Video

This circuit would not work properly when you press more than one button. Detecting simultaneous button press require multiplexing.

No, I have never done a commissions. If you're interested, please contact me via email at hwiguna@gmail.com and tell me what you have in mind.

Thank you!

Thank you for the comment! Yes, you could just add more PCF8574s. Alternatively you could use a variation of that chip that offers 16 instead of 8. Use one or two of those, or if you don't mind different code for some buttons, you could use arduino regular digitalRead pins and the IO expander. Kinda messy, but doable.

Of course. github.com/hwiguna/HariFun_180_Word_Jumble/tree/master/_07_Word_Jumble_NoDuplicate

I'm going to assume your phone miscorrected you and typed "iot" instead of "word". To add words, just open wordlist.h and create string_101 etc the same way all the other strings are entered. If you really meant "iot", you're going to have to explain what you meant. github.com/hwiguna/HariFun_180_Word_Jumble/tree/master/_07_Word_Jumble_NoDuplicate

All 12 acrylic faces are covered with semi transparent mirror films.

@@HariWiguna oh. I wasn't expecting that answer. 👍

Thanks. Yes, they are connected in parallel. Two lines for plus and minus. You are correct, those two are connected in parallel. However the third line is actually in series. On each LED there is small microcontroller that has input and output pins in addition to the power. Output from the Arduino is connected to the input the first led, output of the first led is connected to the input of the second led, output of that is connected to the input of third led, etc. In the Arduino, there is an array representing each of the leds. The code sets the color of each led in that array, then the info is sent in series by the aptly named FastLED library. Somehow first led ingest the info for itself, then pass the remaining info the the second led, which ingest its info and pass the remaining bits to the subsequent leds. Pretty amazing really. More info of the build here: czcams.com/video/YRvfHhS31sw/video.html

@@HariWiguna Thanks for the extensive answer! I was aware that the data line could not be in parallel but needed to be in series. I miss where you cut the soldered data lines. Maybe this point could be at the backside of the pcb's so you could cut when the dodecahedron is completely build? Another question: Did you install the LEDs and capacitors yourself to save some money or would you order the strips with them installed the next time? And by the way: I like watching the whole video and seeing how you solved some problems. Making these jigs was also awesome. This was the first time I saw the dodecahedron build with pcb's.

Thanks. Unfortunately, the analogwrite function does not actually outputs a variable voltage. Despite having the word "analog" in the command, it actually pulses 5V at varying speed. Also, as far as I know, most commercial keyboards do not use this analog method but instead uses a digital matrix (more pins, but more accurate). www.arduino.cc/reference/en/language/functions/analog-io/analogwrite/

Hi! Yes, I'm doing fine. Thanks for asking. I've been making things, just not cool enough for a video. Have you made another attempt at an infinity dodecahedron?

@@HariWiguna Good to see you're still alive! In these times of covid it can be hard to tell when someone drops off the face of the internet for a year, never know what happened! I started work in printing a frame jig since I decided I wanted it to be bigger with aluminum angle bracket as the frame and then ordered a bulk order of LED strips but a porch pirate got to them before I did so I'm trying to decide if I want to invest more effort and money into the project or just turn it into an LED-less piece of decor and sell it on Marketplace or something to recoup the lost money

Hi Corey, Sadly, I have no plans on adapting this to a Raspberry Pi or Pi Zero. However, If you could find the library to support the display, porting should be fairly straightforward.

The song is called "Funky Element" from Bensound.com www.bensound.com/royalty-free-music?tag[]=funky&tag[]=element&category=Mood&sort=relevance

1 ottobre 2022

1. Oktober 2022

1 октября 2022 г.

1 жовтня 2022 р.

1. lokakuuta 2022

I pre-programmed it to do certain movements in sequence. The original designer had an article where he used bluetooth. www.instructables.com/DIY-Spider-Robot-PART-II-Remote-control/

Thanks. I DID make a video about how I made it 🙂 Enjoy... czcams.com/video/YRvfHhS31sw/video.html

Part names: Arduino Uno, 10K Ohm Linear Potentiometer, Momentary Push Button, 2 line by 16 character I2C LCD module., Breadboard and jumper wires. Have fun!

@@HariWiguna What bout one dimentional mouse? we will be needing that as well, right?