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Posts tagged with :hardware:

dav
@dav0
Day 7 of #10-days-in-public Implemented all the fixes I mentioned yesterday. Unlike yesterday, the game is actually stable, so I can jump around like a monkey. Spent around 30 minutes wondering, "why does my variable keep magically changing." "Ah! It must be UB or a memory violation" (unspoken words of a rust programmer). Long story short, it was because I set a variable as true when it should have been false :peefest:.Tomorrow there are two big features I've been putting off since day 1. Sound: trowel doesn't support sound, and although I gave it a crack on day 4, I made no progress. Optimization (which will be my next main focus): I can jump around smoothly, but not on hardware. This will involve trimming out floating point numbers (which aren't natively supported on RP2040), caching/reusing rendering data, and some screen drawing optimizations suggested on the trowel github. Another black magic option is to try out unlocking the second RP2040 core, but I have no clue how to do that. EDIT: You can completely disregard my last sentence. embassy.dev is a rust async executor for embedded systems (meaning easy multithreading) and it has a module for RP2040 :tw_smile:, so excited to try it out. Long live the crab language.
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AidenRheem-U04FRJE5L5Q
@AidenRheem-U04FRJE5L5Q0
#10-days-in-public, Day 6!, Today I watched another episode of Fusion 360 tutorials and completed the 3D design for my monitor light bar! Currently, I am working on the Arduino code now to make the light switch colors based on a touch input on a sensor!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/ac3bc327-02f1-4f2c-a417-63801661a5ee-screenshot_2024-02-20_at_11.52.08___am.png
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dav
@dav0
Day 5 of #10-days-in-public A bit late tonight (shame), but got some good work done. First of all, I fixed the deterministic rng problem by having a seed screen that randomizes the seed using user inputs and time. I also implemented the obstacle rendering optimization I talked about on day 3. However, with all of this, there's one big problem! Text rendering and 3D rendering work separately. 3D rendering is done using a rasterizer that writes to a framebuffer. This framebuffer is then blit to the screen every frame. Text rendering is directly blitted to the screen directly using embedded_graphics . This causes major flickering when the framebuffer overlaps the text (only on hardware). The solution in my mind is to keep a small area of the screen for text and the rest for the framebuffer. In other words, I'm going to sweep this problem under the rug. Anyway, I'm very happy with how everything's turned out so far. Even with completely disregarding embedded performance, it runs just fine on hardware :tw_smile:
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Scott170
@Scott1700
Day 3 of #10-days-in-public I fully decided I will use an arduino nano after researching in the hopes of it being lightweight enough for servos to hold up. I started on the pcb design and it will most likely end up looking like this:
https://scrapbook-into-the-redwoods.s3.amazonaws.com/bd5c4d17-fa43-46e9-adc4-92a5f2d93aaf-image.png
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NikosTsilas-U04N415FE4T
@NikosTsilas-U04N415FE4T0
Day 3 #10-days-in-public I chose some colors for my website and added a table for the Arduino lesson index. I didn't have the time to do many things, unfortunately, I had (and I have) to go somewhere. Tomorrow is the big day, I will start making some lessons (I hope to make them as interesting and useful as possible).
https://scrapbook-into-the-redwoods.s3.amazonaws.com/9614ed6a-3af6-4fc1-9fd6-54489ae6fd30-screenshot_2024-02-17_175606.pnghttps://scrapbook-into-the-redwoods.s3.amazonaws.com/9f38988a-5622-4f1a-a856-18fa6a056140-screenshot_2024-02-17_180026.png
V205
@V2050
day 2 of #10-days-in-public trying to understand low power module thingy I lost some changes from yesterday 😞 Arduino thingy
https://scrapbook-into-the-redwoods.s3.amazonaws.com/5dbbbd38-a310-446d-a695-9ea232e8a4ff-screenshot_2024-02-16_at_1.03.44___pm.png
V205
@V2050
day 1 of #10-days-in-public learning about converting datatypes in C++(arduino), need to fix some bugs for printing things trying to convert floats to char(I think) and get rid of Strings and use strings
https://scrapbook-into-the-redwoods.s3.amazonaws.com/bdb30f01-72ef-4549-99cd-90e099e6d9d8-screenshot_2024-02-15_at_1.43.38___pm.png
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karmanyaahm
@karmanyaahm0
I got mad at Linux so doing a little hardware now. My first fully-from-scratch 3d model since I got my new printer, so pretty excited
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karmanyaahm
@karmanyaahm0
Spent like 4 hours debugging drivers, cuz apparently 2 of the drivers had some weird ground or capacitance issue where vref (for current limit) only worked when I had my finger (or multimeter probes :angry-dino: near it). So the motor didn't move unless I had my finger near the board. Ended up fixing it by switching to a 3rd driver which was apparently just fine?????
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Kieran
@Kieran0
finished soldering and testing my half size led cube! now to wire it all up to a rpi or pico tomorrow!
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Micha
@Micha0
JLCPCB emailed me to say that the buttons on my E-Fidget PCBs have pins outside of the solder pads (red is good, yellow is bad), how's your day going? (I YOLO'ed it, it'll be fiiiine. Right?)
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Kieran
@Kieran0
r1x70 has arrived for my first major hardware project, "project amber waves"
https://scrapbook-into-the-redwoods.s3.amazonaws.com/46d44544-b3e1-4642-b295-7c627ea2e519-photo_jan_8_2024__1_.jpg
sam
@sam0
Did some of the things I've procrastinating on for a long time! I cleaned up my workspace and installed some fume ventilation!! :partyparrot: Bought some of the small storage drawer things, they are so good for small components and can be fully pulled out for use. Also got some small bins as catch-all storage when I'm building stuff, those fit in really nicely in the drawer I already had. Also sorted some stuff into my SKADIS pegboard, it's amazing and I'm going to 3D print more stuff to go on there! CAD-ed and 3D printed some parts using Fusion 360 to connect up some flexible plastic ducting from home depot. Also made a mount for my air purifier (it only filters PM2.5 so not too useful on its own) to connect it all together! Originally, I had another duct for my Resin 3D printer's fumes, but a ribbon cable broke in there so I'm coping right now. It works! No more solder fumes in my face!
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Tom
@Tom0
It runs on real hardware
https://scrapbook-into-the-redwoods.s3.amazonaws.com/80894593-d999-48c3-8e9d-3fef7493a208-img_20231230_190705.jpg
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leom
@leom0
Made a few minor but well past due updates to my solar website. Also upgraded some of the hardware so I can view the battery and solar panel stats on my phone! (not pictured)
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ShawnMalluwa-U04BBP8H9FA
@ShawnMalluwa-U04BBP8H9FA0
procrastinating my sociology paper so hard that i finished my redesign of the blot pcb mount instead
https://scrapbook-into-the-redwoods.s3.amazonaws.com/f9d3a5a9-be0d-47d9-a85b-b4fb29dcb7b5-image.png
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Averse
@Averse0
More progress on my Uno compatible board! Thinking about switching the MCU for a more powerful one(thanks to @V205 in #hardware for suggesting that I switch).
https://scrapbook-into-the-redwoods.s3.amazonaws.com/cb8cd0ae-8988-4810-9e7c-40ca66eb91e1-screenshot_from_2023-11-28_16-14-58.png
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Domsson
@Domsson0
My OS running on real hardware. Now it has a functional PS/2 keyboard driver and a very basic (unfinished) shell.
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Averse
@Averse0
Unfinished wiring for USB-to-serial chip(ATmega16U2-MU) for my Arduino Uno compatible board I'm making!
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Tom
@Tom0
Made a full adder in my web digital logic simulator
https://scrapbook-into-the-redwoods.s3.amazonaws.com/25ad0b8d-ca37-440b-9719-5832aafaeaba-sni__mek_obrazovky_2023-11-22_v__15.34.49.png
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DarrenLau
@DarrenLau0
Just finished experimenting with point to point networking
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Tom
@Tom0
After some debugging i got my os to work in real hardware and it worked better that i expected (i did find a bunch of bugs)
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muirrum
@muirrum0
halfway done soldering my printers new stepper driver!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/22655e27-7113-47f5-8f9a-e37383dc8402-pxl_20231017_180819264.mp.jpg
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ShubhamPatil
@ShubhamPatil0
shopping list item: survive physics :duck-duck-dino-orpheus:
https://scrapbook-into-the-redwoods.s3.amazonaws.com/ba593470-3071-4e5a-be5d-6158d9c5039c-img_20231017_001651.jpg
IceChes
@IceChes0
A different photo because scrappy didn’t want to work
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Tom
@Tom0
Just got an Arduino!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/be26773b-0336-4142-b235-1d5a1f767efb-img_20231004_120341.jpg
rivques
@rivques0
This is the TOTKey, a tool that generates time-based one-time passwords (TOTPs) for 2-factor authentication. I don't always have my phone when I want to log into an account, so I built this. It's an RP2040-based #onboard PCB with a 128x32 OLED screen, a real-time clock, and a few buttons. The board runs CircuitPython, but it's all managed via WebSerial and a web interface at rivques.dev/random-raw-files/totkey.html.
Evan
@Evan0
made a hack club in-n-out sticker as part of my 100 days shopping list! thanks for the feedback @sarahcha and @reesericci!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/4910b7ac-80d8-40bc-b803-8082f6095c33-hackclubburger.png
sahitid
@sahitid0
my 100-days shopping list :heart_hands:
https://scrapbook-into-the-redwoods.s3.amazonaws.com/860b3d6d-40bd-4d60-9d00-a60ffaa01191-img_2245.jpg
karmanyaahm
@karmanyaahm0
Taking apart a fan to try to backdrive LEDs from its rotation step 1
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Micha
@Micha0
Repainted my soldering iron today 'cause the paint was getting chipped 🙂
https://scrapbook-into-the-redwoods.s3.amazonaws.com/3dcd9ab8-db4e-4515-9193-4933d293db50-pxl_20230827_121150259.jpghttps://scrapbook-into-the-redwoods.s3.amazonaws.com/f05dd68f-848e-4ae7-a041-aa3b6430179f-pxl_20230827_121142644.jpg
karmanyaahm
@karmanyaahm0
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MasonMeirs-U03V4686P9N
@MasonMeirs-U03V4686P9N0
playing the GameBoy game I made on real hardware :)
https://scrapbook-into-the-redwoods.s3.amazonaws.com/881c1e63-c1ee-4a7f-9531-9dcec0f5a05b-img_6678.jpg
msw
@msw0
Right now I’m working on creating a pair of LED glasses from scratch for #onboard with a completely custom designed-PCB. Once I finish the design and get a working prototype in the mail, I’ll make a tutorial. The way it will work is that each eye has a grid of LED lights on it, and you will be able to program it to flash pretty patterns while they’re on your face. The glasses themselves are purely PCB boards, no extra components (so there is a front piece in the shape of sunglasses that go in front of your eyes, then 2 PCB pieces that go behind your ears and hold that front piece to your face. Over the weekend I had a call with @ky200617 to help me figure out how to lay out the components because I had trouble fitting them all, so now I’m spacing all the parts out to make it easier to route them. I’ve removed all the wires from the design, and will be starting the wiring from scratch. Also, you’ll see the neopixels gone from the board- now I’m going to wire up the rest of the board first before laying out the LEDs.
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sarahcha
@sarahcha0
set up arduino ide!!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/2c901c22-1d54-4a5a-bc15-87e5103b5e60-screenshot_2023-07-15_at_6.59.01_pm.png
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msw
@msw0
I’m working on my LED glasses today & now I’m placing the components. Had some issues with the size of the battery holders, so I found some smaller ones to hold 4 AAA batteries.
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sarahcha
@sarahcha0
trying out arduino nano BLE 33!! it’s really cool :)
https://scrapbook-into-the-redwoods.s3.amazonaws.com/04571472-2b67-4e35-8baa-51e79b4e463a-screenshot_2023-07-10_at_5.39.04_pm.png
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leom
@leom0
Yay my third round of PCBs came! Time to solder my mini macropad together! (Thanks to OSH Park for the beautiful after-dark PCBs!)
https://scrapbook-into-the-redwoods.s3.amazonaws.com/71232c3a-e789-435b-b9d7-c6b0e1845af6-e033fc8f-0bcb-4e5b-bdd3-b1cf1cef432c_1_102_o.jpeg
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sam
@sam0
Another day of :shad: Shad! Spent most of today at 🇨🇦 Southern Alberta Institute of Technology aka SAIT! Took the Calgary C-Train 🚊 there and back. Really nice campus and learned tons with pipe soldering and hydraulics! 🛠️
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SamratBose
@SamratBose0
Any guesses? Hint- servo motor, Arduino Uno and TCS230
https://scrapbook-into-the-redwoods.s3.amazonaws.com/f71c2bdb-91e6-4293-a5a4-3efbaa91b52b-img_20230701_121721912.jpg
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m04
@m040
Dear ImGui running on a teensy!! Just need to get the hardware write time down somehow, but even as is it's quite usable
https://scrapbook-into-the-redwoods.s3.amazonaws.com/bec96dd8-2464-4660-95ba-d5819e43ce4e-pxl_20230528_052244675.jpg
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karmanyaahm
@karmanyaahm0
Day 99? of Winter Hardware Wonderland - Project Oreo Custom Rubber Ducky I left a parting gift for my CS teacher. Next year 1st pd CS will find this beauty.
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Cheru
@Cheru0
wahoo!! this uses a Go server running on my computer, which interfaces with the arduino to get nunchuck data (pings the arduino, which returns binary data via serial), & as a proof of concept runs an http server which is being called by a lil html/js app to display joystick position
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Cheru
@Cheru0
got a wii nunchuck hooked up to an arduino! thinking of using this for FRC control :>
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karmanyaahm
@karmanyaahm0
Soldering male connectors to the headers on an Arduino Nano (We have to get Mr. Robot done next week and don't have time to order proper jumpers 🙃)
https://scrapbook-into-the-redwoods.s3.amazonaws.com/2c98d90d-6214-4908-b2ec-3eadb62d4817-pxl_20230510_201211144.jpg
Sameer
@Sameer0
YOHOO!! Hackclub Twitter posted about me and my drone!! All thanks to the amazing @belle for reaching out for this! And to the fabulous @MelanieSmith for making me so motivated for WHW to do well!! PS: Chaotically Awaiting the next hardware event! Till then I'll create Pin and sticker designs for @Holly ! :8bit-heart: Thank You All!
https://scrapbook-into-the-redwoods.s3.amazonaws.com/14492e4f-7b83-4e81-b495-4dbf53a9392f-screenshot_20230510-145635_twitter.jpg
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karmanyaahm
@karmanyaahm0
KiCad tutorial learning PCB Design
https://scrapbook-into-the-redwoods.s3.amazonaws.com/1d790f10-bee0-46f8-a4cf-d3fbc51c0b7c-image.png
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sahitid
@sahitid0
finally got this #hardware-party I LOVE THE STICKERS
https://scrapbook-into-the-redwoods.s3.amazonaws.com/cbea5c75-c4cd-44b6-9e59-a01ff63aa978-img_6633.jpg