blutack

7 ms·

31.
by blutack 2y ago
You could use ws28xx/skxx based addressible strips laid out in rows. Usually WLED would be recommended to drive it, but for playing a video, the teensy fastled library comes with a demo specifically doing what you discuss with a film.
32.
by blutack 2y ago
The athom stuff is a bit annoying because they never bothered to upstream anything to support their fairly minor changes - they just forked instead. You can still install upstream WLED, but the remote control support is faffy. The mottramla
33.
by blutack 2y ago
Mandatory cloud connection for the initial setup (although you can use it in LAN mode afterwards).
34.
by blutack 2y ago
WT32-ETH01 about $7 on Aliexpress if you want something ESP32 based. As easy or easier to get started with than the STM parts in my opinion. Comes with MQTT, HTTP clients & servers etc. When I last used Cube-MX, it was a very unpleasant
35.
by blutack 2y ago
Now that I think about it, it's pretty shocking if a trainer doesn't support FTMS - did you check if it does? Possibly they are programming the Microchip BLE gateway to implement the necessary FTMS characteristics and using the UA
36.
by blutack 2y ago
If you generated that UART log with an ESP32, then ignore me! Otherwise, it looks like you found the debug port for an ESP IDF project. In that case it's not likely to use the BLE to UART Microchip unfortunately. Therefore there's
37.
by blutack 2y ago
I've seen this sort of thing previously (and the UUIDs match up). https://developerhelp.microchip.com/xwiki/bin/view/applicati... It's what happens when a product developer already has a design for
38.
by blutack 2y ago
Author of this has an interesting live/realtime(?) podcast called "Railnatter" about the railways, public transport and UK infrastructure politics. Recently in the news as the UK government rail minister appeared to have dire
39.
by blutack 2y ago
As I'm too late to edit - if you use it in a setting where it's always powered, you might want to consider removing the battery as a safety measure. It's a fairly simple hardware hack, various YouTube videos and blogs on the
40.
by blutack 2y ago
+1 for the hot garbage piezo, but as OP says the ESP32 has a lot of fun hacking potential and there's plenty of space in the case especially if you remove the battery.
41.
by blutack 2y ago
Very simple if you flash it with awtrix, it has a neat JSON API.
42.
by blutack 2y ago
I wouldn't swear to it but from mine it looks like there's a grid of light guides between the led PCB and the front screen to prevent any cross bleed. The front screen is translucent but not transparent (think heavy tinted window)
43.
by blutack 2y ago
The ESP32S(1?) that's inside is fairly powerful as embedded mcus go but that said... If you need grunt and you don't specifically want the aesthetic of an led matrix panel you'd probably be better off with an old phone or tab
44.
by blutack 2y ago
The Ulanzi TC001 might fit the ticket, it's not open source but it's an ESP32 and a bunch of addressable LEDs you can flash through the USB port. There's an ecosystem of open source firmware for it already.
45.
by blutack 2y ago
If you're looking for something with an addressable LED matrix in a clock style form factor, the Ulanzi TC001 [0] for ~$50 is worth having a look at. Doesn't quite have the same aesthetic but inside it's just an ESP32 (flashe
46.
by blutack 2y ago
From the GadgetBridge pull request[0] mentioned by dingensundso: There's a nice site with a lot of the BLE API documented (including commands) at https://colmi.puxtril.com/ 0: https://news.ycombinator.com&#x
47.
by blutack 2y ago
Sorry I'm not mitxela, I just find pretty much all their projects old school hacker awesome. Good suggestion but from their article it seems like there's some really odd silicon level interactions going on so who knows? Might be w
48.
by blutack 2y ago
There's also a short associated YouTube video showing it in action. https://youtu.be/IHD3ji-F600
49.
Programming a CH32v003 with light(mitxela.com)
148 points by blutack 2y ago|13 comments
50.
by blutack 2y ago
See also the CH32V003 [0] (more expensive variants also available), a neat, cheap and standalone RISC-V with plenty of modern & flexible peripherals, good package options, single wire debug and an open toolchain [1] for ~20c per. Mitxel
51.
by blutack 2y ago
I don't read Portuguese but there's nothing specifically regarding beaches in their courtesy translation [1] beyond avoiding areas next to SAR helicopter bases (which is fair enough) and there's nothing on their UAS restricti
52.
by blutack 2y ago
This is not true as a blanket statement unless you are talking about commercial flying, large drones or restricted airspace. I'm not sure what country you are referring to but I haven't personally come across one that requires a p
53.
by blutack 2y ago
Water bottle rockets that have to carry and land an egg without cracking it are fun, and the launcher except pump can be 3d printed. The kids can make the rest of the rockets out of cardboard/foam/plastic bag parachutes etc).
54.
by blutack 2y ago
The Olimux ESP32-POE / wESP32 boards have a proper ethernet connection and PoE support. Means you don't need to worry about wifi coverage or power as long as you can get an ethernet cable to it - and those are cheap & easy to
55.
by blutack 2y ago
The Olimux ESP32-POE / wESP32 boards have a proper ethernet connection and PoE support. Means you don't need to worry about wifi coverage or power as long as you can get an ethernet cable to it - and those are cheap & easy to
56.
by blutack 3y ago
Additionally, phone GPS chipsets are often built into the baseband modem and performance might be limited compared to state of the art (and just price, packaging limitations for antennas, assumption that a phone always uses A-GPS etc). The
57.
by blutack 3y ago
Interesting article, be helpful if there was a breakdown of why the author thinks people are dying. Seems from the article like there are three problems: - SAR teams knowing where people are - SPOT/inReach, PLB, Recco (at a push) - SAR
58.
by blutack 3y ago
Price-wise a P1S will work out cheaper unless you get a really poor quality Trident kit (which I wouldn't do). If you just want to print stuff (like if the printer is to support another hobby, or you have a business) get a P1S/X1C
59.
by blutack 3y ago
In addition to the other poster's suggestions, "mouse ears" or other brim styles (slicer availability may vary) can be useful to help reduce warping.
60.
by blutack 3y ago
The LDO kits are the top end of the price bracket. A friend is building up one of these and is fairly happy with it: https://magicphoenix.xyz/product/voron-v2-4-customized-kit/ They also have Trident kits. I'

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