Hacker News with Generative AI: ESP32

ESP32 WiFi Superstitions (supakeen.com)
The ESP32 is a popular microcontroller to use for do-it-yourself home automation, sensors, and a variety of other bits and bobs that you might want to take care of around the house.
ESP32, Microcontrollers, Home Automation, DIY
141 points by supakeen 19 days ago | 80 comments
Espressif's Response to Undocumented Commands in ESP32 Bluetooth by Tarlogic (espressif.com)
Recently, some media have reported on a press release initially calling out ESP32 chips for having a “backdoor”. Espressif would like to take this opportunity to clarify this matter for our users and partners.
Security, Espressif, ESP32, Bluetooth, IoT
85 points by flockonus 24 days ago | 28 comments
ESP32 Undocumented Bluetooth Commands: Clearing the Air (espressif.com)
Espressif has already provided a formal response to the recently published claims about ESP32 Bluetooth controller serving as a potential “backdoor” or having “undocumented features” that can cause security concerns.
ESP32, Security, Bluetooth, Hardware, IoT
225 points by iamflimflam1 24 days ago | 90 comments
The ESP32 "backdoor" that wasn't (darkmentor.com)
This post refutes the claim that researchers found a “backdoor” in ESP32 Bluetooth chips.
Security, ESP32, Hardware, Bluetooth
29 points by notmine1337 26 days ago | 7 comments
Building an open-source Wi-Fi Mac layer for the ESP32 (esp32-open-mac.be)
The ESP32 is a low-cost microcontroller with Wi-Fi connectivity. Currently, the Wi-Fi MAC layer of the ESP32 is closed-source. This project aims to change that: by reverse engineering the hardware registers and software, we can build a networking stack that is open-source up to the hardware, instead of having to use the proprietary MAC layer.
Open-Source Hardware, ESP32, Networking, Reverse Engineering
161 points by pabs3 26 days ago | 25 comments
Running Python on ESP32-S3 with NuttX (espressif.com)
Yes, you heard it right: Apache NuttX now supports the Python interpreter on ESP32-S3!
Microcontrollers, Python, Embedded Systems, Operating Systems, ESP32
5 points by lupyuen 27 days ago | 0 comments
Espargos: ESP32-based WiFi sensing array (espargos.net)
Develop and deploy WiFi sensing applications effortlessly: ESPARGOS is a phase-coherent ESP32 antenna array.
ESP32, WiFi, Sensors, Hardware
199 points by leoedin 46 days ago | 35 comments
ESP32 Antenna Array Can See WiFi [video] (youtube.com)
ESP32, WiFi, Hardware, Electronics, Video
76 points by qwertox 47 days ago | 3 comments
ESP32 Antenna Array Can See WiFi [video] (youtube.com)
ESP32, Electronics, WiFi, Hardware
12 points by roeles 48 days ago | 1 comments
Tactility: OS for the ESP32 Microcontroller Family (tactility.one)
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Microcontrollers, Operating Systems, Embedded Systems, ESP32, Open Source
183 points by freetonik 84 days ago | 50 comments
Liberating Wi-Fi on the ESP32 [video] (media.ccc.de)
Reverse engineering the Wi-Fi peripheral of the ESP32 to build an open source Wi-Fi stack.
Hardware, Open Source, Reverse Engineering, ESP32, Wi-Fi
326 points by doener 97 days ago | 129 comments
Reverse Engineering the Duco Connectivity Board (github.com/kokx)
My newly built house came with a promising feature: a DucoBox Energy Comfort D325 ventilation system with heat recovery. While the system efficiently preheats incoming air using outgoing air’s heat, its control options were limited to four basic modes through a simple button interface. I wanted more - specifically, integration with Home Assistant. The official solution? A Duco Connectivity Board. But when I noticed it was just an ESP32 in disguise, I knew there had to be a better way.
Reverse Engineering, Home Automation, ESP32, DIY Projects
35 points by kokx 98 days ago | 4 comments
We saved battery in our ESP32 WiFi circuits (TCP vs UDP) (khalsalabs.com)
In the early development stages of PetDrifts, we faced significant challenges with our MVP, which included a custom PCB equipped with an ESP32 C3 mini, sensor, and a Li-ion battery. One of the major issues was the rapid draining of the battery, a critical problem in our IoT device design
IoT, Hardware, Battery Life, ESP32, Networking
43 points by harry247 105 days ago | 25 comments
E-Paper weather display powered by ESP32 microcontroller (github.com/lmarzen)
This is a weather display powered by a wifi-enabled ESP32 microcontroller and a 7.5in E-Paper (aka E-ink) display. Current and forecasted weather data is obtained from the OpenWeatherMap API. A sensor provides the display with accurate indoor temperature and humidity.
Microcontrollers, Weather, ESP32, E-Paper Displays, DIY Projects
47 points by walterbell 114 days ago | 4 comments
CapibaraZero: A cheap alternative to FlipperZero based on ESP32-S3 (capibarazero.com)
Hardware, Open Source, ESP32, FlipperZero, DIY
70 points by andreock 123 days ago | 12 comments
Securely sending DHT22 sensor data from an ESP32 board to PostgreSQL (c410-f3r.github.io)
Let's collect data provided by a DHT22 sensor and store it asynchronously in a PostgreSQL database via WiFi using an encrypted connection. We will start with a brief introduction about the principal technologies, proceed to setting-up the necessary environment and then code our project.
IoT, ESP32, PostgreSQL, Sensors, Security
6 points by emarsden 125 days ago | 0 comments
Embedded Rust in Production? (lohr.dev)
When I mention that we use Rust on the embedded ESP32 platform the most common reaction is a jaw-dropping "This is possible?!". Yes, it is indeed possible! - And we at STABL Energy have used it successfully for over a year now. And because so many people seem interested in why we use Rust and how it is going for us, I decided to write this blog post.
Rust, Embedded Systems, ESP32, Programming Languages, Software Development
205 points by michidk 172 days ago | 287 comments
Working with compressed (ZSTD) binary data on AWS IoT Core (nullonerror.org)
Today we will see how to send compressed CBOR with ZSTD from an ESP32 microcontroller through an MQTT topic, passing through AWS IoT Core, and finally being decoded in a TypeScript-written Lambda function.
ZSTD Compression, MQTT, ESP32, TypeScript
4 points by delduca 194 days ago | 0 comments
EvilAppleJuice-ESP32: Spam Apple Proximity Messages via an ESP32 (github.com/ckcr4lyf)
Hardware, Programming, Security, Apple, ESP32
18 points by whynotmaybe 309 days ago | 3 comments
Reverse engineering ESP32 Wi-Fi driver: the road ahead (esp32-open-mac.be)
Reverse engineering, ESP32, Wi-Fi, Hardware, Embedded Systems
192 points by redfast00 315 days ago | 63 comments
ESP32 Drum Synth Machine (github.com/zircothc)
ESP32, Music, Hardware, Software, DIY
225 points by peteforde 329 days ago | 41 comments
ESP32-S3 has a few SIMD instructions (blogspot.com)
ESP32, Microcontrollers, Hardware, Programming
189 points by _Microft 333 days ago | 58 comments
Unveiling secrets of the ESP32 part 2: reverse engineering RX (ugent.be)
Hardware, Reverse Engineering, ESP32
54 points by timschmidt 334 days ago | 0 comments