I created a case for my ESP32 E‑Paper Status Display using Fusion 360, Cura and a 3D printer. It is available to download at Thingiverse.
Using an ESP-32 board with an embedded E‑Paper display, I created a gadget that shows status information from my web server. E‑Paper, also known as E‑Ink, only needs power when being updated, and uses no power between updates. This means that the gadget can be powered for weeks from a rechargeable battery. The purpose of … Read More
For a long time I have wanted to build a remote controlled robot car capable of being controlled via the Internet, at long ranges using 4G/LTE cellular connectivity. So I did. I used a Raspberry Pi 3B+, an Adafruit DC and Stepper Motor Hat, and a Logitech C930e USB UVC webcam. The robot is capable … Read More
Here are a few important ways to speed up page loading times, together with the improved recorded times for comparison on a typical WordPress web site. While WordPress is hardly an optimized web application, it does benefit from the same speedup methods as most web applications. I used Google Chrome Developer Tools to time network … Read More
The general push to use SSL/HTTPS for every web site is improving security and privacy on the Internet. However, every request a web site makes will need to be secure, or browsers can remove the ‘Secure’ indicator, show a warning symbol, and sometimes pop up errors. You can add a simple header that will tell … Read More
These simple steps can improve your Qualys SSL Report to an A+: Step 1: Getting my initial report (B): You can get a Qualys SSL Report on any site. My rating started as a B with a reasonably good setup: Step 2: Improving Ciphers List SSL v2 is insecure, so it needed to be disabled, and … Read More