Science Buddies: "Ask an Expert"

Hi! We are 2 students in garde 10 looking for help for our "Dealing with Diabetes: The Road to Developing an Artificial Pancreas" project.

We are having trouble coding with our arduino, more specifically how to get numbers on the pump calibration. We've set everything up including putting on pancreas model in the water and we are getting signals from the arduino however we are not getting voltage numbers.

Can you please tell us how to use the pump calibration code on the arduino.

Thank you!

Hi,

Can you clarify what exactly you mean by "we are getting signals from the arduino however we are not getting voltage numbers"? Do you mean that you are running the calibration code and have opened the serial monitor, but it is only printing out zeroes?

If so, this could be caused by a loose connection or misplaced wire somewhere in your circuit. Our Arduino troubleshooting video might help you identify the problem:

https://youtu.be/9GLaU-BCEQM?si=wOBS2oQgezEamqlZ

If you have a multimeter available, as described in procedure step 5a, you can also use it to confirm that the circuit is working and outputting a voltage, in which case the problem may be with the connection to the Arduino.

If you are still having trouble, you can upload well-lit, in focus pictures of your circuit here, with a top-down view of the breadboard so we can clearly see all the connections, and we can help you troubleshoot.

Thanks,

Ben