3D Printing

WIoT-2 Weather Station – Nextion TFT with ESP8266/ESP32

This is a continuation from my first iteration of WIoT weather station.  What is WIoT-2?  I use it as a cloud-connected (IoT) info center of sorts mounted near our front door.  It is a culmination of information my wife or I often look for either on our way out of the house, or when we come home.  It displays current/forecast weather from , weather data from outside the house (from this), date, time, our local...
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3D Printing

3D Printer Raspberry Pi stand & case for OctoPrint Rig

Now that I’m done adding a TFT to my OctoPrint Pi rig, next step was to make a cradle mount for the LulzBot Mini.  I also integrated a power switch into the build.   The cradle is a remix from the Adafruit guide, while the shell are direct prints.  STL files for the remixed cradle are here.  The power switch holder is printed separately then glued using Goop (best glue ever!).            
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3D Printing

How To: TFT LCD with TouchUI on Raspberry Pi OctoPi Rig

I recently ventured into adding a ″ TFT to my LulzBot Mini.  I already have OctoPrint running via all my mobile devices, but there are times (usually during filament failure events) I need to directly control the printer (heat the filament, move axis motors etc).  After 3 painful days of messing around withe different tutorials, I found failure.  Well, I finally figured it out and it works dammit!  I haven’t found a single source that...
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3D Printing

USB Dial

This is another one of those “did it because I can” projects.  It’s a USB dial that uses a Teensy Arduino unit at it’s core and allows me to emulate my mouse.  I use TinkerCAD avidly to design my 3D printed models.   I wanted to have both this and my mouse at the same time.  The mouse would be used for some activities ( object selection/rotation/editing) while the dial would fill in to perform...
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LEGO

Lepin Baja Trophy Truck (23013) Build / Lepin vs LEGO Comparison

Let’s start by clearing the air.  I’m fully aware of what Lepin is up to.  I’m an AFOL and have been a dedicated LEGO fan (mostly Technic and Minstorms) for over 40 years.  I have spent more $ on LEGO than I want to know.  Am I a purist?  Somewhat.  I didn’t really pay much attention to knock-off LEGO brands as I just assumed they were crap, so I ignored all the media about...
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3D Printing

3D Printed RC Hex to LEGO Hub Adapter

After building BluCrawler, I wanted to see what other possibilities there were with builds using RC crawler tires.  LEGO is not there yet with similar tires (closest are the Claas Xerion tires – but they are not crawler tires).  Anyway, it’s challenging to mate a LEGO hub to an RC tire.  There are aftermarket adapters out there, but they are expensive, so I decided to design and print my own. You can download the STL file here. ...
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Electronics

HiTech HS-225BB LEGO Servo Mate

I’m looking at alternate steering options for BluCrawler as the LEGO PF servo motor doesn’t cut it, and I’m not satisfied with other LEGO-based approaches I’ve tried.  So, I’m headed into unconventional territory that may cause my AFOL brethren to shiver.   I’m looking at integrating a HiTech HS-225BB Servo to manage steering.  If it works, I’ll add one to the front and rear to give me the throw I need for a tight turning radius as...
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Arduino

BTBox – LEGO Power Functions Bluetooth Controller

I’ve been on a bit of a LEGO Technic/Mindstorms hiatus for a while – ok, it’s been 7 years!   I have an excuse… I’ve been spending much of my hobby time making my own DIY projects / IoT stuff all while mastering Arduino.   That changed a few weeks back when I came across THIS.  I’ve been thinking of getting an RC crawler for some time, but it struck me that I have 95%...
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Arduino

BluCrawler – LEGO Rock Crawler with BTBox Bluetooth Controller

First I want to give a shout-out (and credit) to PunkTacoNYC as BluCrawler is based off his Chilli Crawler – this is his creation. I’m  just taking it down another path.     You can also find published instructions if you want to build it yourself.  For some time, I wanted to get an RC crawler, but they can be $$$.  When I came across PunkTacoNYC’s Chilli Crawler, that was I figured I had...
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Electronics

WiFi Bot Control – Using NodeMCU (ESP8266)

WiFi Bot Control was built back before the ESP8266 came out, so WiFi options were limited and the ability to directly stream data over WiFi to the same MCU that controls a robot was next to impossible.  That changed with the intro of the ESP8266.  I’m going to show you how to streamline WiFi Bot Control and remove the need for a separate webserver.  We’ll also look at options to streamline the IP camera...
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Arduino

Nextion TFT LCD – Why you need one!

I’ll start this by stating that I don’t work for iTead, and nor am I getting any sort of kickbacks…   I just really like this TFT LCD.  I stumbled upon the Nextion (which is a slick easy-to-use TFT LCD with a HMI editor) when they had their first crowdfunding campaign a year or so ago.   I ignored it as there was not a lot of documentation, and frankly, I really didn’t understand the...
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