Hello again...
I have worked through the tutorials for both the Grove- HCHO Sensor and MQ3 Gas Sensor v1.5 and am displaying values for them. I have opened the Serial Monitor and have had no problems with the code. I do have one more question- are the values displayed in the serial monitor cumulative between both sensors? By values I really mean ratios. I have attached a screenshot of what I am getting:
Thank you so much! I am so excited about where my project is going.!