Hardware Posts – Hack Club Scrapbook

Posts tagged with :hardware:

Small ship (bigger one coming soon hehe)! At #horizon I built an unnecessarily ~complicated~ hacky project involving Spotify + Neopixels. Basically, the web interface at horizonmusic.vercel.app allows everyone to add music to a Spotify playlist that I play (which means I have ultimate control I guess + yes you can technically still add music) without having to log in (especially if they don't have an account) + automatically filters out explicit songs in the search so nobody adds explicit songs. Waveform with p5.js and Tone.js record surround sound (coming from speakers and other close noise) and transform it into a cool waveform, while a set of LED lights (Neopixels) flash along to the music, utilizing an Adafruit Feather Huzzah to wirelessly communicate with a computer (computer mic -> computer -> computer processing -> send FPS to Adafruit -> flash Neopixels!) through the amazing audio-reactive-led-strip library. The Neopixels we got didn't work fully, but the result was still cool! github.com/jianmin-chen/spotify-collab (and I might be getting working Neopixels for another project!)

update on :winter-hardware-wonderland: macropads! almost fully assembled one — just need to buy screws and standoffs to attach the bottom — and they work!! the 3 rgb leds are individually addressable, and since it’s powered by a pico, the keys and leds are all customizable (here I have circuitpython loaded on the pico, running a rainbow animation) i think these would be fun hackathon prizes so if you want some for your hackathon reply/dm me ig?

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Custom Ampli-Tie Day 2 - Step 2,3 1. Sizing and learning how to tie a tie 2. Placement tests (fewest lights that'll look decent) - 13 LEDs every 3 cm apart was optimal 3. Harvest Flora NeoPixels from an old non-functional project and then spend foreverrrrrr cleaning them (removing the superglued thread) 4. Ordered microphone and ribbon cable

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Custom Ampli-Tie Day 1 - Step 1 Power consumption testing of 16 Neopixels (and the start of my real life engineering notebook, thanks #vrc :/)

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I cleaned my laptop fan today! There was an insane amount of dust in it! Doing so really helped the performance, it's now operating at about 80c under load compared to the old 95c under load, so hopefully it will run cooler, last longer, and most importantly, throttle less. It was a little bit of a dicy repair, considering how some parts of the laptop are breaking apart slowly, and I didn't want to aggravate any damage, but the lack of some screw covers due to failed adhesive made getting to the fan a little easier. I really need to work on my winter hardware project. I haven't done that recently. I also worked on my secret project, and collecting the data and building the UI were two major focuses today. This post isn't quite as long as the other day, but it sure does have have a few images!

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I did a bit today, and I originally wrote this all up, but I accidently posted it in confessions, then proceeded to delete my long write-up. Whoops. That was bad. Starting with my science fair project, I've begun work on generation 2.5 hardware. Why 2.5, you may ask? Well, I designed generation 2 hardware, and it was never produced, and ended up being too big. So, I've began shrinking it, and creating a new PCB. This one uses a faster esp32 module, which should simplify things for me, and more crucially, also contains a USB interface. This should simplify the design some, and although the module is larger, it removes the need for an pesky usb-to-serial converter to solder. I've moved to an vertical mount USB-C connector, which should simply mounting of the board in the case and allow me to increase the board size by several millimeters, all while simplifying the charging process. Speaking of soldering, I've been forced to use smaller components for this revision of the board. I'm moving to 603 resistors (scary, those things are so easy to bump), though to be fair, I solder much smaller chips, and will be soldering much smaller chips anyways for this project. There's a lot of sacrifices that I am making to try to fit this as small as possible, but engineering is a game of calculated sacrifices, not everyone has the unlimited resources or budget for your project (most of the time). I haven't worked on my power app for managing my servers, but I should tomorrow. It's moved along nicely, and I look forward to adding authentication soon. Auth is a bit complicated, and I wish there was an easy way... I did however work on a different personal project, whipped up some figma designs, and hit an API rate limit. It should have reset at this point (1,000/24hr, resets at 7EST), so I think I will work on that and integrating it with StatsD to get me analytics and errors from part of the backend app for collecting data for the project. I like mongo and FastAPI with python, so I'm honestly just looking for a way to tie integration to that. The whole authentication and keeping it secure part is where it gets difficult. And JavaScript web tokens and all that stuff. I'm debating building the front end in react, I like the convivence, but it's probably unnecessary. Maybe I can shrink it down or something, it's a project designed to be integrated into other pages though. I'll figure it out, it's not too big. Not like my react is that good, I've just started learning it a few weeks ago, and I don't know too much yet. I've begun to narrow down my search for a laptop, I'm looking at Lenovo Thinkpad T15's or P15's (or a variant), or a member of the Dell Precision 7xxx family. They are all awfully expensive though, which is unfortunate. There's not many computers that fit my needs (nvme, 15in, not a gaming laptop, not look too ugly, numpad, backlit white keyboard, ethernet port, lots of other ports, decent back or side-output thermals, user repairable, well preforming i7/Ryzen 7 or higher. Tomorrow is a half day, and I plan to work on my power app and my science fair then. Friday I am fortunate enough to get off, so I might build a sprig game then... I have a few ideas, but none are set in stone yet. I'll see how it goes. I should check how many consoles are left, to be honest. I'm a bit angry it appears autodesk stripped eagle from the education pack. I liked eagle, but I should probably learn kicad. Eagle, Fusion, and Autodesk are honestly the only reason I still dual-boot into windows on my laptop... speaking of that, I need to customize my grub screen. I restrung my guitar today as well, I should have done that a while ago (It's been a bit!). For bonus points, I did a partial water change in my fish tank and watered my plants as well. My phone decided to die again, so that's a lot of fun. It just randomly turns off sometimes, and doesn't turn back on for days. I sent it to google; they said there wasn't an issue, but there clearly is. Oh well. I'm facing a productivity and time crisis right now; I have so much projects and things I should be doing, and my grades suck and I really need to study for the SAT. There's so much to do, but I can't seem to do much. I don't know. I'm always lost. Congratulations, you made it all the way through this message! I probably forgot something, but that's probably enough for now. Let's see how many emoji's that scrappy throws up. Probably enough to fill a cargo container. I'm sorry it's this long, this message just doesn't end (It's still not over..) Ohh, I have a secret ship coming hopefully along in the next few weeks! It's top secret! You will need to have to wait to see what it is!

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Back to scrapbook! I kinda just gave up when I lost my streak last time, I've had a lot going on. I'm currently desperately studying for an engineering test on trusses I can't pretend to fully understand, and I've begun redesigning the electronics in my science fair project. Oh, and yesterday I started building myself a website. At least the header of a website. This is an earlier version, I'm running a slightly newer one, and I think I finally figured out mobile, and how I'm going to do that (normal menus look ugly). I hope to work on my hardware project some later this week when I get the time. And maybe a sprig game.

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Winter Hardware Wonderland #hardware-party There were complications in getting the Hack Club Bank to work and parts were slow to ship from overseas - but finally I got all the parts to work and here is the first prototype of the Triton Amphibious Rover! github.com/hackclub/winter/blob/main/thelouisgan.md The RC controlled rover features a LEGO Technic vehicle that I coupled with a motor, and for the water side of things I rigged an underwater motor and 3D printed rudder to a 25KG servo motor. All this is remotely controlled with an RC so that you can take it to explore different terrain and locations! It is also powered by a rechargeable LiPo battery and will be able to operate up to 15 minutes on a full charge in optimal conditions. Will update more photos and videos of it in action soon! Please do give feedback/suggestions as this is my first big scale project and thanks to @MelanieSmith and @belle for the support.

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#hardware-party more components!

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Day 4 of WHW #hardware-party, I have my physics exam tomorrow, so didn't do much. But I'm done with the calibration, Thinking about what to work on tomorrow!

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Day 3 of WHW #hardware-party, Today I soldered the Electronic speed controller (ESC) to the motors, Wasn't able to do anything more tho. It's been quite hard studying magnetism in physics! and I also have my board exam this Monday. See you guys tomorrow!

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I forgot to show the #hardware-party people, but here’s my electronics cupboard The first circuit is a 16 bit flash ADC (the ICs are 741 operational amplifiers being used as comparators); it’s part of my bigger project The second circuit is my friend’s pulse oximeter (I’m wheezing because the CO2 levels were ridiculous (we had been in there with the door closed all day)

Day 2 of WHW #hardware-party So, today I am coding the GPS Module System, I added and altered the code to enable more precise locations for better navigation while flying the drone. Tomorrow I will start working on the hardware! Thanks.

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Day 9 of WHW #hardware-party I just connected all the channel’s form transmitter to receiver and will code the return to land function tomorrow

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Day 1 of WHW #hardware-party I was so busy with exams that I forgot to post! Sorry guys. So, Here I am Coding the altitude calculation system for my team's drone, A tip for others who are facing problems with APM, for example: so I was not getting the correct reading of altitude in APM so I used (True Altitude = Indicated Altitude + (ISA Deviation × 4/1000 × Indicated Altitude) to get the correct reading.

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WHW day +6: after hours struggling with wifi connection, I have succeeded to get on hack club slack and make a post on the scrapbook. Here is what I did during my week without internet: • print time on serial monitor thanks to the RTC library that I've already install (i have also displayed them on my lcd screen but i forgot to take pictures) • read some books about C programming language to code my arduino better (don't have C++ books but it was the best I got without internet 🥲) this week I went finish my holidays to the mountains ... but I forgot to take my arduino 😭 no progress this week sorry if my project take a long time to get finished (I think i'll not be able to continue during school)

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Inspired by Amazon Web Services (AWS) :aws:, Libre Web Services (LWS) :libre-web-services:, also known as "Raspberry Web Services (RWS)" :raspberry-pi-logo:, is a concept built during Hack Club's :hackclub: Winter of Making :wom: 2023 Winter Hardware Wonderland :winter-hardware-wonderland: "10 Days of Making" event is a hackable, scalable, load-balanced, home-hosted, multi-node aarch64 Arm-based :arm: cloud powered by Kubernetes :kubernetes: & Docker :docker:, created by @alialiwa2005 ("Hack Cat" :hacker-cat:), a veteran :scrappy-retro: Hack Club community member :dino-drake-yea: & founder 🧭 of Gaynor McCown Hack Club :gaynormccown:, established in November of 2020 :dinosaur_waving:. Libre Web Services :libre-web-services: on Hack Club Scrapbook :scrappy: | Libre.hackclub.com

Winter Hardware WonderLand Day Final: Now the FM radio transmitter is ready and i am able to Broadcast the audio with my raspberry pi radio.

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It's partly better #hardware-party

#hardware-party 1?/10: today I worked on bringing my 3D printer back online. I have all the axes working correctly now, and I'm working on getting the bltouch and auto-leveling functioning now. Hopefully I can start printing some tomorrow! Ignore the mess of wires... It's not back on the printer yet...

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:winter-hardware-wonderland: day 14: pcbs arrived!!! they look great but I haven't tested them yet...really hope they actually work, but if not, at least they look good :p

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Today is the 1st day of what I call, the DM ( Daily Marios ) Didn't do much because I was out of town ~~~ The 📜 Changelog of wisdom ~~~ 1️⃣ I worked on the Sinerider reddit bot 2️⃣ Experimented with the Commodore 64, fascinating stuff! ~~~ :future_potato: What is tomorrow? ~~~ I want to update my winter hardware wonderland repo and create the pcb. Also experiment more with the C64. ~~~ It is :minecraft: time ~~~ Or is it? I didn't have much time today so I didn't play much :(.

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#hardware-party day 1?/10. I worked on my power board today... I fixed some problems, and I found a lot more. I'll take a more thorough investigation tomorrow.

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Today is the 3rd and final day of what I call Winter Hardware Wonderland Extended Edition :winter-hardware-wonderland: :ultrafastparrot:. ~~~ Project Description ~~~ Want to plant flowers but you don't know where to plant them? Utilise the Plant Location Chooser that helps you decided the place based on the environment ( i.e. Humidity, Temperature) ~~~ The 📜 Changelog of wisdom ~~~ 1️⃣ Soil moisture is working with no crashes! 2️⃣ Soil moisture calibration mode. ~~~ :future_potato: What is tomorrow? ~~~ Need to publish the latest code on the repo and create a pcb design! ~~~ It is :minecraft: time ~~~ I and @Odysseus expanded our kelp empire, ans created our first stores! Furthermore construction on GNHATS, Galaxy Nether Highway and Transport System, has begun! Section I, II are already completed.

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#hardware-party :winter-hardware-wonderland: Day - (10 + 2) Made the circuit to control the led strip and connect the previous circuit to the AC appliance.

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#hardware-party :winter-hardware-wonderland:Day - 11 Design a case for the electronics and printed the lower part.

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#hardware-party whw project update! So did some soldering today

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:winter-hardware-wonderland: #hardware-party Day 11 building a custom USB rubber ducky: I shot the wallpaper image I will put on people's computers using my rubber ducky and assembled and soldered most of them. Huge thanks to @Jaxzog and my other friends who helped set up this set (it took like 4 hours) So close! I just need to finish my informational pamphlet, finalize the mac code, and edit the photo. (I'm in the epoch hoodie w/ the soldering iron (yes, that's a cage nut tool))

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Connected Arduino UNO with Bluetooth module .

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Today is the first day of what I call Winter Hardware Wonderland Extended Edition :winter-hardware-wonderland: :ultrafastparrot:. ~~~ Project Description ~~~ Want to plant flowers but you don't know where to plant them? Utilise the Plant Location Chooser that helps you decided the place based on the environment ( i.e. Humidity, Temperature) ~~~ The 📜 Changelog of wisdom ~~~ 1️⃣ Introduces the final hardware component, the Soil Moisture Sensor 👏 ~~~ :future_potato: What are you going to do tomorrow? ~~~ That's a pretty good question! I plan to finally finished the software! Bluetooth listening sucks. ~~~ Hey what's this? :minecraft: ~~~ Yes that's right! Today was pretty chill I decided to play some Minecraft on the official server ( If you have minecraft do join #minecraft for more details ) featuring the one and only @Odysseus and @DevIos! I at least had an amazing time.

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:winter-hardware-wonderland: Winter Hardware Wonderland -- Day 11 :winter-hardware-wonderland: placed all the components on the keychain + routed the tracks; going to add some more art to the back tomorrow (suggestions welcome !!)

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Whwd day 6 ig #hardware-party :winter-hardware-wonderland: Bed level done Nozzle clogged Changed it again it clogged so again replaced it printing parts already been 8 hours more 17 hours to go 🙃

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day 8/10 finished wiring one part of my project module 1 - boombox internal connections, i am hopeful that i will finish the wiring and soldering tomorrow so that i can focus on working on the main body . hope to upload a video of music that i play using this tommorow

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#hardware-party whw update! Just added SSH features and got some games on

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#hardware-party :winter-hardware-wonderland:Day - 10 Made a circuit board for connecting my home appliances and while cutting the vero-board, I destroyed my phone Tried using an oscilloscope.

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I can't believe it's the end of #hardware-party / Winter Hardware Wonderland aka Day 10 :( :winter-hardware-wonderland: Today I tried to complete everything but due to unexpected bugs I couldn't. There is always tomorrow? ~~~ Basic Project Description ~~~ Plant Location Chooser is a project that helps you choose the right place to plant your flowers. This is calculated via the Humidity, Temperature, etc. After a basic summary let's jump into the changes :ultrafastparrot: ~~~ Changelog ~~ 1️⃣ Uploaded the latest schematics to the repo! 2️⃣ Almost finished coding the app, the bluetooth module is giving me trouble again by not reading the output. So frustrating :angry-dino: 3️⃣ Changed the arduino code to respond in a shorter way, as to not fill up the screen ( Upload pending soon! ) ~~~ Basic Project Timeline ~~~ This might and probably is an inaccurate timeline. Day #1: Schematics day, super fun! Day #2: HM10 day, frustrating! Day #3: App day, really fun! Day #4: BME280 sensor day. Day #5: Flutter x HM10: really frustrating, probably the worst day lol. Day #6: TSL2591 day, a blast. Day #7: Flutter x HM10 Round 2, the same description as day 5. Day #8: New DEV / Check button, definitely a nice day. Day #9: Schematics day v2: a blast! Had an awesome time reworking them and creating a pcb for fun. Day #10: Flutter x HM10 Round 3, day 7 basically. ~~~ Thank you note! ~~~ I want to thank all of the people that took a part in #hardware-party that made this possible! Although I had constant Bluetooth issue, I learned how to incorporate them into my app. This truly has been an amazing experience! ~~~ The Plan of Future :future_potato: ~~~ Finish the project app ( Add the listening functionality) and add the remaining Hardware aka the Soil Moisture. I will also upload photos from few different days as a comparison!

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Day 10 of making #hardware-party #10-days-in-public Audio Spectrum visual analyzer

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Day 10 of #hardware-party :roo-yay: Started working on the frame / physical map portion of the project!! I’m not done yet so I’ll be continuing on the project beyond the 10 days :)

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Day 10 of #hardware-party : Today I worked on streaming the video from the raspberry pi to the phone. I ended up creating a flask server to stream the video; however, for some reason the processed video wasn’t showing in the app, but it’s probably a silly mistake. It is late now so here’s what I have. If I were to do this again, I’d probably try to get rid of the adafruit feather and control the motor with the raspberry pi for east autonomous control and less power management issues. I have attached a screenshot of the app because it’s late, I’ll try to send a video tomorrow!

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:winter-hardware-wonderland: Winter Hardware Wonderland -- Day 10 :winter-hardware-wonderland: yayy it's day 10 :partyparrot: working on converting the orpheus art from yesterday into a pcb

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Winter Hardware Wonderland Day 10 #hardware-party THE. FINAL. DAY. Wow! Winter Hardware Wonderland is over. Time really flies, doesn't it? Great job to all you focused ones! To those who did not finish: don't worry, we can keep going! And to those who did, you can keep UPGRADING! For my project, A.L.F.R.E.D., he is not quite finished yet. I'm getting closer! I'm in the middle of programming the line tracking feature so A.L.F.R.E.D. can move around the house with snacks. I am currently debugging some errors. The board and chassis setup I am using has speed and directional pins used to control the appropriate functions in the wheels/tracks. M1 is the right track, and M2 is the left track, so "directionPinM1, HIGH" states that the right track is moving forward. While "analogWrite(speedPinM1, rightSpeed);" states we can set the speed of M1 when we're using it later, or just pre-define it. Thank you to those who helped organize Winter Hardware Wonderland!

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Winter Hardware Wonderland Day 10: I finished! I was able to reprint the last piece of the planter and used PVC glue to attach the pieces together. I soldered all the components together onto a perfboard and integrated all the pieces together with a tomato plant! The click you can hear is the relay turning off and on to power the water pump that waters the tomato plant.

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Mohan Day 6-10 days update - github.com/hackclub/winter/blob/main/vmss2009.md Finally I made it. Now, RFID reader is detecting the RFID card presented to it. Then a python module running on RPI is constantly listening to RFID. Once RFID card is detected, the code is updated to a JSON file. This JSON file is hosted in local host. FlutterFlow platform gets this JSON by posting GET request to the local host URI. Then FlutterFlow validates from Firestore database and gets relevant data to be displayed and shows it on monitor. Things to improve. - Refresh rate is currently around 30 secs. This needs to be reduced to 5 to 10 secs. i.e the time it takes for the data to show up once RFID card is presented by user. - I should make the hardware cheaper by eliminating RPI if possible! vmss2009-winter-hardware-party

#hardware-party Day 10/... Wow time flies, the 10 days are already up. AliExpress shipping :tw_face_palm:, one final thing still hasn't arrived (eta was the 17th). I've been too busy with #frc as well as preparing for a music competition recently so I couldn't work on it as much as I'd liked. Still got a ton done though. Today I worked on some software stuff, soldered some wires and getting electronics ready. I'm racing to get it complete before the 🚢 Ship Showcase!

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:winter-hardware-wonderland: Winter Hardware Wonderland Day 10: Finally after all the tries Google Assistant is working on Raspberry Pi 4. Now I just need to make a cover for it ☺️.

Day 10 of WHW - #hardware-party - Unfortunately I didn't have time to work on the project today. I might get more time tomorrow to be able to get enough solders to finish a single tracker hopefully.

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Day 10 of Winter Hardware Wonderland I started on Day 0 and now a final day! I completed my project. Moreover, I learned how to solder and a lot of other Python packages. I also setup my very first Raspberry Pi. It was a lot learning. I didn't have any update today but I would like to recap. My project is a pixel art frame with LEDs that can display image into led. It can also Display slope intercept form Show current playing Spotify Song cover Display the pixel art that is drawn on Pixel Art Editor. I have plans to add more functions too. However it was a lot fun!

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#hardware-party 9?/10 I didn't get too much done today, I had a bit of a rough day. I charged this lipo with my charger I made and soldered some stuff. Sorry about the lack of good photos!

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