JavaME: как подключить к телефону внешний датчик?

[azakharo]

Добрый день!

Очень извиняюсь, что вопрос набран на английском. Просто вначале напечатал его на английском, а писать еще раз на русском - лень. Думаю, сейчас по-английски все понимают... : )

Алексей


I have an external sensor (personal, mobile). For example, a thermometer. I'd like to connect it to an ordinary mobile phone (no OS, just JavaME) and write JavaME application which reads data from that sensor and displays them on the screen.

My understanding was that I could connect sensor to phone using the audio jack (headphone jack), because every phone has that jack. But I didn't find any info how to read data through that jack.

So, my questions are:

1) Is it possible to connect an external sensor to phone's headphone jack and read data from it in JavaME application? How? Code example?

2) What are the other ways to connect an external sensor to JavaME phone? Bluetooth? Sms?

Thanks for your help!

[izinin]

you can use only available ports as Bluetooth , USB, WiFi --- check PC connectivity API , as for headphone jack -- you will have to implement sound spectrum analyzer first and then invent some protocol to communicate with your device -- it will depend on ability your device to generate sound --- so finally that is called "mission impossible"

Use common approach

Regards,
Igor

[azakharo]

Hi Igor,

Thanks for reply!

> you will have to implement sound spectrum analyzer first and then
> invent some protocol to communicate with your device
>
This is exactly the way we are currently going to the target.