Im quite new with arduino. Ive done quite many tutorials that you can make with arduino starter kit and now i want to learn something new and bit useful.
My coffee machine transfers data from machine. It shows for example how many coffees youve taken from it and faults.
Could you help me start with this, what books i need to read or tutorials to take to learn handling with that data? Im planning that it tracks the data to my computer via wifi shield.
The first step is the physical connection between the vending machine and the Arduino. I cannot find anything on the three sites that describes the physical connection. What do you know about it?
For serial protocols, I usually start work on a PC. Debugging is much easier. Once the code is working reasonably well, I move it to the Arduino.
A board with more than one serial port (like an Arduino Mega) would be very helpful to you. You can use one serial port (Serial) for debugging and a second serial port (e.g. Serial1) to communicate with the vending machine.