device) and you should then be able to connect to the USB adapter!

Hi
I have a problem:
I have:
-An smartphone Samsung gs2 updated on ics 4.0.3
-An ELM327 compatible USB adapter which uses a ‘FTDI’ usb to serial chip inside it (on win7 system managment result) and tested on another win prgrams
-an mini USB OTG converter cable

Torque pro don’t see adpter,
when plug ELM327 in the miniUSB converter it’s light red on but phone don’t generate any pop up or other reaction
if I plug Elm327 in the car i have some Yellow lamp after only red but not other on the phone
I have tryed enter in torque, change baud rate at 38400, plug , unplug, quit, reboot……etc
but telephone don’t comunicate with Elm327
have any solution?

Hi

The free version currently doesn’t support USB, it’s only in the pro version (due to the extra development initially required for this) – I’ll be porting it to the lite version in the next update cycle for the lite version though.

Hi again Ian, I have gone ahead and downloaded Torque Pro and having selected the USB Interface and adjusted to various Baud rates I still cannot connect with my ELM 327 interfaced to my OBD connector getting the error unable to connect to the ECU or similar. The information that I have on my ELM 327 is :- ELM 327 v 1.4a OBDI to RS232 Interpreter, Protocol ISO 15765-4 CAN (11 Bit ID 500K Bt/s, OBD System EOBD (Europe). With this information can you tell me how to connect my system which is running Android 4.0.4 on an A1CS Fusion5 Premium 10″ tablet.
I have been able to use the ELM 327 adapter with a program called ScanTool on my laptop at a baud rate of 38400 but even that rate doesn’t allow me to connect to Torque.
What do you suggest?
Thank you, John.

Hi

Yes – on some vehicles (CANBUS) ones, you should see a faster read speed as it removes some of the latency of the bluetooth radio used on the bluetooth adapters (though the speed isn’t a fault of bluetooth – it’s an adapter thing. With the OBDLink MX on bluetooth, you can get upwards of 50PIDs/second on a canbus vehicle)

On vehicles using older protocols (like ISO9141) you may not see much of an increase in speed. This is because the ISO9141 protocol the ECU uses is quite slow

Hi Thanks but still no luck connecting my ELM 327 interface.
With my tablet turned on but Torque not yet selected I plug in the ELM 327 to the tablet, on either the micro usb port or the micro host port and I get one red light on the adapter. If I plug in the adapter to the OBD II port on the car without it being connected to the tablet I get a quick series of red and yellow lights ending with just the same one red light showing.
The same thing happens if I connect to the OBD II post while the USB connector is attached to the tablet. At no time does the Torque application respond to the plugging in of the adapter to the tablet or even when plugging or unplugging the adapter to the car.
I have opened up the adapter and the chips that I can read are :-
Large chip PIC 18F2480-1/SO 11170JW
Medium chip FTDI 1121-C GN091281 FT 232RL
Small chip LM 317 PN FSL

Oval shaped cans L 12000 and JF4M13E17A
The board states ELM 327 V3.0
Tha adapter says it supports all OBDII Protocols.
Now WHY would it not work when I have all that information?
Any help would be appreciated. John

Hi

Testing on a PC will rule out any issues with the adapter so you’ll know if it’s a good one or not…

Have you configured Torque to use the correct baud rate for the adapter? If it’s a clone adapter, then the baud rates for them are either 9600 or 19200 (the default in Torque is 115200 which is likely too fast if you are using a clone)

Set the baud rate in the settings before plugging the adapter in (ideally, set the baud rate, quit the app, then plug the adapter in) the app should auto-start when the adapter is connected and if you have the correct baud rate selected you should then be up and running!