Highly Integrated Bluetooth IC Simplifies Design. March 19, 2001. Placing all RF, ... To make a complete Bluetooth product, however, you still need the baseband circuits in at least one other chip.

This project presents a Morse code generator system built using Arduino Nano, Bluetooth module (HC 05), and various integrated circuits (ICs) including 74147, 7404, 74154, 74LS30A, ... The 10 to 4 ...