Interfacing - UART from Scratch - Part 3 @weirdboyjim

Uploaded August 2020 | Updated September 2026, 1 week ago

Having built the most basic transmit and receive circuits I needed to do a little work to make the UART ready for interfacing to an external circuit.

In this video I build a basic edge detection circuit using a 74LS04 and 74LS00, a basic building block I think will be useful in the future.

I utilize a "here's one I made earlier" breadboard for generating control and bus signals.

Interfacing - UART from Scratch - Part 3

Clock Divider - Making an 8 Bit pipelined CPU - Part 79

Transfer Register (Completion) - Making an 8 Bit pipelined CPU - Part 56

Memory Bridge - Making an 8 Bit pipelined CPU - Part 53

Programming Snek - Making an 8 Bit pipelined CPU - Part 81

Demo: Rotating Cube On the Homebrew CPU!

General Purpose Registers (2: Schematic and PCB Design) - Making an 8 Bit pipelined CPU - Part 26

Stack (Push & Pop) - Making an 8 Bit pipelined CPU - Part 61

GPIO over SPI over GPIO - IO from Scratch - Part 5