/diy/ - Do It Yourself

Here is a little silly traffic light controller I put together to learn some basics on STM8 microcontroller programming. The sequence begins with the press of a button.
The switch is de-bounced with an RC filter and a CD4049 NAND gate with schmitt-trigger inputs. The lights are controlled by 74HC164 shift register and CD40175 (quad)/74HC74 (dual) D-flip-flops.