If, however, they don't seem to be a great fit for your needs, there are several other small Arduino boards you can use instead, including the Micro (18 by 48 mm), MKR Zero (25 x 61.5 mm) and MKR ...

The Arduino programming language uses a variant of the C/C++ language, ... After learning how the Blink sketch works, you can move on to the other examples that use external components.