I am trying to connect ADS1015 ADC with my Pico Pro Maker. Unfortunately, I got folowing error:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.cililing.harvbox.thingsapp, PID: 1855
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:448)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: com.google.android.things.pio.PioException: android.os.ServiceSpecificException: I2C2 is already in use (code 16)
at com.google.android.things.pio.I2cDeviceImpl.<init>(I2cDeviceImpl.java:43)
at com.google.android.things.pio.PeripheralManager.openI2cDevice(PeripheralManager.java:246)
at com.google.android.things.contrib.driver.adc.ads1xxx.Ads1xxx.<init>(Ads1xxx.java:200)
at com.google.android.things.contrib.driver.adc.ads1xxx.Ads1xxx.<init>(Ads1xxx.java:187)
at com.cililing.harvbox.thingsapp.thingscontroller.controllers.ADS1015ControllerImpl.<init>(ADS1015Controller.kt:12)
at com.cililing.harvbox.thingsapp.ui.MainActivity$i2CController$2.invoke(MainActivity.kt:40)
at com.cililing.harvbox.thingsapp.ui.MainActivity$i2CController$2.invoke(MainActivity.kt:33)
at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
at com.cililing.harvbox.thingsapp.ui.MainActivity.getI2CController(Unknown Source:25)
at com.cililing.harvbox.thingsapp.ui.MainActivity.access$getI2CController$p(MainActivity.kt:33)
at com.cililing.harvbox.thingsapp.ui.MainActivity$i2cLogger$1.run(MainActivity.kt:47)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: android.os.ServiceSpecificException: I2C2 is already in use (code 16)
at android.os.Parcel.readException(Parcel.java:2027)
at android.os.Parcel.readException(Parcel.java:1959)
at com.google.android.things.pio.IPeripheralManagerClient$Stub$Proxy.OpenI2cDevice(IPeripheralManagerClient.java:1243)
at com.google.android.things.pio.I2cDeviceImpl.<init>(I2cDeviceImpl.java:41)
at com.google.android.things.pio.PeripheralManager.openI2cDevice(PeripheralManager.java:246)
at com.google.android.things.contrib.driver.adc.ads1xxx.Ads1xxx.<init>(Ads1xxx.java:200)
at com.google.android.things.contrib.driver.adc.ads1xxx.Ads1xxx.<init>(Ads1xxx.java:187)
at com.cililing.harvbox.thingsapp.thingscontroller.controllers.ADS1015ControllerImpl.<init>(ADS1015Controller.kt:12)
at com.cililing.harvbox.thingsapp.ui.MainActivity$i2CController$2.invoke(MainActivity.kt:40)
at com.cililing.harvbox.thingsapp.ui.MainActivity$i2CController$2.invoke(MainActivity.kt:33)
at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
at com.cililing.harvbox.thingsapp.ui.MainActivity.getI2CController(Unknown Source:25)
at com.cililing.harvbox.thingsapp.ui.MainActivity.access$getI2CController$p(MainActivity.kt:33)
at com.cililing.harvbox.thingsapp.ui.MainActivity$i2cLogger$1.run(MainActivity.kt:47)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
I am using following driver: https://github.com/androidthings/contrib-drivers/tree/master/adc
What I've already done:
I have no idea what can I do more. I am pretty sure that device is connected properly (scl-scl, sda-sda, addr-gnd, a0-other_analog_output) to main board and error is actually kind of strange, as I am sure that none other app uses those pins.
code responsible for connecting with peripheral:
class ADS1015ControllerImpl(val i2cName: String,
val range: Int) : ADS1015Controller {
private val instance: Ads1xxx = Ads1xxx(i2cName, Ads1xxx.Configuration.ADS1015)
init {
instance.inputRange = range
}
override fun read(channel: Int, logger: (Int) -> Unit) {
logger.invoke(
instance.readSingleEndedInput(channel)
)
}
override fun release() {
instance.close()
}
}
The error message I2C2 is already in use (code 16)
means you are trying to open more than one connection to the same I2C bus without closing the previous instance. The code to open the I2C connection lives within the Ads1xxx
constructor. You must either manage a single instance of this class in your code, or be certain that you call close()
on the current Ads1xxx
before initializing another one.
Based on the stack trace, it also looks like this device is being initialized by a lazy load when the value it first accessed, so it's possible that this constructor is not getting invoked at the point you expected, causing things to come out of order.
In fact, the problem was a badly soldered plug. :)
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