SAMD analog calibration library-where to find it

Products & Technology Arduino & Seeeduino
#1

Hi,
On sigmdel.ca site I found some info on how to calibrate ADC in XIAO, however, the Arduino IDE doesn’t find the proper library (SAMD_AnalogCalibration.h) on my system. All attempts to find information on where to find it failed. There is some stuff on Github, but I have no idea how to navigate this site.
I am rather new to this whole activity so would appreciate any suggestions on how to find it and install it in my Arduino IDE.
Thank you.

XIAO ADC problem
#2

How far do you want to calibrate the ADC? @krzysiekf

#3

Sorry, but I don’t understand your question.
I just want to do the automatic calibration by some XIAO library piece of code that supposedly exists and should be included in the Seeeduino XIAO board library but it’s not.

#4

Hi krzysiekf
If you just want to run “CorrectADCResponse.ino” on XIAO, you can do it by following steps :
1 Access “https://github.com/arruino/AruduinoCore-samd/”
2 Click “Code (green button) -> Download ZIP” to download “ArduinoCore-samd-master.ZIP”
3 Unzip to a suitable location
4 Folder “ArduinoCore-samd-master/libraries/SAMD_AnalogCorrection”
Copy into “C:/User/xxxxxxxx/Documents/Arduino/libraries”

Now, even if you select XIAO board, “SAMD_AnalogCorrection” will appear in “File -> Examples -> Examples from Custum Libraries”.

#5

@msfujino
I am following your advise.
The code compiles and uploads, but there is no response from the XIAO. Nothing coming in the serial monitor.
Please advise.

#6

I found the issue, and copy it here in case others have the same problem.

Code for the XIAO seem to need a pause after Serial.begin(9600), waiting for the serial port to be available.
Solution is to add this line after Serial.begin(9600):
while(!Serial);

1 Like
#7

Fyi fixing the link for anyone else coming here: