At the moment I am following the instructions of this project https://github.com/JoernL/LimiTTer. Besides the peripheral parts like a Bluetooth module and an NFC module, the central unit is an Arduino Pro Mini. I am a bloody novice with Arduino and just taught myself how to solder stuff. So far, I successfully uploaded the program from the project above to the Arduino Mini Pro and will continue as soon as the other parts arrive.
Anyhow, since I am strictly following the instructions I have some serious knowledge gaps and hope you can help me out. So, for instance.
- How do I know, how much storage capacity is available on the Arduino board before and after I uploaded something?
- How can I delete a program from the Arduino board?
- When I upload a program, will the program that is already on the Arduino been overwritten?
- Is an Arduino generally used to execute one specific program and not to hold a set of totally different programs?