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Torque » Torque OBD ECU Scanner » Torque Discussion / Ideas » elm 327 usb adapter

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Author Topic: elm 327 usb adapter
EVTrike
Member
Posts: 2
Post Re: elm 327 usb adapter
on: September 2, 2017 (GMT)

Hi

New here, great info everywhere on the forum BTW so apologies if my question has already been asked.

I have an Arduino 2650 Mega happily communicating with Torque Pro via bluetooth (HC06), it took me a little while reading up how to go about it but very pleased when I got it working, so thanks for all the info.

I then read that Torque Pro will talk to some USB connected ELM327 OBDII readers, this got me thinking I should try to connect the same Arduino code via USB instead of Bluetooth, OTG Host cable etc.

I downloaded ArduinoCommander, ArduinoDroid and Android USB Serial Lite.

Downloading these apps installs the serial drivers, allows the Arduino to be enumerated etc, When I open the serial monitor I can see the Arduino sending serial comms through the OTG USB port and it arriving in the Serial Monitor.

So things I know to be true are:

1) My Android device works in host mode.
2) Android can enumerate the Arduino USB bridge correctly.
3) Serial data from the Arduino is seen in my Android serial
monitor, presumably as a virtual serial port.

From what I’ve read Torque Pro needs to see a Prolific or FTDI USB bridge.

I think the Arduino Mega256 uses a ATmega16U2 for the uart to USB bridge.

Given that I can see there is a driver path, i.e. I can even program the Arduino from my Android Phone using ArduinoDroid, is it possible to get Torque Pro to use the Arduino virtual serial port driver that is installed with ArduinoDroid.

Torque Pro does see the Arduino, asks to set as default app for the device, but never properly connects. No compatible devices are available. Although it clearly keeps trying to connect.

I have not yet to setup a loopback so that I can see if Torque is sending data, this could just be a protocol issue. I’ve set the baud rate to automatic, also set the Arduino code to 115200 and Torque to 115200. So I don’t think its a baud rate problem.

The bluetooth connection works great, using mode 6 (CANBUS) 11/500.

Any info for USB connection appreciated, maybe which protocols Torque Pro tries to connect with via USB? , relevant threads etc.

Thanks for reading

EVT

EVTrike
Member
Posts: 2
Post Re: elm 327 usb adapter
on: September 2, 2017 (GMT)

Hi

Thought I should add the USB info for the Arduino.
Any and all clues appreciated.

EVT

Device ID: 1002
Device Name: /dev/bus/usb/001/002
Device Class: Communications and CDC Control(0x02)
Device Sub Class: Reserved(0x00)
Device Protocol: Unknown(0x00)
Vendor ID: 9025(Arduino SA)
Product ID: 66(Mega 2560 R3 (CDC ACM))
Interface Count: 2
———————————————–
Interface ID: 0
Interface Class: Communications and CDC Control(0x02)
Interface Sub Class: Abstract (modem) Control Model(0x02)
Interface Protocol: AT-commands (v.25ter)(0x01)
Interface Endpoint Count: 1
======================================
Endpoint Number: 2
Endpoint Address: 130
Endpoint Direction: IN
Endpoint Interval: 255
Endpoint Max Packet Size: 8
Endpoint Type: Interrupt endpoint type
———————————————–
Interface ID: 1
Interface Class: CDC-Data(0x0a)
Interface Sub Class: Unused(0x00)
Interface Protocol: Unknown(0x00)
Interface Endpoint Count: 2
======================================
Endpoint Number: 4
Endpoint Address: 4
Endpoint Direction: OUT
Endpoint Interval: 1
Endpoint Max Packet Size: 64
Endpoint Type: Bulk endpoint type
======================================
Endpoint Number: 3
Endpoint Address: 131
Endpoint Direction: IN
Endpoint Interval: 1
Endpoint Max Packet Size: 64
Endpoint Type: Bulk endpoint type

steffen
Member
Posts: 1
Post Re: elm 327 usb adapter
on: June 6, 2019 (GMT)

I have a
0403:6001 Future Technology Devices International, Ltd FT232 Serial (UART) IC
as the thread starter but cannot connect using all of the baud rates. How to solve this? The thread starter mentioned a boud rate of 38400 8-N-1. But I cannot set in the app.

santa2003007
Member
Posts: 30
Post Re: elm 327 usb adapter
on: June 9, 2019 (GMT)

USB adapter on my PIC18F25K80 chip and the FTDI RS232 Converter.
I connect to can not.
Android USB Adapter sees the program Torque tries to connect but can’t.

Vasilich
Member
Posts: 193
Post Re: elm 327 usb adapter
on: July 23, 2019 (GMT)

@piemmm
is there any chance to fix USB driver for FTDI and Prolific USB OBD adapters?
I have same problem – no connection to ECU from Torque, though it works with other software on same headunit.

F-150Torqued
Member
Posts: 437
Post Re: elm 327 usb adapter
on: July 23, 2019 (GMT)

^^^^^^^^^ SAME PLEA ^^^^^^^ X 100

The FTDI USB adapter has the HS / LS switch built in and seems it would expand Torque’s ultimate capability. Also the additional speed achievable by USB interface would be helpful in lots of instances.

Please.

(we’ll even pay more)

———————

54371019

rs5sc
Member
Posts: 11
Post Re: elm 327 usb adapter
on: January 5, 2021 (GMT)

Hi, i wanted to check prior to purchasing whether the USB adapter from OBDlink (SX) would work with my android device.

The device is a little bit of an odd one as it’s a custom Aliexpress tablet that connects to my Audi’s MMI system…

but! it does have USB ports, when i connected a flash drive to one with some photos and videos on it, it reads it fine via a file manager, it runs android 9.0.

The only concern is that when i run the “USB Host Check” app, it says “OK” to the first line “android.hardware.usb.host.xml” but it says “USB host not enabled under “handheld_core_hardware.xml” and “not found” under “tablet_core_hardware.xml”…

I’m sorry but I’m not a programmer so a little “green” at this… do you think it should work? (judging that the android version is above 4.0 and that the USB flash drive works, i would have though “yes” but the USB Host Check app threw me off a little…)

Thanks very much in advance!!!

sanat
Member
Posts: 3
Post Re: elm 327 usb adapter
on: July 30, 2021 (GMT)

How to make Torque work with elm327 usb at 500K baud?
There is no such option in the settings.

My elm327 usb only runs at 500K baud with android.

The automatic speed option does not work.

sanat
Member
Posts: 3
Post Re: elm 327 usb adapter
on: August 5, 2021 (GMT)

How to make Torque work with elm327 usb at 500K baud?
There is no such option in the settings.

My elm327 usb only runs at 500K baud with android.

The automatic speed option does not work.

https://a.d-cd.net/ZsE2C1DUNMByZGm66VlyyTj2JTA-1920.jpg

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