Designing and fabricating a giant 7-segment display with Fritzing and JLCPCB.com
This is the hardware part of my odyssey to design and build a large 4-digit, 7-segment display, running on an Arduino Nano. It's a great case-study »
Even a complete novice can manufacture a professional PCB for very little money
This post explains how I ended up manufacturing a cute little binary counter PCB through jlcpcb.com. To make it clear from the start - my »
Track Network Connections - Installing Fing on a Raspberry Pi
What is Fing? Most users of Raspberry Pi have needed to find its IP address on their local network. A quick goggle at Google, and we »
Outdoor apparatus to log data straight to Google Sheets from a BME280 Temp/Humidity/Pressure sensor
About a year ago I posted a blog describing how to log temperature straight to google sheets from a DS18B20 temperature sensor. New Version This blog »
How to control a device with a Kronaby smart watch
Geek that I am, until now I've avoided smart watches. The square-faced Apple Watch never appealed to me and the Android devices look too big, clunky, »
How to make a smart switch for less than $10 that works with Google Home (and other smart assistants)
Several acquaintances have asked for instructions to build a switch that can be operated from a phone app, and/or virtual assistant (Google Home, Alexa, etc) »
Measuring Speed of Rotation with an Arduino, a LED, and an LDR (Light Dependent Resistor)
A couple of days ago I watched a YouTube video where a guy pointed a device at a spinning disk. The disk's rotation speed was displayed »
A Cheap 3D Printer Brings an Entire Workshop to the Amateur Maker
This is going to be an unusual post for this site as it includes no electronics. Today I did something that astonished me. So much so, »
Make a $6 Tiny Portable Weather Station that Transmits Live Data Wherever You Are
Ask your iPhone for weather conditions and it'll display data from a sensor somewhere nearby - often at the local airport - which might be miles »
Build a Remote-Controlled Dot Matrix Message Board in 10 Minutes With Just Two Inexpensive Components
First off - I take no credit at all for this project. All praise goes to the code writer David Bird. His code is here. I »