Please, pay attention to Bluetooth version. So, I recommend using Bluetooth 4.0 adapters with iOS devices (iPhone/iPad). This is Apple iOS restriction and there’s no way to overcome it.ģ) Some Wi-Fi adapters are not compatible with iOS 11: Apple iOS 11 simply doesn’t route traffic to adapter Wi-Fi network (depends on adapter network configuration). Unfortunately, there is no way to use Wi-Fi adapter on iOS, while app is in background. The only exception to this rule is OBLink MX+ device, that uses classic Bluetooth, but is compatible with iOS devices, because OBDLink manufacturer was approved by Apple and included in a special list of allowed devices.īluetooth 4.0 adapters have some advantages, comapring to Wi-Fi adapters:ġ) Wi-Fi adapters would interfere with mobile Internet, Bluetooth 4.0 adapters doesn’t interfere with mobile Internet.Ģ) Apple iOS allows Car Scanner to work with Bluetooth LE (4.0) adapters in background, even when Car Scanner window is minimized. 1.х, 2.х, 3.х) are not compatible with iPhone/iPad, due to Apple iOS limitations. Bluetooth (classic, versions 1.х, 2.х, 3.х)Īpple iOS (iPhone/iPad) supports Bluetooth LE ( 4.0) and Wi-Fi adapters.You can find one on eBay, Amazon, Aliexpress, Google or Bing using keywords “elm327 bluetooth” or “elm327 wifi”.ĭepending on connection type adapters can be divided into 3 groups: Car Scanner is compatible with ELM327 based OBDII adapters, working via classic Bluetooth (ver.1.x, 2.x, 3.x), Bluetooth LE (4.0) or Wi-Fi, depending on your device operating system.

Obd2 software for elm 327