A 6502 SBC: Working prototype To mark my own use and knowledge of 40 years of the 6502, I decided to build my own little single board computer (SBC) based on it. I had a few ideas in-mind – one … Continue reading
Category Archives: General Update
In 1976, Steve Wozniac wrote what’s commonly known simply as Wozmon. Wozmon is a machine-code monitor program and for those who may not be aware, this is essentially code that starts to run in a microprocessor at initial power on. … Continue reading
The Gigatron is a TTL computer and when I first heard about it, I thought that with that name, I had to get one… … and there it is. https://gigatron.io/ So what is it? It’s the brainchild of Marcel van … Continue reading
I said I’d leave the hard parts to last – well, even with these done, we’re not done yet, but it’s time to tackle the rain fall and wind speed sensors. These are slightly different from the others in that … Continue reading
At this point I have a little “main” program that sits in a loop reading most of the sensors and simply printing them to the screen. I’ve created an individual little file for each sensor and given them names – … Continue reading
Now it’s a matter of plumbing it all together. I have created a Makefile – by copying an existing one and changing it (I used the one from the gpio program because it’s similar) then I took the weather.c program … Continue reading
The story so-far… In the beginning the universe was created… Then after a while came weather with the inhabitants of a little blue-green planet having a great interest in this weather – presumably because there was so much of it… … Continue reading
Now its time to look at the rain gauge and wind speed sensors. As far as I can tell, these are just single-bit inputs on the GPIO connector. I don’t know which pins and before I wade through the supplied … Continue reading
The big board that the Raspberry Pi sits on in the prototype weather station I have has an on-board 2-channel MCP3426 analog to digital converter. One channel is used to read the air quality sensor, the other reads the wind … Continue reading
Following on from the weather station wiringPi page… So I’ve had a thought on the one-wire temperature sensor…. 1-Wire is a well defined system and works well on the Pi, however wiringPi has a “pin” based system, so how about … Continue reading