[sdiy] traffic lights

[Oren Leavitt]

Back in the 1970s I built a traffic light from a magazine article that 
used a few 40xx series CMOS ICs and some transistors to drive the lamps.
If I find the article, I'll post it.
Nowadays, you can do this easily with a PIC, Arduino, or whatever 
microcontroller and some transistors to drive the 12V lamps.

On 12/14/25 7:58 AM, david walker via Synth-diy wrote:
> Hello hope sum one can help but i got sum Grain of Wheat Bulbs 12V red 
> yellow and green so you can see were i am going with them what i would 
> like to does any have any simple designs like using a 555 or sum other 
> essay to use compotes so make a set of traffic lights so any help would 
> be a big thanks Emoji