pro*banshee
New Member
Hi, my name is Dan and I'm working on an LED retrofit for a '73 cougar (that one with the sequencing taillights).
I created alternating red and green sections of LEDs to light up, the green being just for shows and the red which will be for braking/stopping/sequencing turns.
All told, there are 20 channels per side with 40 altogether.
This is a problem since my basic stamp only has a maximum of 16 I/O pins, and after feeding it a marker, brake, left and right signal line that's reduced down to 12 pins.
Is there any way I can talk to all 40 channels or even just 20 of them utilizing the 12 pins I have left free?
I COULD use four 4017's and trigger them seperately, which I probably will do in the short term... but I'd like to have a microcontroller so I can utilize all kinds of special effects with a click or two of a button.
If there are any recomendations, including perhaps moving to a PIC I'd appreciate the help.
Thank you
I created alternating red and green sections of LEDs to light up, the green being just for shows and the red which will be for braking/stopping/sequencing turns.
All told, there are 20 channels per side with 40 altogether.
This is a problem since my basic stamp only has a maximum of 16 I/O pins, and after feeding it a marker, brake, left and right signal line that's reduced down to 12 pins.
Is there any way I can talk to all 40 channels or even just 20 of them utilizing the 12 pins I have left free?
I COULD use four 4017's and trigger them seperately, which I probably will do in the short term... but I'd like to have a microcontroller so I can utilize all kinds of special effects with a click or two of a button.
If there are any recomendations, including perhaps moving to a PIC I'd appreciate the help.
Thank you