Hi,
I'm playing with 555s and here's my current problem. Here's a schematic of a 555 in the monostable mode.
http://examples.oreilly.com/9780596153755-files/mkel_04/mkel_04_015.pdf
The idea here is that you press S1, the LED comes on for about 5 seconds and turns off. The S2 is for interrupting that process any time.
I would like to add to this schematic one just like it (let's call it IC2) except for the S1 and S2. So that when pin 3 of IC1 goes low, IC2's pin 2 detects it and turns on its own LED. When the pin 3 of IC2 goes low, it is somehow detected by IC1 and the process continues indefinitely. In other words, I want them to trigger each other.
I tried putting a jumper wire from 3 of IC1 to 2 of IC2, but that only lights up the LED of IC2 once and the process stops because there's constant low voltage on pin 3 of IC1, which doesn't let IC2 to turn off.
Thanks for any suggestions.
I'm playing with 555s and here's my current problem. Here's a schematic of a 555 in the monostable mode.
http://examples.oreilly.com/9780596153755-files/mkel_04/mkel_04_015.pdf
The idea here is that you press S1, the LED comes on for about 5 seconds and turns off. The S2 is for interrupting that process any time.
I would like to add to this schematic one just like it (let's call it IC2) except for the S1 and S2. So that when pin 3 of IC1 goes low, IC2's pin 2 detects it and turns on its own LED. When the pin 3 of IC2 goes low, it is somehow detected by IC1 and the process continues indefinitely. In other words, I want them to trigger each other.
I tried putting a jumper wire from 3 of IC1 to 2 of IC2, but that only lights up the LED of IC2 once and the process stops because there's constant low voltage on pin 3 of IC1, which doesn't let IC2 to turn off.
Thanks for any suggestions.