Arduino Help Center

Welcome! Here you can find Frequently Asked Questions and troubleshooting articles, created by the Support team.

[U1and0]

“How can I reduce the size of my sketch? The ATmega168 chip on the Arduino board is cheap, but it has only 16 Kb of program code, which isn't very much (and 2 Kb is used by the bootloader). If you're using floating point, try to rewrite your code with integer math, which should save you about 2 Kb