The hardware is a microcontroller
Microcontroller programming refers to the hardware of a microcontroller, which is used for program development. With the support of peripheral devices, the part controlled by software can be implemented through microcontroller programming.

assembly language
The language that microcontrollers can recognize is hardware language, also known as assembly, so programming is implemented around assembly. Some programs are written directly using assembly programs, but those that are difficult to debug, especially those that are difficult to implement on a large scale.

high-level language
Therefore, high-level languages are commonly used to write and then converted into assembly through compilers, such as using C or C.

Digit difference
The programming of microcontrollers may also vary due to their different bit numbers, such as 8-bit microcontroller programming, 16 bit microcontroller programming, 32-bit microcontroller programming, etc., but only a small difference.