Hi, I'm tinkering with 555 timers to devise a clocker for analog synthesizers, using sequential triggers from a monostable 555 timer chain.
Looking at the alternating LED flasher circuit (e.g., as found here http://forum.allaboutcircuits.com/blog/cookbook-entries.381/), it occurred to me that maybe I could derive triggers from both the sinking and the sourcing side on pin 3 instead, thereby using chained 555 timers to sequentially double the frequency of the triggers.
I breadboarded the alternating LED flasher and a second 555 timer in monostable mode, but I can only get the second timer to trigger from the sourcing side of the flasher. Should the sinking side be able to provide a trigger, or am I misunderstanding how the outputs of both sides work?
I'm new to all of this, so any help would be greatly appreciated.
Thanks.
dl
P.S. I realize that what I'm trying to do could be more easily accomplished using a decade counter driven by a 555, but I like the challenge, and figure it's a good way to learn about the ins and outs of 555 timers.
Looking at the alternating LED flasher circuit (e.g., as found here http://forum.allaboutcircuits.com/blog/cookbook-entries.381/), it occurred to me that maybe I could derive triggers from both the sinking and the sourcing side on pin 3 instead, thereby using chained 555 timers to sequentially double the frequency of the triggers.
I breadboarded the alternating LED flasher and a second 555 timer in monostable mode, but I can only get the second timer to trigger from the sourcing side of the flasher. Should the sinking side be able to provide a trigger, or am I misunderstanding how the outputs of both sides work?
I'm new to all of this, so any help would be greatly appreciated.
Thanks.
dl
P.S. I realize that what I'm trying to do could be more easily accomplished using a decade counter driven by a 555, but I like the challenge, and figure it's a good way to learn about the ins and outs of 555 timers.