It's Koozie-licious! (3D Printing)
If you have a lot of koozies and are looking for a custom way to store and access them, this koozie holder might just be for you.
My niece requested a koozie holder for her home so I designed and printed this for her. I've made it so it's configurable.
The text that you see in the photos is what is in the STL.
What can be configured?
- Height - You may want bigger or smaller!
- Width - current is for what I think of when I hear "koozie"
- Depth - see above
- One side print or both
- You can also download the source code and change up anything about it
Details of this print
- 3D Printer: FlashForge Adventurer 4
- Filament: 3D Printlife Recycled PLA, color: Night
- Supports: Yes
- Nozzle temp: 220c
- Print bed temp: 55c
- Raft: No
- Ironing: Yes - This may be specific to the FlashForge slicer but it puts a smoother finish on the piece
- Total print time: ~57 hours
Where to get it
CircuitPython Helpers Project
Maybe It's Just Me
As I work on different projects I find myself implementing similar things across projects. This has led to a lot of copy/paste work. Which in turn leads to having to update multiple projects when I find an issue or improvement.
So I decided to start a helpers project. It is essentially a set of wrapper classes that I can use across projects.
What's In The Big Pink Box?
I've just started to build this project and have started with the ones that were in use with my current projects. I plan to add more as I move to other projects.
- Provides a time singleton that supports RTC if desired
- Currently does not support using SPI and Network to get the time (maybe in a later release)
- Provides a logging singleton that supports adding/removing different handlers and accessing files on your SD card
- rotating log files is currently incomplete
- Provides an MQTT singleton that uses SSL by default
- Supports publishing independently or via the MQTTHandler in adafruit_logging
I have done my best to keep all the helpers independent. I didn't want to force anyone to use local_logger just to use the time_lord wrapper.
The responsibility use the helpers together falls to the program.
How Does it Work?
I clone this project into the project in which I want to use the wrappers. From there I just copy the wrappers I'm using to my microcontroller.
Example code - implementing time_lord.py without using a real-time clock:
pool = socketpool.SocketPool(wifi.radio)
my_time = time_lord.configure_time(pool)
Example code - implementing local_logger with time_lord and a real-time clock:
pool = socketpool.SocketPool(wifi.radio)
rtc = RTC() # using a QTPY ESP32 Pico
my_time = time_lord.configure_time(pool, rtc)
my_log = local_logger.getLocalLogger(use_time=True)
Example code - implementing local_mqtt with local_logger without time_lord:
my_log = local_logger.getLocalLogger()
my_mqtt = local_mqtt.getMQTT(use_logger=True)
Where To Get the Project
You can find the project on Github
Please feel free to contribute!
Home Security System (WIP)
Prologue: Can the System be Saved
A couple of months ago, our aging home security system failed to operate after a brief power outage. In its defense, the system is an Acron Corp AV-3000UL from 1986.
After running some tests we determined all the sensors were still functioning as was the siren board; a GE Moose MPI-11.
Armed with this information I set out to rebuild the system using CircuitPython and a Feather ESP32.
Here begins our story.
Chapter One: Transplant
Simple Audio Book Reader
Enjoy audio books without having to be connected to the internet or use a complex application. This book reader is designed for anyone who wants an easy way to listen to their audio books. Load up your SD card with as many books as it can handle, pop it into the player and you're ready to go. Audio book reader supports wav file playback and automatically moves from chapter to chapter, book to book.
You will also need headers for your Feather boards, 22 AWG wire for soldering connections, a keycap, M2.5 screw set with standoffs, and a micro SD card
Groups to get your gears turning