16F18313 dual output noise generator from Electric Druid
I poked through the junkbox and found a 16F18313 PIC. Interesting that this chip has a 16F prefix but only 8 pins. Usually the 8 pin PICs have a 12F prefix.
So I was able to use the hex file kindly provided by Electric Druid here:
https://electricdruid.net/noise2-white-pink-noise-source/
It's pin compatible with the previous version so I used the same breadboard to try it out but I disconnected the RC filter.
First here is the white noise output on pin 3:
And here is the pink noise output on pin 7:
It seems to work fine. My only comment is that I got a weird interruption noise on the pink output pin 7 when I tried to record it directly to the Sangean MP3 recorder. So I ended up recording both via an output from an LM380 audio amplifier. I'm not sure what the problem was but it sounded like a bad connection.
Next steps will be to continue with non-PIC methods of noise generation and also to try keying the noise in some fashion.
Best Regards,
Chuck, WB9KZY
http://wb9kzy.com/ham.htm