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
Using NodeJS and Express, I created a web interface to remotely control the pen drawing robot ‘Line-Us.’ Available from Cool Components. You can watch a video of it functioning here: And my project’s source code is available on GitHub: https://github.com/jonhassall/line-us-web The robot is available to purchase here: https://www.line-us.com/
“A prototype 3D-printed robotic hand that can be made faster and more cheaply than current alternatives is this year’s UK winner of the James Dyson Award.” (BBC News link) This is a fantastic idea, which has so much value to people without limbs. Bionic prosthetics can cost up to £100,000, and £30,000 for a single hand. The 3D-printed … Read More
Today I used an Arduino reprogrammable electronics board and a GSM/GPRS modem to send data to the Internet. This will be useful for the sensors I intend to build. You can see a video of it operating below. One window shows the output from the serial interface as it makes a request to my web … Read More
Atmel Studio now has an extension designed as a simple alternative to the Arduino IDE. The Arduino IDE is relatively simple. It is great to get started with AVR programming, and has some useful examples to get you started, but lacks many of the features that experienced programmers call for like detailed compiler warnings, debugging … Read More
When I was growing up, one of my favourite birthday presents was a Uniden UBC3000XLT radio scanner. I enjoyed finding and listening to various radio transmissions, and I had some success decoding data transmissions and morse code using my PC and Sound Blaster soundcard. I was interested to read about a technique called Software Defined Radio (SDR), … Read More