hi i am looking into dashcommand as a way to data log what obd device are you guys using and what is the cheapest one? i have seen 7 dollar ones (ELM 327) and 120 dollar ones i am looking for the cheapest one please and thank you.

 

Using DC on my I Phone, ELM 327 works just great for me. Make sure it's WIFI.

 

 

I've had an inexpensive one (from Newegg.com $35) and now have an expensive one. They both work really well. With the more expensive one (OBDLink WIFI $120) I get slightly higher sampling rates but not really worth the money unless you're really trying to do "hardcore" data logging.

 

does it only work while on wifi connection? Or Bluetooth as well? I need a connector for my iPhone 5s that works on Bluetooth

 

Bluetooth won't work with the iPhone's

 

so how do we use something like dash command?

 

There are a few options. You can use a Wi-Fi adapter (cheap, effective). You can buy an expensive "made for iPhone" certified Bluetooth adapter. Or you can jailbrake your iPhone, buy a $5 Bluetooth app that bridge to apps such as DashCommand, and a cheap bluetooth. I did the latter.

Note that if your iPhone isn't already jailbroken, you may have to wait. There is a new jailbreak for iOS 8.0/8.1, but it's in Chinese (makes troubleshooting difficult), many jailbreak apps aren't year iOS 8 ready yet, and the jailbreak appears to break sending pictures in the built in Messages app. Not ready for primetime.

 

Great info. Do you have a link for the "made for iPhone" Bluetooth adapter?

 

Ok well I just went ahead and purchased the dash command app, and uh, I'm a little confused. All this info in advanced settings for the car to calibrate everything, I have no idea!

 

For most things you don't need to change/enter/calibrate anything but check out this thread, it has a lot of info in it for Dashcommand.

https://www.northamericanmotoring.co...og-graphs.html

 

There is always the OBDLink MX Wi-Fi, that should work with iPhones.

 

I use the elm327 wifi adapter from Amazon

 

I use the GoPoint bluetooth and DC on my iPhone 4 and iPad 2.

http://gopoint-technology.mybigcomme...bt1-for-apple/

Not Jailbroken or anything. Plug and play works every time.