John (j0ono0)
@johnnewall.bsky.social
Visual designer with an interest in technology. Illustration, photography, papercraft, electronics, and coding all mashed together.
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
August 4, 2025 at 5:14 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
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
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
Several hours and over 3200 data points of logging later...
* Device crashed once. Probably failed sending(?), I have no error catching in the code.
* 1100mAh battery look like it'll last about 18hours
* I can tell when the heater cycles on/off (It's winter here)
* Device crashed once. Probably failed sending(?), I have no error catching in the code.
* 1100mAh battery look like it'll last about 18hours
* I can tell when the heater cycles on/off (It's winter here)
June 26, 2025 at 10:30 AM
Several hours and over 3200 data points of logging later...
* Device crashed once. Probably failed sending(?), I have no error catching in the code.
* 1100mAh battery look like it'll last about 18hours
* I can tell when the heater cycles on/off (It's winter here)
* Device crashed once. Probably failed sending(?), I have no error catching in the code.
* 1100mAh battery look like it'll last about 18hours
* I can tell when the heater cycles on/off (It's winter here)
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
Learning from previous mistakes and making sure parts fit before PCB production. #esp32 #electronics
June 16, 2025 at 3:03 AM
Learning from previous mistakes and making sure parts fit before PCB production. #esp32 #electronics
"This is my schematic. There are many like it but this one's mine. My schematic is my best friend. It is my life. I must master it as a must master my life."
Entertaining the idea of making a project board with an ESP32_C3 module. #esp32 #electronics
Entertaining the idea of making a project board with an ESP32_C3 module. #esp32 #electronics
May 28, 2025 at 2:03 AM
"This is my schematic. There are many like it but this one's mine. My schematic is my best friend. It is my life. I must master it as a must master my life."
Entertaining the idea of making a project board with an ESP32_C3 module. #esp32 #electronics
Entertaining the idea of making a project board with an ESP32_C3 module. #esp32 #electronics
Testing this neat little #Sensirion SCD30 CO2 sensor on a breadboard at the moment. First thoughts: I live in an atmospheric cesspit! In the background is a #Pico2. Made fast progress with the help of #MicroPython
#electronics
#electronics
April 16, 2025 at 4:54 AM
Testing this neat little #Sensirion SCD30 CO2 sensor on a breadboard at the moment. First thoughts: I live in an atmospheric cesspit! In the background is a #Pico2. Made fast progress with the help of #MicroPython
#electronics
#electronics
Got a few orders delivered before the TradeWarz™ game gets outta hand. #electronics
April 9, 2025 at 8:03 AM
Got a few orders delivered before the TradeWarz™ game gets outta hand. #electronics
OTA updates are so impersonal. That's why I deliver my firmware updates over a bowl of ramen. Gave the hardware a sparkly red case upgrade too. #electronics #hardware #gamedev #3dprinting #attiny85
March 21, 2025 at 4:28 AM
OTA updates are so impersonal. That's why I deliver my firmware updates over a bowl of ramen. Gave the hardware a sparkly red case upgrade too. #electronics #hardware #gamedev #3dprinting #attiny85
March 19, 2025 at 5:02 AM
Another attempt at building this handheld ATtiny85 game console. My neatest bodgie wires yet, and a first attempt at hot air soldering. #electronics #microcontroller #soldering
March 6, 2025 at 2:29 AM
Another attempt at building this handheld ATtiny85 game console. My neatest bodgie wires yet, and a first attempt at hot air soldering. #electronics #microcontroller #soldering
When you don't have a screwdriver small enough but do have a watchmaker friend. Thanks Richard (R McMahon Watchmakers) I can now adjust the volume on my game console
March 5, 2025 at 10:12 AM
When you don't have a screwdriver small enough but do have a watchmaker friend. Thanks Richard (R McMahon Watchmakers) I can now adjust the volume on my game console
And then there were two. My first game console found a new home so I had to make myself another. #electronics #gameconsole #attiny85
March 4, 2025 at 12:46 AM
And then there were two. My first game console found a new home so I had to make myself another. #electronics #gameconsole #attiny85
Glamour shots of my assembled attiny85 game console. Pocket sized but comfortable to play.
Thanks @pcbwayofficial.bsky.social for reaching out and sponsoring this project! The PCBs look great and also survived my truly terrible soldering (see previous posts). #electronics #attiny85 #microcontroller
Thanks @pcbwayofficial.bsky.social for reaching out and sponsoring this project! The PCBs look great and also survived my truly terrible soldering (see previous posts). #electronics #attiny85 #microcontroller
February 6, 2025 at 6:31 AM
Glamour shots of my assembled attiny85 game console. Pocket sized but comfortable to play.
Thanks @pcbwayofficial.bsky.social for reaching out and sponsoring this project! The PCBs look great and also survived my truly terrible soldering (see previous posts). #electronics #attiny85 #microcontroller
Thanks @pcbwayofficial.bsky.social for reaching out and sponsoring this project! The PCBs look great and also survived my truly terrible soldering (see previous posts). #electronics #attiny85 #microcontroller
Still on holiday. A small selection of calming beach vistas that I've been traversing.
January 22, 2025 at 3:54 AM
Still on holiday. A small selection of calming beach vistas that I've been traversing.
I'm on holidays so you all get holiday snaps for a little while. This is Admirals Arch, Kangaroo Island, Australia.
January 15, 2025 at 10:04 AM
I'm on holidays so you all get holiday snaps for a little while. This is Admirals Arch, Kangaroo Island, Australia.
A few photos of the finished attiny85 game console hardware and a second attempt at bodge wiring (see previous post for entertainingly bad 1st try). Considering the chip is 5mm wide, and it is all working, I'm feeling like I did good. #electronics #attiny85
January 8, 2025 at 11:52 PM
A few photos of the finished attiny85 game console hardware and a second attempt at bodge wiring (see previous post for entertainingly bad 1st try). Considering the chip is 5mm wide, and it is all working, I'm feeling like I did good. #electronics #attiny85
Attiny85 game console hardware troubleshooting - Unbelievably, it does work. Macro photo for your entertainment and to document the ridiculous troubleshooting journey I took. #hardware #attiny85 #electronics
January 6, 2025 at 1:09 AM
Attiny85 game console hardware troubleshooting - Unbelievably, it does work. Macro photo for your entertainment and to document the ridiculous troubleshooting journey I took. #hardware #attiny85 #electronics