问题描述
正在开发一个应用程序，我可以从ELM327获取数据，并在Android device.But我有一个疑问显示它的ELM327是不可控的，我的意思是不能跟上自动将数据发送到Android设备，所以怎么会我能够从ELM327.I提取数据是真的卡住here.So帮助将是AP preciated.Thank你！
am developing an application where I can get data from ELM327 and display it on an android device.But I have a doubt,the ELM327 is not controllable,I mean it cant keep sending data automatically to the android device,so how would I be able to pull data from the ELM327.I am really stuck here.So help would be appreciated.Thank you!
谁能帮我命令我在Android的使用从ELM 327得到的反应？我怎么会只接收速度和转速的类型？我怎样才能读取该数据并显示它在Android设备上？
Can anyone help me with the type of commands I have to use in android to get responses from ELM 327?How would I only receive speed and rpm?How can I read that data and display it on the android device?
推荐答案
榆树设备是命令/响应装置，它要求你为了发出一个命令，以使ELM对其进行处理，与ECU系统进行通信，然后格式化并提供响应返回给你。你不会得到一个ELM327芯片不请自来的邮件（回复）除了在上电时，信号被发送，或者，除非你将设备设置成监听模式。
The ELM device is a command/response device which requires you to send a command in order for the ELM to process it, communicate with the ECU system, then format and deliver the response back to you. You won't get unsolicited messages (responses) from an ELM327 chip except on power up when the signature is sent, or unless you set the device into a monitor mode.
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