Chris Greening
@atomic14.bsky.social
I’m working on an exciting project - bringing my childhood computer back to life: https://www.crowdsupply.com/cmg-research/esp32-rainbow
Haven't posted for a while...
November 13, 2025 at 10:48 AM
Haven't posted for a while...
This brings back some happy memories :)
Original audio and analysis here: www.windytan.com/2012/11/the-...
Original audio and analysis here: www.windytan.com/2012/11/the-...
August 24, 2025 at 4:32 PM
This brings back some happy memories :)
Original audio and analysis here: www.windytan.com/2012/11/the-...
Original audio and analysis here: www.windytan.com/2012/11/the-...
Pretty impressed this worked. Back when I was doing my PhD simply extracting the numbers from an image reliably would have been a good result.
August 19, 2025 at 7:38 PM
Pretty impressed this worked. Back when I was doing my PhD simply extracting the numbers from an image reliably would have been a good result.
Been messing around with my latest PCB - I've now got a "digital twin". More details at the video: www.youtube.com/watch?v=6vpd...
August 13, 2025 at 3:56 PM
Been messing around with my latest PCB - I've now got a "digital twin". More details at the video: www.youtube.com/watch?v=6vpd...
Lates MakerNews is out! makernews.substack.com/p/maker-news...
July 1, 2025 at 1:09 PM
Lates MakerNews is out! makernews.substack.com/p/maker-news...
This is some serious packing - a box within a box within a box. The displays have arrived safely!
January 20, 2025 at 5:57 PM
This is some serious packing - a box within a box within a box. The displays have arrived safely!
Nothing like scratching your own itch. Wanted a nice easy way to convert from ZX Spectrum SCR files to PNGs. There are some nice command line tools for doing it, but here's my web version. www.esp32rainbow.com/tools/scr-to...
January 17, 2025 at 10:52 AM
Nothing like scratching your own itch. Wanted a nice easy way to convert from ZX Spectrum SCR files to PNGs. There are some nice command line tools for doing it, but here's my web version. www.esp32rainbow.com/tools/scr-to...
Nice bit of bathroom electrics :)
December 31, 2024 at 4:49 AM
Nice bit of bathroom electrics :)
And I think this is testing to see what interference is getting back into the power supply (though I'm not completely sure).
December 15, 2024 at 6:05 PM
And I think this is testing to see what interference is getting back into the power supply (though I'm not completely sure).
Here's the setup to see what my board is radiating along with the test setup.
December 15, 2024 at 6:05 PM
Here's the setup to see what my board is radiating along with the test setup.
My poor boards got zapped... and they survived! We passed EMC and EMI tests ⚡
December 15, 2024 at 6:05 PM
My poor boards got zapped... and they survived! We passed EMC and EMI tests ⚡
Well, this is fine…
December 6, 2024 at 11:05 AM
Well, this is fine…
Keyboard is a bit useless on the T-Deck. But this is running the same software as my ESP32 Rainbow.
December 5, 2024 at 9:09 PM
Keyboard is a bit useless on the T-Deck. But this is running the same software as my ESP32 Rainbow.
It works - but unfortunately without reprogramming the keyboard controller it’s pretty useless.
December 3, 2024 at 9:44 PM
It works - but unfortunately without reprogramming the keyboard controller it’s pretty useless.
Pretty pleased with my new cable management - though I need more now!
November 24, 2024 at 12:31 PM
Pretty pleased with my new cable management - though I need more now!
Sometimes have to lunch myself when I look out the window.
November 23, 2024 at 9:47 AM
Sometimes have to lunch myself when I look out the window.
Even closer! I'm going to stop posting updates on this until it's funded - otherwise it's going to get a bit boring for everyone :)
November 21, 2024 at 3:38 PM
Even closer! I'm going to stop posting updates on this until it's funded - otherwise it's going to get a bit boring for everyone :)
Getting very close to fully funded! www.crowdsupply.com/cmg-research...
November 20, 2024 at 11:05 PM
Getting very close to fully funded! www.crowdsupply.com/cmg-research...
They appear to have stopped responding to me... I believe I have won this particular internet battle :)
November 20, 2024 at 1:10 PM
They appear to have stopped responding to me... I believe I have won this particular internet battle :)
I try not to let comments like this annoy me, but you do see them an awful lot.
news.ycombinator.com/item?id=4218...
news.ycombinator.com/item?id=4218...
November 20, 2024 at 9:48 AM
I try not to let comments like this annoy me, but you do see them an awful lot.
news.ycombinator.com/item?id=4218...
news.ycombinator.com/item?id=4218...
Ready for another project…
November 19, 2024 at 7:09 PM
Ready for another project…
Got sound working :) Pretty pleased with this - pretty much the same code that's running on my ESP32 runs on the desktop and in the browser.
November 18, 2024 at 10:10 PM
Got sound working :) Pretty pleased with this - pretty much the same code that's running on my ESP32 runs on the desktop and in the browser.
My first try at using emscripten - compiling my ESP32 ZX Spectrum emulator to run in the browser. I can't believe how simple this was!
November 18, 2024 at 3:50 PM
My first try at using emscripten - compiling my ESP32 ZX Spectrum emulator to run in the browser. I can't believe how simple this was!