Wii Balance Board Smart Scale ( w/ ESP32 )

People have used Wii Balance Boards before as scales.  The projects I saw were typically paired with a phone or a Raspberry Pi via bluetooth and the data was handled by those devices.  I didn't want to go that route but instead wanted to replace the original circuit board from Nintendo with one I designed myself that has an ESP32 on it which...

Nixie Clock #3

This is my 3rd Nixie clock.  I obtained some Burroughs B-5870ST tubes and wanted to make a clock with them.  These are awesome quality tubes made in England.  The mesh is super fine and the numbers are very well formed.  They are nice and bright and supposedly ultra long life. I also wanted to incorporate HV5530 chips for driving the tubes. ...

Wall Pluggable Nextion Screen with WiFi

After the last screen experiment I wanted to try a Nextion screen.  These screens are somewhat interesting as you load the GUI onto the screen module itself and interact with the GUI objects programatically from your microcontroller device (in my case an ESP8266).

I also wanted to make it a bit easier to view and use so made the 3D printed...

Wall Pluggable LCD Touch Screen with WiFi

This is primarily just an experiment with a LCD Touch screen that can be plugged directly into a wall socket.  This is using a cheapo touch screen with the ILI9341 display driver and XPT2046 touch driver.

Future iterations will involve mounting directly into a wall, various size displays as well as different display types.

I made a board to...

RFID Door Access V2.0

I made this RFID door system over a year ago and it has performed flawlessly for over a year and still going.  It was the first time I made one of those things so now it's time to improve it a bit.  The improvements are mostly to do with the PCB I made to mount the Pi 3 on and the dual relay module and nice pluggable terminal blocks.

The...

Cross compile Qt for Raspberry Pi (OpenGL)

I wanted to do some touch screen GUI projects based on Raspberry Pi 3 and various touch screens with an aim towards making more "stand alone" interfaces to my automation projects.  I wanted to be able to use QML based applications so that required OpenGL support.

This is more for my own reference so I can reproduce a working environment.  I...

M2M : GSM/GPRS to WiFi Bridge

I wanted to expand some ideas about access control so the next step was to incorporate some devices that could be called with a cellphone to initiate some arbitrary action.  The unit thus needed some GSM and Wifi capability which was provided by the A6 module and ESP8266 both of which are from Ai Thinker.

I bought a couple different...

Nixie Clock

Over the years my girlfriend has handmade me some awesome and wonderful birthday cards.  Wanting to make a Nixie Clock and also wanting to handmake her something that (I think) is nice converges nicely in this project!

Hopefully it looks good and is put to good use! ...

WiFi Enabled Button

Some time ago I deployed a RFID access system that over time needed a way to arbitrarily open the door from within the office.  The way that made most sense to me to handle that was to make a button attached to an ESP8266 module and make a secure REST call to the server handling the door access thus opening the door.

The schematic is pretty...

Nixies Part 1

For some time I've been meaning to play with nixie tubes.  Recently I decided to do it and went out and bought a bunch of stuff to get going with it.

There's a LOT of people that have used these in various projects (mostly clocks it seems) so there's a vast amount of information out there online.

This is pretty lengthy due to me inserting a...