Template ; A detailed example of how publish on P.F.W.

Algorithms ; Random numbers, etc.

Communication-Protocols ; SPI, I2C, Wireless, etc.

Data-Structures ; Primitive circular buffer, etc.

System-Software ; Assembler, Disassembler, etc.

Programming-Tools ; Development support, helpers

Programming-Pearls ; Examples of idiomatic (Forth) programming style

User-Applications ; Games, Robotics, etc.

Curiosities ; Not so serious contributions but interesting and/or entertaining.

Sensors ; Electronic sensors for measuring temperature, distance, etc.