Hi Paul,
Thanks for the reply.
Why on earth are you expecting two decimals places from an int? Why are you using the Double To STRing Formatted function to convert an int to a string?
I will change it.
Why are you using SoftwareSerial, when the Teensy has more than one hardware serial port?
I might need other ports for different purposes.
Why are you using write() to print data?
I will change it.
Most importantly, why do you ASSUME that every AT command will succeed? Why do you NEVER read ant response from the modem?
I do not know how to do this. Can you point me in the right direction?
Why do you think you need to send a student ID and grade to the database every two milliseconds?
I want to send different information to the database. I was doing this to ensure if everything is working correctly. Then later I can prepare the data and modify the php file as needed.