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hrushal

@hrushal

Joined June 2nd, 2026

  • 16Devlogs
  • 3Projects
  • 3Ships
  • 35Votes
Ship Pending review

12v common anode led strip controller

This uses NO MICROCONTROLLER NO CODE PURE HARDWARE :)

this was my first time doing something purely hardware i learnt a lot and how unforgiving and hard it is to debug
soldering and inhaling the fumes has def reduced my life by 2+ years w the magic smoke from the one 555 that blew up in my face

the problem i was solving was there was no chip/controller that i could custom program for anything i want without involving a microcontroller. i just wanted to control the intensity of each color independently

i learnt about breadboards having capacitance and for the first time i did my own wiring and didnt use jumpers not the prettiest job but it looks better than 400 jumpers and i had to redneck my own 12v adapter to make it w jumpers and i may have burnt some led strips and wasted enough solder getting the temps right on my pinecil [FROM HACKCLUB :) ]

video of working is on the github page had a lot of crashouts and lost enough sleep over debugging this i hope someone else finds this useful too

  • 6 devlogs
  • 11h build
Video of Project → See source code →
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1h 22m logged

WE DID IT

all it took was two broken pots atleast 30cm of solder in my lungs and enough crashouts and questioning myself and my skills
This time i turned on my last itr of the circuit and then started probing TURNS OUT pin 7 was BLOWN thats why nothing worked and i only got 6.7V on output and 3.3 v 100k resistor directly this time i used another type of potentiometer (the og) and then got one more 555 and used a more breadboard friendly wiring diagram

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Ship

Starcalc
YES THIS IS ANOTHER STARDEW CALCULATOR
The problem i wanted to solve w this was making important information thats slighly harder to find on the wiki and requires a lot of clicks like gold/day for each crop, which monster drops what and how to make some artisanal goods be shown upfront
so instead of just going down rabbit holes of reddit and wiki i could just open the website and check what things i can do w a specific item and which equipment to use
The website has 4 core functions rn which are

  • Crops
  • Monsters
  • Artisanal goods
  • Animals

The information is laid in simple to read cards with a image and clear description and the important numbers are highlighted and to avoid clutter produce etc is grouped under a dropdown so you arent bombarded with information you dont need

I had a lot of trouble w finalizing the design AND WORST OF ALL TSPARTICLES and then making card components for every page cuz the data is diff for everything and i decided individual components would speed it up

Try project → See source code →
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3h 43m 9s logged

WE ARE BACK W IT AND WE FINSIHED THE PROJECT
ported the card component to every single sub page and made sure it works
shifted sm styles into global.css
removed the search route and slug to make it static render able also cuz i didnt find a use for it l8r
DEPOLYED ON VERCEL https://star-xi-seven.vercel.app/
added back to home button
and mobile compatibility

THANK YOU EVERYONE

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3h 51m 43s logged

New homepage and then made a card component for showing the animals (for now) Learnt about how logic in svelte is done w {#} and {/} and then also components and nested objects were pmo

i have to make the cards pretty and then if conditionals on prices and dropdown for the produce and tags and then layout too so thanks for reading :head-shark:

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4h 7m logged

555 JUST WONT WORK

ive spent genunely tm time on this and the this time i even soldered leads to the led strip ( first time flawless btw ) it works on the 12v supply the led and the mosfet alone but the 555 just wont work even aft i check every wire w continuity and aft trying 5 diff schematics and ways to do pwm ts just absurd 😭

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3h 30m logged

NEW NOT SO PLAIN BACKDROP
tldr: basically i gave up
so i wanted the plans and the wine bottle to have this cute colored circles to ‘splash’ out when you click it But then i look for svelte particle libraries and its only tsparticles which is FINE BUT HOLY DEBUGGING so i went on a side quest to learn it DECENTLY and thats how we have a background

ik its not fancy or anything or a lot of added code but the debugging uh let not :prayer:

also shifted to bun for everything and had some issues w vite asw
also bun has great support for this stuff crazy

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1h 24m logged

NEW CASE

Whimsyboard got audited and it was pointed out that the case couldnt hold the pcb in but i really love having the copper being exposed w the silkscreens so the Grid was a NO

what i did instead was Extruded all interior edges by 2mm and curved them so the pcb CANNOT fall out and now isnt just dependent on the cable to stay in place

Also added a lot of curves cuz i learnt and figured out some cad :tongue-out:

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2h 34m 29s logged

Redeigned the home page cuz it looked really boring and life less and nothing like stardew

spent an hr making the ui and then aft clg started has a urge to redesign the ui so um here we are :sob-pray: (feedback and logo help appreciated)

Tried three diff styles to see which one i like some of them were:

  1. Notebook flipping ish
  2. Purple heatmap ahh
  3. Cool png animation stuff ( gave up before trying bc couldnt find assets)

THE title above is currently in the works of making the A a Star cuz hehe stardew starcalc :wiltedrose:

The Pngs will hopefully have a transition animation where the coffee plant sheds the berries and it swoops to the crops page animals has egg particles artisanal has a foam jet or smth and the slime for moster loses his color and becomes the resource

now ill have to ditch all of my programming of the previous ui and start all over again but lowk worth it :blobby-stuck_out_tongue:

i need it to be pretty cuz i said so.

added both old and new ui for yall to rate and tell pls help me i suck at ui :duck-bottom:

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3h 6m 6s logged

Season and Professions

  1. Mocked up in Figma
  • purple color scheme
  • Handmade font/icons

2.Chose svelte for no reason (other than to learn)
3. Made Gemni write a data.json to Prototype w (eventually will nosql/sqllite it)
4. Season Select using radios that look like buttons w functioning hover and select colors ( took alot of time and help NO AI THO ALL DOCS)
5. Profession Select drafted but need to Read and add the perks to the data/process in js

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1h 32m logged

Hi guys back aft getting more components :o7:

New color coded wires and new schematic from the book ‘Practical Electronics for inventors’ I blew up a 555 off camera while working :sob-ios-67:
Also circuit still doesnt work ive tried making my own taking it frm yt and from a book now idk why its not working gonna check wire continuity tmr and make sure im cutting the wires long enough to make contact
Mosfet is still a mystery to me but ill figure it out :)

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Ship Changes requested

WhimsyBoard is a 4*3 Macropad with a Rotary encoder and a oled screen mapped for the optimal Music control, programming and automation macros in mind. The board allows you to have two Dynamic macros to record and play. The board also has the 12th key (bottom right) set to move layer for more customization without ruining the original layout

The name comes from people calling my whimsical and the logo is just a svg from svgrepo that reminds me of my blahaj plush
The board has some Sabrina Carpenter and Tate McRae lyrics sprinked in since they are the artists i listed to most while making this

The hardest part for me was EVERYTHING except the schematics

  • making the schematic was almost peaceful except finding footprints and importing them

  • Routing the pcb is an art IT took my atleast 5 revision on lapse and outside of it to Get a decent routing and i had to remap the pins enough times to make everything look presentable

  • CAD was genuine hell since it was my first time and i didnt know much abt the fusion eventually shifted to onshape aft learning basics from trying and failing in fusion Decided to make an open case since its alr very packed and i want the Copper Text to shine

Video of Project → See source code →
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7h 21m 43s logged

Whimsy board IS FINALLY COMPLETE
Firmware was honestly hell with the build times and sparse (im also not that smart) and sometimes confusing QMK documentation
CAD WAS HELLLL Took so long to even understand how to even start but eventually moved to onshape which was MUCH easier
Schematic was the best and the most delulu stage imagining your board and how simple it is to make smth like this and then you find out why they cost so much aft
PCB routing is a diff hell i have a new sense of appreciation for every single pcb that exists so simply w no vias

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8h 44m 39s logged

Done w the physical board and design added A shark cuz my ikea plush whimsy cuz ppl call me that and then some song lyrics which i love as a bonus 😭

currently is a 3*4 matrix of switches w a rotary encoder and a oled display
Top section of the encoder and two keys are gonna be reserved for playing music

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