Hi, I just have a question regarding the use of a 555 timer. My current knowledge of them suggests that using flip-flops they are able to turn a DC voltage into a square wave voltage, which could be considered like an AC source? I have been playing around with it but I must have misinterpreted something. Basically all I want to do is get a yellow diode to blink at a frequency of around 1 Hz, so I can actually see it blink.
I thought this task would be pretty simple...
I picked up two resistors (1K and 2K), and a 330uF capacitor.
The timer gives the equation for frequency: 1.44/((R1 + 2*R2)*C), where R1 = 2K and R2 = 1K. Works out to around 1.09 Hz...
So I set up the circuit using a DC wall adapter (120VAC -> 6VDC; max 330mA) and the diode lights up upon connection but then fails to light up again. The chip got very hot and I started smelling fumes, so I immediately disconnected the circuit.
I am a complete electronics noob and need help with this "seemingly" easy circuit.
Thanks alot,
JP
I thought this task would be pretty simple...
I picked up two resistors (1K and 2K), and a 330uF capacitor.
The timer gives the equation for frequency: 1.44/((R1 + 2*R2)*C), where R1 = 2K and R2 = 1K. Works out to around 1.09 Hz...
So I set up the circuit using a DC wall adapter (120VAC -> 6VDC; max 330mA) and the diode lights up upon connection but then fails to light up again. The chip got very hot and I started smelling fumes, so I immediately disconnected the circuit.
I am a complete electronics noob and need help with this "seemingly" easy circuit.
Thanks alot,
JP