Electronics

Electronics

I rekindled an old passion of mine from when I was a teenager. I started working with digital electronics again. This is where I share those projects.
Jan
30
3D Printer Z-Axis Woes

3D Printer Z-Axis Woes

In a previous post, I discussed my new 3D printer and I briefly mentioned that I'm having z-axis banding issues.
1 min read
Jan
30
My first 3D printer - the Geeetech i3 Pro B (Prusa Clone)

My first 3D printer - the Geeetech i3 Pro B (Prusa Clone)

Back in the day... When I was a kid (back in the 80's), I used to come home from school
8 min read
Dec
27
FPGA for Fun #1 (Part 2) - Driving the MAX 7219 LED Display Module

FPGA for Fun #1 (Part 2) - Driving the MAX 7219 LED Display Module

In a previous post, I covered the wiring diagrams, finite state machines, and LED segment encoding for the MAX7219 display
8 min read
Dec
26
FPGA for Fun #1 (Part 1) - Driving the MAX 7219 LED Display Module

FPGA for Fun #1 (Part 1) - Driving the MAX 7219 LED Display Module

I recently ordered a few LED display modules based on the MAX7219 chip. When they arrived, I immediately began putting
7 min read
Nov
25
Driving the Max 7219 7-Segment Display Module from ASP.NET Core on the Raspberry Pi

Driving the Max 7219 7-Segment Display Module from ASP.NET Core on the Raspberry Pi

In a previous blog post, I discussed how to create a dotnet core 2.0 WebApi application to run on
4 min read
Nov
24
Is the feedback loop the key to a learning computer?

Is the feedback loop the key to a learning computer?

When I was in my early 20's, I setup my Korg Poly-Six synthesizer so that the audio output fed into
1 min read
Nov
19
The Hand-MIDI Interface Project - Adafruit Feather 32u4 with Magnetometer

The Hand-MIDI Interface Project - Adafruit Feather 32u4 with Magnetometer

A few months ago, I had an idea to create a new musical instrument that mounted on a glove. I
12 min read
Nov
18
Armchair Engineering - Ignorance is bliss

Armchair Engineering - Ignorance is bliss

I'm totally into my FPGA. Embedded Micro is supposed to be announcing a new FPGA based on the new Artix
4 min read
Nov
16
Emulating a Lunetta circuit with an FPGA is a flawed idea

Emulating a Lunetta circuit with an FPGA is a flawed idea

Last night, I decided to explore an idea that I have been formulating over the past several months, but haven't
2 min read
Jul
15
Strange VGA Effects on an FPGA

Strange VGA Effects on an FPGA

When I assembled my VGA implementation on my Mojo FPGA, I did so with only a single wire for each
4 min read