I want to use the DAC in a project but I am just not able to make it work correctly. The maximum output voltage of the DAC is somehow limited to 2.2V only. When running the DAC demonstration code from Seeed’s website I get the full voltage swing but when I run my sketch I only get up to 2.2V. The pr…

The following code works. #include <Arduino.h> void setup() { SerialUSB.begin(9600); while(!SerialUSB); pinMode(A1, INPUT); // pinMode(A0, OUTPUT); // DAC port is not specified as OUTPUT analogReadResolution(10); analogWriteResolution(10); while(1){ // analogWrite(A0, …

Having trouble using Xiao's DAC

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msfujino December 4, 2022, 8:07am 4

See link below.