1. Concept As a practical application of my PERSEUS-9 computer for astronomical observation, I decided to create a hardware and software system to display the celestial coordinate system of an equatorial mount. This computer is not suited to perform...
In practice, we very often need to measure low resistances. Measuring low-value resistances, especially those less than 1 ohm, is nearly impossible with a standard multimeter. On the other hand, an commercial milliohmmeter instrument is...
A 6-ch 230V mains underfloor heater valve controller with 6 mains inputs, based on an ESP32S3. - 6 AC inputs for reading the wall thermostates as fallback (no WiFi/ HomeAssistand dies)- 6 AC outputs using Optotriacs (max. 1,2A / channel)- UART & I²C...
CONTEXT For a while now, I haven't been able to create a project outside of college. Due to the December break that had just passed, I was able to think of a weekend project (which actually took me three weekends due to several reasons) when I first...
Adding project details, etc. over time as I reverse engineer my own project! Here are some specs of this machine: Customized Desktop / Workspace environment to honour the Z88 UIBuilt-in Application Suite to provide modern alternatives to the Z88...
The delta calibration guide for klipper recommends a 0.025 mm consistency or better for automated probing. Testing of this probe location bias on my FLSUN QQ-S Pro with the stock magnetically attached probe showed the bias was at least an order...
Supplying power.One of the trickiest parts was finding a small 5V WW/CW LED controller. Most were 12-24V and I did not want to ruin a 200 dollar lamp. Any LED controller should work, but make sure that you are using 5V, and that the controller supports...
Idea The project is meant to create yet another 'digital clock made of analog clocks', but different. So these are the main requirements for this design: Use cheap and easily available componentsSimple setup with as little parts as possibleUse overlapping...
Processor This is a 4GB Raspberry Pi 4 Model B. Initially, I used an SD card for storage but have now upgraded to an Integral 120GB USB connected SSD. This really improves the startup time for applications but has an impact on battery life as outlined...
Mario Kart Wii is a great game, but the controls are awkward. So, I built an alternative controller to play the game with a D-pad. How It Works A Lego base with a rotating platform was built. The Wiimote sits on the rotating platform and is turned by...
It’s been very long, I am making circuits on PCB and breadboard. But while testing the circuits on breadboard the main problem is to make the connections and supply it with a logic power. Digital circuits can be easily made but on the other hand breadboard...
IdeaSeeking for an alternative to the ibutton logger for a research project, a sensor probe and a small LiPo battery were hooked up to the XIAO ESP32C3, creating a simple environmental data collection device. This solution works and is cheap, but is...
## What is it?Project RE-birth 2nd is the spiritual continuation of [Project RE-birth](https://web.archive.org/web/20210307031049/ym2203.com) In 2021, for unknown reasons, the Japanese closed the ym2203.com website, deleted all public...
Step One: Print the Enclosure I did 4 outer shells and 20% infill to help ensure the enclosure would not be prone to bending over time. Step Two: Set Your Servo to Neutral Plug in your servo to the Arduino Uno and upload the Servo Neutral sketch. This...
Part list from AliExpress, BestBuy, Amazon, and Newegg (prices as of Feb 2024): Case ZS-A4S ITX case all machined aluminum SFF case from Superbuy 6.2L Ultra Compact Design L:276mm x W:114mm x H:197mm Fits full size GPU Up to 272 x 130 x 42mm....