I made the circuit exactly as they told me but I keep getting a steady pulse out of pin3 instead of a square wave. I'm using a 9v battery as my supply and an LED on pin3
Here are a few things I already tried:
1. replacing the 555 timer
2. trying Many diffrent values of resistors and capacitors
3. trying monostable mode(it works)
4. the information sheet says there is an astable mode.
I'm really stuck, If anyone has any suggestions for me I thank you in advance
For resistors Ra and Rb I tried values ranging from 100ohms to 500k ohms (keeping both resistor values the same). and for the capacitor I've tried 100nF to 100uF
To the if Pin3 was giving me a square wave I put an LED there, also tried putting a resistor parallel with a multimeter
For resistors Ra and Rb I tried values ranging from 100ohms to 500k ohms (keeping both resistor values the same). and for the capacitor I've tried 100nF to 100uF
To the if Pin3 was giving me a square wave I put an LED there, also tried putting a resistor parallel with a multimeter
The problem was that I was trying to observe frequencies too high too see with an LED. turns out that if I used diffrent values for Ra and Rb I'll get something that gives a visual demo
one more question though,
I took the connection to ground from the capacitor on pin6 off and the frequency went up.
Can someone explain whats going on?
The problem was that I was trying to observe frequencies too high too see with an LED. turns out that if I used diffrent values for Ra and Rb I'll get something that gives a visual demo