B4R Question Change analog input resolution from 10 bit to 12 bit "MKR1010"

Åke Johansson Bravida · May 3, 2019

The Due, Zero and MKR Family boards have 12-bit ADC capabilities that can be accessed by changing the resolution to 12.
This will return values from analogRead between 0 and 4095.
How do I enable this in B4R?

Thank you
Åke Artklo

thetahsk · May 3, 2019

Åke Artklo Bravida said:
The Due, Zero and MKR Family boards have 12-bit ADC capabilities that can be accessed by changing the resolution to 12.
This will return values from analogRead between 0 and 4095.
How do I enable this in B4R?

Thank you
Åke Artklo

Use inline c code and call analogReadResolution(12) to set 12 bit adc resolution.

https://www.b4x.com/android/forum/threads/inline-c-c.65714/

Åke Johansson Bravida · May 3, 2019

Ok I try that.

Thank you

Åke Johansson Bravida · May 12, 2019

Hello again I try to use this code:
But I do something wrong i get error

b4r_main.cpp:35:23: error: expected constructor, destructor, or type conversion before '(' token
analogReadResolution(12);

Private Sub AppStart
Serial1.Initialize(115200)
Log("AppStart")
RunNative("analogReadResolution", Null)
analog_A0.Initialize(analog_A0.A0,analog_A0.MODE_INPUT) 'Tempsensor
End Sub

#if C
analogReadResolution(12);

#End if

thetahsk · May 13, 2019

Åke Artklo Bravida said:
Hello again I try to use this code:
..

Try this

B4X:

Private Sub AppStart
   
   ...
   RunNative("Set_ADC_12bit", Null)
   ...
End Sub

#if C
void Set_ADC_12bit(B4R::Object* o) 
{
  analogReadResolution(12);
}
#End if

Åke Johansson Bravida · May 13, 2019

No, I got this error.

C:\project\B4R\TJMQTT~1\Objects\bin\sketch\b4r_main.cpp: In function 'void Set_ADC_12bit(B4R::Object*)':
b4r_main.cpp:37:26: error: 'analogReadResolution' was not declared in this scope
analogReadResolution(12);
^
exit status 1

Any suggestion?

thetahsk · May 13, 2019

Åke Artklo Bravida said:
No, I got this error.

C:\project\B4R\TJMQTT~1\Objects\bin\sketch\b4r_main.cpp: In function 'void Set_ADC_12bit(B4R::Object*)':
b4r_main.cpp:37:26: error: 'analogReadResolution' was not declared in this scope
analogReadResolution(12);
^
exit status 1

Any suggestion?

Do you have installed all lib's in the Arduino IDE for your MKR1010 ?
Write a short programm in the Arduino IDE which call's the analogReadResolution(12) function.

Åke Johansson Bravida · May 13, 2019

Yes I made this test in Arduino IDE for mkr 1010.

void loop() {

analogReadResolution(12);
Serial.print(", 12-bit : ");
Serial.print(analogRead(A0));

}

Sketch compiled no error.

Erel · May 13, 2019

This code compiles fine when I set the board type to Arduino Due:

B4X:

Private Sub AppStart
   Serial1.Initialize(115200)
   Log("AppStart")
   RunNative("Set_ADC_12bit", 0)
End Sub

#if C
void Set_ADC_12bit(B4R::Object* o)
{
  analogReadResolution(12);
}
#End if

Åke Johansson Bravida · May 13, 2019

Ok first i can´t find board type Arduino DUE in my boardlist is there an update to my boardlist?
I tested with MKR1000 and that compiled without any error.
So I changed back to MKR1010 and now it actually compiled without any error ??????? very strange??
Now it´s running.

Problem solved Thank you.

B4R Question Change analog input resolution from 10 bit to 12 bit "MKR1010"

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