Wisors/OBD2Connect

iOS 9/10 Compatibility

Kalvin126 opened this issue · 11 comments

Hey Wisor,

Awesome start on OBD2Connect. Are you able to get this working on iOS9/10 devices? My own OBD project no longer works. Trying your demo project, it request times out as well. It connects fine, but requests time out.

I previous had an iPhone 5 running iOS 8 that had ELM transmissions working properly, but I no longer have said device.

Hi Kalvin126,

I tried it on iPhone 7 iOS 10 and it works. I have two Wi-Fi adapters (ELM327 v1.5 and STN1170) and it is compatible with both of them. You should try to increase timeout interval, because by default it sets to 0.1 sec:
let connection = OBDConnection(requestTimeout: 2) // Timeout in seconds

I tried 1 second, but it timed out as well. I'll increasing it further. Would you be open to contributions?

Yeap, you are welcome to contribute.
Try to check your adapter with any free OBD app from AppStore (for example https://itunes.apple.com/app/obd-car-doctor/id652142348). Is it work?

Also, It would be great to check is there any data received from adapter in one of the methods of OBDConnection class:
private func handleReceived(data: Data)

Alright awesome. I actually just confirmed my obd wifi adapter is dead. Time to get another one :p

Might I ask what specific ELM327 adapter you are using? I have a Veepeak mini ELM327 v1.5 adapter. I tried it with obd car doctor and it work just fine actually. I guess I need to further debug.

I have the cheapest Noname adapter you can buy on aliexpress, but it actually works fine for me. I should notice, that my framework has responsibility to transfer data between adapter and a phone.
So, inside demo project I sent only ATZ command to reset the adapter to default settings. Usually, ATSP0 command follows next.
And as I mentioned earlier func handleReceived(data: Data) would be the best place to start to debug the adapter response. Good luck!

Ok so, I put a breakpoint in handleReceived(data:. Ocaissionally I would get a response of ?\r\r> when sending ATZ command. The response seems like garbage though... This is through my iPad Air 2 with iOS 10.2, iPhone 6s 10.2.1, MacOS Sim 9.3/10.2

Sorry for a late response. All commands must follow with a close line character \r and the response with ? character means that your adapter doesn't understand provided command.

No problems. I am just trying to get to the bottom of this. Apps like OBD Car Doctor from the app store work. Its able to send AT Z then the AT SP 0 commands.

It's incorrect to compare this framework to app from app store. OBD2Connect just a "data-tube". It connects your API above it and OBD2 adapter only, all commands syntax and response handling are up to you.

Right, I understand that. I am just saying that they are able to send the same ATZ command and get a valid response back. Will be closing this issue indefinately.