This is an AI Generated Summary
Many of the blog posts I wrote when I was young are no longer available on this website.
However, AI was used to summarize the content of the original post into a single sentence
as described in my 2003 article,
Summarizing Blog Posts with AI.
Summary:
The author has a fully functional prototype of their Microcontroller Powered Prime Number Generator and plans to add more features and work on the code before being done tomorrow.
This summary was generated in 56.21 seconds
from an original post containing 234 words.
This is an AI Generated Summary
Many of the blog posts I wrote when I was young are no longer available on this website.
However, AI was used to summarize the content of the original post into a single sentence
as described in my 2003 article,
Summarizing Blog Posts with AI.
Summary:
The author of the blog post observed that the rate at which primes are discovered appears to be linear over time, rather than following an inverse exponential curve as might be expected.
This summary was generated in 52.78 seconds
from an original post containing 508 words.
This is an AI Generated Summary
Many of the blog posts I wrote when I was young are no longer available on this website.
However, AI was used to summarize the content of the original post into a single sentence
as described in my 2003 article,
Summarizing Blog Posts with AI.
Summary:
The author of the blog post describes how they built an electronic project that involves programming a microcontroller to blink LEDs and output sound in response to button presses, and also includes a power supply circuit that they are harvesting for use in the project.
This summary was generated in 53.91 seconds
from an original post containing 221 words.
Now that I’ve worked-out the software side of the microcontroller-powered prime number generator, it’s time to start working on the hardware. I want to make a prototype which is far smaller and simpler than the final version but lets me practice driving lots of LEDs (30). I expect the final version to have around 80. Also, the heart of this project is an ATTiny2313 microcontroller, and for the full version I’d like to use an ATMEega8. I picked up an unfinished wooden box with a magnetic latch from Michaels. It’s delicate and tends to chip when you drill it, but moving slowly I’m able to make nice evenly-spaced holes.
__This is the circuit concept. __The chip is an ATTiny2313, sourced with 5V, where the left pins control the columns (by providing current) and the right pins control the rows (by providing ground). The “holes” at the top of the circuit represent where I hook up my PC and external power for testing purposes.
Thoughts from Future Scott (10 years later, August, 2019)
A+ for enthusiasm and construction but your design is... just no!
Why are you using an external crystal?
The schematic for the crystal is wrong: those capacitors should be to ground not in series!
You made the circuit diagram in InkScape!
You shouldn't drive current directly out of the microcontroller pins.
The majority of the microcontroller CPU cycles will go into managing multiplexing of the display (not calculating primes).
After a little more work I have a functional device and it looks better than I expected. There are a few more features I want to add, and I want to work on the code some more, but I hope to be done tomorrow. The coolest part is that I’ve included an internal button which drives a pause/resume and speed-controller menu based upon the length of button presses! There’s a lot of awesome stuff I want to write, but once again, I’ll save it for the completed project page.
I rendered the cover sticker wrong and all the LEDs are mislabled. The first LED should be 2^0 (1), and the second should be 2^1 (2), etc. Also, 2^22 and 2^23 are mislabeled - oops! But the thing really does generate, differentiate, and display [only[ prime numbers. Once again, videos (including demonstration of the menus and the programming options) and source code will be posted soon.
This is an AI Generated Summary
Many of the blog posts I wrote when I was young are no longer available on this website.
However, AI was used to summarize the content of the original post into a single sentence
as described in my 2003 article,
Summarizing Blog Posts with AI.
Summary:
The author of the blog post is guessing that they could perform 1,000 divisions per second on a computer display and would take approximately 3472 days (or about 9 and a half years) to complete 300 billion divisions using this method.
This summary was generated in 61.83 seconds
from an original post containing 447 words.
