Can I access to android hardware from the outside?

Question

I am writing a middleware that collects data from several sensors. I want to get data even from android device, reading the value from their sensor such as gps.

How can I get the data from these device? Is it possible from the outside to have the access to the android hardware of the device?

Answer 1

How can I get the data from these device?

Write an app that runs on the device, gathers the sensor data, and publishes it in some fashion where you can pick up the data from the "outside" (WiFiDirect, Bluetooth, Internet/local WiFi network, etc.).

Is it possible from the outside to have the access to the android hardware of the device?

Only by means of talking to some program running on the device.