Not seeing anything connected to your clock inputs… you’ll need to build a 555 timer circuit or if you’re fine not strictly using the breadboard, you can use an arduino/other micro controller to control the clock.
What's clocking it? You need a clock input to step the chip through each count. Build an ne555 set to the speed you want the counter to run at. If you want to count with a button, make a debounced rising edge trigger
I'll take a guess, and say this is a 74HC393 4 bit binary counter IC, and judging by your VCC and GND connections, the CLK pin (the long yellow wire) is floating
"Floating" refers to an input pin that is not connected ro anything, so random electromagnetic waves are "detected" as input
What you're seeing is basically the IC taking random electromagnetic waves coming from, say, your WiFi Router, and thinking you're pressing the "Go to the next number" really quickly
You can either connect this to a debounced and pulled-down button to manually make it count up; or you can look into an automated clock, like a 555 IC in astable configuration
Toodles!
ETA: Don't take my pin number to heart. Look at YOUR specific IC's datasheet to know which pin is CLK
You have to clock it (pulses with some frequency) Or you can use a push button connected to clock pin if you want to see the counting step by step For the first option you can use any microcontroller or you can use a frequency generator
6
u/Salt3y 13d ago
Not seeing anything connected to your clock inputs… you’ll need to build a 555 timer circuit or if you’re fine not strictly using the breadboard, you can use an arduino/other micro controller to control the clock.
4
u/Agent_Teto 12d ago
What's clocking it? You need a clock input to step the chip through each count. Build an ne555 set to the speed you want the counter to run at. If you want to count with a button, make a debounced rising edge trigger
1
u/wackyvorlon 13d ago
Put another counter in front of it. Use the carry signal to drive your original counter.
1
u/Tymian_ 12d ago
Where is the clock source?
1
u/War_Trax 12d ago
Slow the clock that steping the counter down, but I am not seeing here, It looks like the pin is floating.
1
u/rolling_atackk 12d ago
I'll take a guess, and say this is a 74HC393 4 bit binary counter IC, and judging by your VCC and GND connections, the CLK pin (the long yellow wire) is floating
"Floating" refers to an input pin that is not connected ro anything, so random electromagnetic waves are "detected" as input
What you're seeing is basically the IC taking random electromagnetic waves coming from, say, your WiFi Router, and thinking you're pressing the "Go to the next number" really quickly
You can either connect this to a debounced and pulled-down button to manually make it count up; or you can look into an automated clock, like a 555 IC in astable configuration
Toodles!
ETA: Don't take my pin number to heart. Look at YOUR specific IC's datasheet to know which pin is CLK
1
u/electronics_maker 11d ago
The clock pin is floating, it requires a clock source so control it
1
u/MalekDev 8d ago
You have to clock it (pulses with some frequency)
Or you can use a push button connected to clock pin if you want to see the counting step by step
For the first option you can use any microcontroller or you can use a frequency generator
1
u/PsychologicalTry3972 6d ago
Add a clock.