4 ms·
Liberating Bluetooth on the ESP32
- swaits 10mo agoThis unlocks some really nice stuff in the future!
- victorbjorklund 10mo agoLike what?
- avidiax 10mo agoCustom protocols (maybe LORA), smart jamming, security research, support or partial support for newer Bluetooth protocols.
- kgarten 10mo agoWhy not link to the official recording ? https://media.ccc.de/v/39c3-liberating-bluetooth-on-the-esp32 https://media.ccc.de/v/39c3-liberating-bluetooth-on-the-esp3...
- gnabgib 10mo agoThe bot posts what @bsandro posted on lobsters https://lobste.rs/s/n7u47v/liberating_bluetooth_on_esp32 https://lobste.rs/s/n7u47v/liberating_bluetooth_on_esp32
- bmitch3020 10mo agoC3 also pushes to YouTube: https://youtu.be/q-_YVIIrF6A https://youtu.be/q-_YVIIrF6A
- muppetman 10mo ago[flagged]
- wkat4242 10mo agoI know :( I don't have the patience for video content. But in this case it seems to be an event (CCC) recording so it makes more sense.
- NooneAtAll3 10mo agowdym? it's just a normal format for conference talk? you can see similar videos on CppCon, PyData, RustConf, DefCon and others
- allarm 10mo agoText is much, much better, than video. That's what they meant, I think.
- madduci 10mo agoIs there any TL;DW way to get the most important content, without watching it?
- cinntaile 10mo agoFeed it to an LLM summarizer.
- NooneAtAll3 10mo agoI for one am surprised that ESP32 hasn't been reverse engineered much earlier, judging by its popularity
- NoiseBert69 10mo agoNot much need for reverse engineering - with the exception of the radio blobs. ESP-IDF is a bright stars when it comes to opensource HALs in the microcontroller world.
- cracki 10mo agoThe ESP32 is quite open, by the company, not by RE efforts. If you were under the impression that community RE was to praise for its usability, then you must be thinking of the ESP8266 or what came before it, not the ESP32. This video is not about the entire ESP32 either. This video is about one of the ESP32's radio functions, Bluetooth. Espressif keeps their radio stuff closed for some reason. It might be due to licensing (if they bought parts of the radio), govt regulations of some countries mandating that users can't abuse the radio, or maybe it's trade secrets they want to keep secret to keep an edge on the market. You don't appear to know much about the ESP32 and its ecosystem. You should, if you are at all interested in electronics, microcontrollers, or "Internet of Things".
- NooneAtAll3 10mo ago> If you were under the impression that community RE was to praise for its usability no, it's you are under some impression you imagined that came from misreading what I wrote I'm saying "if something is popular, one would expect everything to be scrutinized already, just due to popularity". "binary blob in the middle of open source" is doubly intriguing target that's weird that it took so long to attract attention
- vollbrecht 10mo agoI don't think its a lag of attraction. If you interested in it, you quickly will realize how much of a behemoth that task really is. First you have to limit yourself to a specific radio variant, because the actual radio hardware is different on different esp32 variants. Then you have a massive amount of things this "blobs" actually contain. And last there is also a lot of continues movement integrating newer radio features. E.g newer BLE version standard implementation and so forth. So you play catch with actual new development.
- amelius 10mo agoMeanwhile I still cannot get Bluetooth audio to work on my Linux workstation. I tried 3 different Chinese USB sticks already and asked ChatGPT for help. Maybe I should give up and try some more expensive brands. But keep in mind that ESP32 is also of Chinese origin.
- tedivm 10mo agoThis is such a weird comment. You can find things in the US where there are cheap versions that don't work and more expensive versions that do work. Going out of your way to by less expensive things and then blaming the Chinese on the quality, rather than your cheapness, is really a decision. From personal experience, I've got dozens of esp32 devices around my house and they all work great.
- immibis 10mo agoNot to mention that Bluetooth on Linux is questionable to begin with.
- estimator7292 10mo agoLinux has the best Bluetooth stack of any of the current three operating systems. Which is kind of a depressing statement, but it's actually feature complete. You really don't want to know just how bad Windows' Bluetooth stack is. It doesn't even implement basic features. I would hesitate to call it a compliant implementation at all. Oh, the API call for all BT features exist, but they either do nothing, return garbage and lies, or are just broken. If you use a well supported BT adapter under the right Linux distro, it's flawless.
- YouAreWRONGtoo 10mo ago[dead]
- amelius 10mo agoNo, your comment is weird because I explicitly said that country of origin has nothing to do with it because ESP32 is of the same origin. If anything is to blame it is the Bluetooth protocol and the fact that it is apparently hard to implement correctly.
- deleted 10mo ago[deleted]