From Bendyroad

Type details

Type Description Minimum Value Maximum Value
BIT BIT is a 1 bit number. 0 1
U8 U8 is an unsigned 8-bit integer. 0 255
U16 U16 is an unsigned 16-bit integer. 0 65,535
U32 U32 is an unsigned 32-bit integer. 0 4,294,967,295
U64 U64 is an unsigned 64-bit integer. 0 18,446,744,073,709,551,615
S8 S8 is a signed 8-bit integer. -128 127
S16 S16 is a signed 16-bit integer. -32,768 32,767
S32 S32 is a signed 32-bit integer. -2,147,483,648 2,147,483,647
S64 S64 is a signed 64-bit integer. -9,223,372,036,854,775,808 9,223,372,036,854,775,807
F16 F16 is a 16-bit floating point number. Implementation-dependent Implementation-dependent

Each of these data types serves a specific purpose and can be used to optimize memory usage and computational performance in your system.


A BIT represents a binary digit, which is the smallest unit of data in a computer system. It can hold one of two values.

Integer numbers

"Signed" means it can represent both positive and negative values.

"Unsigned" means it can only represent non-negative whole numbers.

Floating point numbers

Floating point numbers are designed to represent real numbers, allowing for a wide range of values with varying degrees of precision. The range and precision of these numbers depends on the specific implementation.

See also: WARNING: Use of Floating-Point Values in Embedded Applications