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I want to know Android Things Platform whether to provide an API to check GPIO status? because I want to make sure GPIO not in use before I open GPIO, I don't want to use try..catch instead of this logic, could you kindly of my question? Thanks.

https://github.com/androidthings/sample-simplepio/blob/master/pwm/src/main/java/com/example/androidthings/simplepio/BoardDefaults.java
line 42:
case DEVICE_RPI3:
return "PWM0";

but
https://github.com/androidthings/sample-nativepio/blob/master/speaker/rpi3_schematics.png
connect PWM1 here.

Facing Problem While running first blink app with RbPi 3
at com.google.android.things.pio.IPeripheralManagerClient$Stub$Proxy.GetGpioClient(IPeripheralManagerClient.java:759) at com.google.android.things.pio.GpioImpl.<init>(GpioImpl.java:50) at com.google.android.things.pio.PeripheralManager.openGpio(PeripheralManager.java:197) at com.example.androidthings.simplepio.BlinkActivity.onCreate(BlinkActivity.java:51)

I wan't to read a value for photocell element, how can it be done with only true/false values?

Facing Problem While running first blink app with RbPi 3
Caused by: java.lang.SecurityException: Caller lacks required permission com.google.android.things.permission.USE_PERIPHERAL_IO at android.os.Parcel.readException(Parcel.java:2004) at android.os.Parcel.readException(Parcel.java:1950) at com.google.android.things.pio.IPeripheralManagerClient$Stub$Proxy.GetGpioClient(IPeripheralManagerClient.java:759) at com.google.android.things.pio.GpioImpl.<init>(GpioImpl.java:50) at com.google.android.things.pio.PeripheralManager.openGpio(PeripheralManager.java:197) at com.example.androidthings.simplepio.BlinkActivity.onCreate(BlinkActivity.java:51)

Is there any plan for Software PWM for Android things?
Can Software PWM be done using NDK?

I have this board http://www.wandboard.org/details/pico-imx6ul and tried the led blinking code but getValue on the gpio pin always returns false. This is true even with nothing connected to the pin so it cannot accidentally be pulled down.

how to control more than 2 servos?because there were only two pwm(pwm0 and pwm1)

On very first time button pressed, repsonse not get instantly
Logcat : GPIO changed, button pressed

and so on button pressed response not got instantly.

Hi, I was testing GPIO with last Google Things image via /sys/class/gpio but I must run it as root user. Whats is correct way for call "PeripheralManagerService" from C++ (NDK) and grant right permissions? In general, where is documentation for NDK layer?

Many thanks, great job guys!