John (j0ono0)
@johnnewall.bsky.social
Visual designer with an interest in technology. Illustration, photography, papercraft, electronics, and coding all mashed together.
Reposted by John (j0ono0)
My Zero to ASIC courses are the most recognized, highest-rated programs, and still the only ones that guarantee a tapeout!
Start your journey toward holding a custom ASIC in the palm of your hand and save $150 with code Z2ABLACK25.
ZeroToASICcourse.com
Start your journey toward holding a custom ASIC in the palm of your hand and save $150 with code Z2ABLACK25.
ZeroToASICcourse.com
November 28, 2025 at 11:42 AM
My Zero to ASIC courses are the most recognized, highest-rated programs, and still the only ones that guarantee a tapeout!
Start your journey toward holding a custom ASIC in the palm of your hand and save $150 with code Z2ABLACK25.
ZeroToASICcourse.com
Start your journey toward holding a custom ASIC in the palm of your hand and save $150 with code Z2ABLACK25.
ZeroToASICcourse.com
Reposted by John (j0ono0)
Good news! We open sourced the Pebble mobile app today -> github.com/coredevices/mobileapp Now all the software that powers your new Pebble is 100% open source. Read the full scoop on my blog ericmigi.com/blog/pebble-...
GitHub - coredevices/mobileapp
Contribute to coredevices/mobileapp development by creating an account on GitHub.
github.com
November 24, 2025 at 6:09 PM
Good news! We open sourced the Pebble mobile app today -> github.com/coredevices/mobileapp Now all the software that powers your new Pebble is 100% open source. Read the full scoop on my blog ericmigi.com/blog/pebble-...
Reposted by John (j0ono0)
I was looking through my old projects and found this. I love how it looks and want to do more with this www.redblobgames.com/x/1638-voron...
November 18, 2025 at 11:26 PM
I was looking through my old projects and found this. I love how it looks and want to do more with this www.redblobgames.com/x/1638-voron...
Reposted by John (j0ono0)
This is your last chance to vote for the #DDDAdelaide 2025 Agenda!
Voting closes midnight tonight!!!!
👉 Vote Now: dddadelaide.com/vote/voting 👈
✅ Voting closes tonight, Sunday 28th of September at 11:59pm
✅ Talks are democratically selected by the community
✅ Vote as many times as you want
Voting closes midnight tonight!!!!
👉 Vote Now: dddadelaide.com/vote/voting 👈
✅ Voting closes tonight, Sunday 28th of September at 11:59pm
✅ Talks are democratically selected by the community
✅ Vote as many times as you want
September 27, 2025 at 11:05 PM
This is your last chance to vote for the #DDDAdelaide 2025 Agenda!
Voting closes midnight tonight!!!!
👉 Vote Now: dddadelaide.com/vote/voting 👈
✅ Voting closes tonight, Sunday 28th of September at 11:59pm
✅ Talks are democratically selected by the community
✅ Vote as many times as you want
Voting closes midnight tonight!!!!
👉 Vote Now: dddadelaide.com/vote/voting 👈
✅ Voting closes tonight, Sunday 28th of September at 11:59pm
✅ Talks are democratically selected by the community
✅ Vote as many times as you want
Reposted by John (j0ono0)
What happens when one of the main providers that enables #opensource #silicon to thrive...shuts down? Companies like @mith.ro's new wafer.space jump in and offer an even more compelling option. $7K for 1000 chips on the GlobalFoundries GF180MCU process. Learn more:
theamphour.com/703-building...
theamphour.com/703-building...
September 25, 2025 at 6:19 PM
What happens when one of the main providers that enables #opensource #silicon to thrive...shuts down? Companies like @mith.ro's new wafer.space jump in and offer an even more compelling option. $7K for 1000 chips on the GlobalFoundries GF180MCU process. Learn more:
theamphour.com/703-building...
theamphour.com/703-building...
Reposted by John (j0ono0)
Only a few more days until voting closes for #DDDAdelaide 2025 Agenda!
Get your votes in before Sunday!
👉 Vote today: dddadelaide.com/vote/voting 👈
✅ Voting closes Sunday 28th of September at 11:59pm
✅ Talks are democratically selected by the community
👉 Vote today: dddadelaide.com/vote/voting
Get your votes in before Sunday!
👉 Vote today: dddadelaide.com/vote/voting 👈
✅ Voting closes Sunday 28th of September at 11:59pm
✅ Talks are democratically selected by the community
👉 Vote today: dddadelaide.com/vote/voting
September 24, 2025 at 11:22 PM
Only a few more days until voting closes for #DDDAdelaide 2025 Agenda!
Get your votes in before Sunday!
👉 Vote today: dddadelaide.com/vote/voting 👈
✅ Voting closes Sunday 28th of September at 11:59pm
✅ Talks are democratically selected by the community
👉 Vote today: dddadelaide.com/vote/voting
Get your votes in before Sunday!
👉 Vote today: dddadelaide.com/vote/voting 👈
✅ Voting closes Sunday 28th of September at 11:59pm
✅ Talks are democratically selected by the community
👉 Vote today: dddadelaide.com/vote/voting
Coding some sensor firmware with ESP32 IDF took a few weeks longer than I thought it would, but finally all working (again). Telling myself the learning experience was worth the effort. #esp32 #electronics
September 19, 2025 at 1:54 AM
Coding some sensor firmware with ESP32 IDF took a few weeks longer than I thought it would, but finally all working (again). Telling myself the learning experience was worth the effort. #esp32 #electronics
Reposted by John (j0ono0)
🫨Last chance! CFP closes TODAY for #DDDAdelaide 2025! This is your moment to get your talk on the stage 🚀
🕛Submissions close this Friday at 11:59 PM ACST
👉 Submit your idea today: dddadelaide.com/cfp
🕛Submissions close this Friday at 11:59 PM ACST
👉 Submit your idea today: dddadelaide.com/cfp
September 4, 2025 at 11:58 PM
🫨Last chance! CFP closes TODAY for #DDDAdelaide 2025! This is your moment to get your talk on the stage 🚀
🕛Submissions close this Friday at 11:59 PM ACST
👉 Submit your idea today: dddadelaide.com/cfp
🕛Submissions close this Friday at 11:59 PM ACST
👉 Submit your idea today: dddadelaide.com/cfp
I'm learning that every day is 'technical debt day'. It's just that some day I'm actively reducing it and other passively increasing it.
August 13, 2025 at 2:42 AM
I'm learning that every day is 'technical debt day'. It's just that some day I'm actively reducing it and other passively increasing it.
Reposted by John (j0ono0)
PyCon AU 2025 tickets are available now — and score a limited-edition conference T-shirt! 👕✨
🐍 Be part of Australia’s biggest Python event
🧠 Learn from top speakers and workshops
🎫 Choose the ticket type that suits you
👉 Book now 2025.pycon.org.au/attend?ref=bs
#PyConAU #Python #Data #AI
🐍 Be part of Australia’s biggest Python event
🧠 Learn from top speakers and workshops
🎫 Choose the ticket type that suits you
👉 Book now 2025.pycon.org.au/attend?ref=bs
#PyConAU #Python #Data #AI
August 5, 2025 at 11:38 PM
PyCon AU 2025 tickets are available now — and score a limited-edition conference T-shirt! 👕✨
🐍 Be part of Australia’s biggest Python event
🧠 Learn from top speakers and workshops
🎫 Choose the ticket type that suits you
👉 Book now 2025.pycon.org.au/attend?ref=bs
#PyConAU #Python #Data #AI
🐍 Be part of Australia’s biggest Python event
🧠 Learn from top speakers and workshops
🎫 Choose the ticket type that suits you
👉 Book now 2025.pycon.org.au/attend?ref=bs
#PyConAU #Python #Data #AI
August 4, 2025 at 5:14 AM
Reposted by John (j0ono0)
Farewell Shunsaku Tamiya: The Man Who Gave Us The Best Things To Build
Farewell Shunsaku Tamiya: The Man Who Gave Us The Best Things To Build
In the formative experiences of most Hackaday readers there will almost certainly be a number of common threads, for example the ownership of a particular game console, or being inspired …read more
hackaday.com
July 31, 2025 at 11:30 AM
Farewell Shunsaku Tamiya: The Man Who Gave Us The Best Things To Build
Reposted by John (j0ono0)
I made a new mouth mechanism. I'm calling it Selectramatronics.
July 24, 2025 at 3:22 AM
I made a new mouth mechanism. I'm calling it Selectramatronics.
This prototype cycle for my temperature and humidity tracker is almost complete with a new 50% slimmer case. It's been quite a journey #electronics #kicad #esp32 #micropython #blender #3dprinting
July 24, 2025 at 12:48 AM
This prototype cycle for my temperature and humidity tracker is almost complete with a new 50% slimmer case. It's been quite a journey #electronics #kicad #esp32 #micropython #blender #3dprinting
More tests: x2 devices reporting overnight. One on my desk and the other by a window that gets morning sun. Graphs made in #Grafana. Devices are ESP32C3, #Sensirion sensors and running #Micropython. Testing a smaller battery, hence diverging battery readings. #electronics #ESP32
July 15, 2025 at 1:17 AM
More tests: x2 devices reporting overnight. One on my desk and the other by a window that gets morning sun. Graphs made in #Grafana. Devices are ESP32C3, #Sensirion sensors and running #Micropython. Testing a smaller battery, hence diverging battery readings. #electronics #ESP32
2nd custom sensor board created and working 🎉
1) macro shot of solder paste
2) parts placement in progress
3) finished and functioning
#electronics #esp32 #micropython #kicad
1) macro shot of solder paste
2) parts placement in progress
3) finished and functioning
#electronics #esp32 #micropython #kicad
July 8, 2025 at 6:20 AM
2nd custom sensor board created and working 🎉
1) macro shot of solder paste
2) parts placement in progress
3) finished and functioning
#electronics #esp32 #micropython #kicad
1) macro shot of solder paste
2) parts placement in progress
3) finished and functioning
#electronics #esp32 #micropython #kicad
Temperature and humidity sensor development continues on the software front. Sleeping the hardware for 4secs between reads yields ~34.5 hrs of life on a 1100mAh battery. Going to try caching data locally and connecting/sending across the network less often next. #esp32 #micropython #electronics
July 7, 2025 at 1:17 AM
Temperature and humidity sensor development continues on the software front. Sleeping the hardware for 4secs between reads yields ~34.5 hrs of life on a 1100mAh battery. Going to try caching data locally and connecting/sending across the network less often next. #esp32 #micropython #electronics
Reposted by John (j0ono0)
I've just updated my minimal Raspberry Pi GPIO pinout, fixing the print CSS (still some work to do, I think) and making interfaces clickable to highlight related pins: pi.pinout.xyz
Raspberry Pi Pico GPIO Pinout
An interactive, accessible and beautiful GPIO Pinout guide for the Raspberry Pi Pico
pi.pinout.xyz
July 5, 2025 at 11:04 AM
I've just updated my minimal Raspberry Pi GPIO pinout, fixing the print CSS (still some work to do, I think) and making interfaces clickable to highlight related pins: pi.pinout.xyz
Made a little case for my custom temperature/humidity sensor board. Feels like a really real prototype now ☺️. #3dprint #blender #electronics #esp32 #micropython
July 1, 2025 at 7:01 AM
Made a little case for my custom temperature/humidity sensor board. Feels like a really real prototype now ☺️. #3dprint #blender #electronics #esp32 #micropython
Reposted by John (j0ono0)
oh wow it's actually happening. a promising foss 2d design app is taking off
June 30, 2025 at 11:33 AM
oh wow it's actually happening. a promising foss 2d design app is taking off
Social media loves graphs right?
Logging humidity, temperature and battery voltage with my custom ESP32 board is working nicely. Guess where in the graph I switched from USB to battery power. #esp32 #electronics #grafana #micropython
Logging humidity, temperature and battery voltage with my custom ESP32 board is working nicely. Guess where in the graph I switched from USB to battery power. #esp32 #electronics #grafana #micropython
June 26, 2025 at 1:59 AM
Social media loves graphs right?
Logging humidity, temperature and battery voltage with my custom ESP32 board is working nicely. Guess where in the graph I switched from USB to battery power. #esp32 #electronics #grafana #micropython
Logging humidity, temperature and battery voltage with my custom ESP32 board is working nicely. Guess where in the graph I switched from USB to battery power. #esp32 #electronics #grafana #micropython
It's a miracle. My custom esp32 board is working. #micropython installed and now playing with various features. #esp32 #electronics
June 24, 2025 at 6:59 AM
It's a miracle. My custom esp32 board is working. #micropython installed and now playing with various features. #esp32 #electronics
Paste applied and ready to reflow. #electronics #esp32
June 23, 2025 at 10:10 PM
Paste applied and ready to reflow. #electronics #esp32
From pictures on a screen to real PCBs a few days later. I'm all setup to try some new assembly techniques. Stencil paste application and reflow on a cute hot-plate. Feels like it should be easy. That's usually a sure sign I have no idea what I'm doing! #electronics #esp32
June 23, 2025 at 5:38 AM
From pictures on a screen to real PCBs a few days later. I'm all setup to try some new assembly techniques. Stencil paste application and reflow on a cute hot-plate. Feels like it should be easy. That's usually a sure sign I have no idea what I'm doing! #electronics #esp32