I have a bistable 555 timer which works great (if connected to a led, it goes on when one button is pushed and off when the other button is pushed), I have a astable 555 timer which works great(if connected to an led, the led blinks on and off), problem is when I connect the outputs off the timers to the decade counter. Output of the astable counter goes to pin 1 of the 4026, okay. Output of the bistable 555 goes to pin 2. Okay, the decade starts counting. Normal, since the bistable is at low, but if I press the button to activate it (as I was doing to activate the led), the counter stops counting, but only as long as i keep the button pressed. If I let go, the counter starts counting again... But it's supposed to stay stopped because it's a bistable counter...
Why is it happening?
The circuit is from the book make electronics. It's experiment 19, page 185
Here is the schematic ( There's no picture of the complete schematic, sorry)
Why is it happening?
The circuit is from the book make electronics. It's experiment 19, page 185
Here is the schematic ( There's no picture of the complete schematic, sorry)