I followed the guide at (scroll down to the section "Improved 555 Oscillator duty cycle) to invert the signal from the 555, and I got the duty cycle ...

@codecage Much appreciated! Thank you.

Hi, and a happy new year to you all. After spending the holidays playing around with the 555 I have come across several schematics for the 555, ...

I got it working, finally :) Thank you for all your help everyone, I`ve learned a lot. Including that tantalum capacitors really do like correct pol...

@zander I kinda missed it, but I have picked up on it. Earlier in this thread 3.3 volts was suggested. As I said in my original post, I have no educat...

@inst-tech ; I`ll try that after work today! Thank you :)

@mday I tried connecting the 555 like you described, but so far I am unable to get it to work. I have been playing around with it for a few days - the...

Thank you for all your good replies. At this moment, I am not sure this is worth the effort to save a few dollars, but for learning about the 555 it...

@zander Thanks :)

@mday ; The diode between the out terminal and the 22kOhm resistor, is that a Zener diode? I went shopping for these, and discovered they had differen...

@mday Thank you! Very helpful picture and link! Waiting for DHL to drop off some more components today, hopefully I will get around to this later this...

@joelyddon Thank you for your answer. At the moment I am using the Adafruit Trinket M0, easy enough to program, and accurate down to the second. My ai...

Thank you all for your patience and the nice welcome to the forums! I am sure I will get the 555 to work like I want it to - eventually :) The v...

@Ron; thank you for the nudge in the right direction. I have no clue how to do that either, so I am learning a lot today :) Found some instructions ...