Lucky Resistor
Menu
  • Home
  • Learn
    • Learn C++
    • Product Photography for Electronics
      • Required Equipment and Software
    • Soldering for Show
  • Projects
  • Libraries
  • Applications
  • Shop
  • About
    • About Me
    • Contact
    • Subscribe
  •  
Menu

Author: Lucky Resistor

Logic Gates Puzzle 1

Posted on 2021-04-292022-03-14 by Lucky Resistor

What kind of logic circuit do you see here? This logic circuit was optimised for symmetry and art. Can you see which function is implemented in this circuit? You find more about logic gates and how they work on this Wikipedia page. Check the hints below, if you get stuck. Additional Challenges The logic circuit…

Read more

Bottle Opener for Elderly People or with Disabilities

Posted on 2021-04-25 by Lucky Resistor

Older people often have troubles opening plastic bottles. Also, people with gout or other disabilities lack the required strength to turn the small caps independently. The reason is the small diameter of the caps, which requires a strong grip with just two fingers. There exist a variety of helper tools, assisting this task by increasing…

Read more

Filtered RPM Measurement Using PIO

Posted on 2021-04-172021-04-18 by Lucky Resistor

The Raspberry Pi RP2040 chip is a remarkable microcontroller. The programmable IO block (PIO) is only one of many great features of this chip. In this post, I show you a method of how to utilise PIO, to capture the speed of an attached PC fan with included software filter. Most fans have a feedback…

Read more

Split Storage Boxes Update

Posted on 2021-04-10 by Lucky Resistor

I got many requests to add split storage boxes to my system. Reasons were to print huge boxes and printing boxes on small printer beds. In the past few days, I released an update to my storage boxes system, introducing the first split boxes. If you bought the storage boxes set from my shop, you…

Read more

How to Print the Turntable Platform

Posted on 2021-04-05 by Lucky Resistor

When I wrote part 3 of the pet feeder series, I did not expect the light transmission issues of this part. Now, I have two solutions with new revisions of the part. Solution 1: Epoxy Filled Slots This is the superior solution with the best results, but it requires you to fill four tiny slots…

Read more

Comparing Five Turntable Platform Revisions

Posted on 2021-04-05 by Lucky Resistor

To solve the problem with light inference, I tested five different revisions of the turntable platform. For each revision, I recorded the sensor values and compared them to find the best solution. Visual Comparison Revision A is the original with the light inference problem. In the text, I describe only the differences to this original…

Read more

Let’s Print a Cat/Pet Feeding Device (Part 7)

Posted on 2021-04-032021-10-25 by Lucky Resistor

The seventh part of this series is all about the sensor board. It hosts the position sensor and four fill sensors. Speaking of sensors sounds complex, but these are just pairs of IR-LEDs and phototransistors. All design files for the board are in the GitHub repository and if you missed one of the previous parts,…

Read more

Adding a Light Barrier using Epoxy

Posted on 2021-04-02 by Lucky Resistor

As you read in my last post about the pet-feeding device project, there was an issue with the fill sensors. The lines from the 3d-print transferred the light directly to the sensor and made a useful measurement impossible. One of the solution to this problem is a small gap between the LED and the sensor….

Read more

Why Supporting me on Patreon?

Posted on 2021-04-022021-04-02 by Lucky Resistor

First, I’d like to thank you very much for reading this, πŸ˜„ because it means you are already a great supporter of my work. On my blog, you saw beautiful photos of electronic boards, got detailed instructions on how to build plant watering sensors, fan controllers or a pet feeder. Also, you get access to…

Read more

Unexpected Fill Sensor Problems

Posted on 2021-03-312021-03-31 by Lucky Resistor

While testing the sensor panel, I ran into unexpected problems, requiring a small redesign. First, let me explain the simple working principle of the fill sensor circuit and what I tested so far. The Circuit The circuit for the fill sensors is straight forward. There are four input lines and one analogue output line. If…

Read more
  • Previous
  • 1
  • 2
  • 3
  • 4
  • 5
  • …
  • 19
  • Next

Search this Site

Top Posts & Pages

  • Storage Boxes System for 3D Print
  • Accessing the SD Card (2)
  • Build a 3D Printer Enclosure
  • Plastic Cup Meltdown - Working with Epoxy
  • How and Why to use Namespaces
  • Circle Pattern Generator
  • Use Enum with More Class!
  • Real Time Counter and Integer Overflow
  • Projects
  • Units of Measurements for Safe C++ Variables

Subscribe

Become a Patron!

Follow on Twitter

Follow @LuckyResistor

Recent Posts

  • How to Create a Large 3D Printed Artwork

  • Huge Storage Boxes Update

  • Round Corner Template Set for Woodworking

  • Adafruit PowerBoost 1000C Enclosure (LR2165)

  • Storage Boxes System Survey

  • New Storage Boxes

  • Build and Heat Treatment of a Carbohydrate Source

  • Logic Gates Puzzle 100

Categories

  • Build (6)
  • Common (44)
  • Fail (1)
  • Fun (6)
  • How and Why (11)
  • Improve your Code (17)
  • Learn (22)
  • Projects (89)
  • Puzzle (4)
  • Recommendations (5)
  • Request for Comments (1)
  • Review (2)
  • Software (8)

Social

  • View @LuckyResistor’s profile on Twitter
  • View UCxZpbya5cvokHqq5PXdqTmw’s profile on YouTube

Top Posts & Pages

  • Storage Boxes System for 3D Print
  • Accessing the SD Card (2)
  • Build a 3D Printer Enclosure
  • Plastic Cup Meltdown - Working with Epoxy
  • How and Why to use Namespaces
  • Circle Pattern Generator
  • Use Enum with More Class!
  • Real Time Counter and Integer Overflow
  • Projects
  • Units of Measurements for Safe C++ Variables
Copyright (c)2022 by Lucky Resistor. All rights reserved.
Lucky Resistor
Privacy Policy / Proudly powered by WordPress Theme: FlatMagazinews.
 

Loading Comments...