libblepp
book
| libblepp | book | |
|---|---|---|
| 1 | 7 | |
| 234 | 158 | |
| - | 10.1% | |
| 0.0 | 7.6 | |
| 7 months ago | 7 days ago | |
| C++ | JavaScript | |
| GNU General Public License v3.0 or later | Apache License 2.0 |
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libblepp
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Building an occupancy sensor with a $5 ESP32 and a serverless DB
Bluetooth is fun.
A while ago I was playing around with libble++[0] to read the data from some cheap temp/humidity sensors which broadcast their data as an advertising packet. Pretty simple, considering.
Did some other playing to turn my laptop into a BLE beacon (which worked pretty well with some random app on my phone) and also tried (IIRC successfully) to emulate one of those apple airtags though that code is lost somewhere on said laptop.
A quick glance at my temperature reading code and I'd say that counting the number of seen advertisements would be trivial using that library, I'm currently letting it do all the real work and just filtering the results to the devices I'm interested in.
[0] https://github.com/edrosten/libblepp
book
- Building an occupancy sensor with a $5 ESP32 and a serverless DB
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Safety vs. Performance. A case study of C, C++ and Rust sort implementations
It actually does. You can modify Rust to run without stdlib, reducing its size significantly. There are also tons of tricks to make this work really well so it's very close to C performance.
https://esp-rs.github.io/book/
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ESP32 Standard Library Embedded Rust: GPIO Control
To get started with environments and hardware the Rust on ESP Book provides a great starting point. However, if using Wokwi, much of that is not needed.
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Unlocking Possibilities: 4 Reasons Why ESP32 and Rust Make a Winning Combination
Good places to get started with std Rust on ESP include the Rust on ESP book, Embedded Rust on Espressif by Ferrous Systems. There's also the Awesome ESP Rust GitHub repository that contains a lot of useful material and project examples.
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Embedded Rust on ESP32: compatibility issue with esp_idf_hal and embedded_hal?
I'm not new to microcontrollers or Rust, but I am new to trying Rust on an ESP32. I have followed the Rust on ESP book, and I have everything compiling and flashing fine, at least with a very basic "Hello, World!" printed to the serial console.
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ESP32 Embedded Rust at the HAL: Button-Controlled Blinking by Timer Polling
Familiarity with the basic template for creating embedded applications in Rust for the ESP32 (The Rust on ESP Book is a good resource).
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Embedded Rust tutorials on the ESP32-C3
For environment setup guidelines it would be better to reference the book, although we are working on a great improvement of it: https://github.com/esp-rs/book/issues/59
What are some alternatives?
People-Counting-in-Real-Time - People Counting in Real-Time with an IP camera.
rustzx-esp32 - ESP32 implementation of RustZX Spectrum emulator
ESP32-Paxcounter - Wifi & BLE driven passenger flow metering with cheap ESP32 boards
ruduino - Reusable components for the Arduino Uno.
esp-rust-board - Open Hardware with ESP32-C3 compatible with Feather specification designed in KiCad
esp-template - A minimal esp-hal application template for use with cargo-generate
sort-research-rs - Test and benchmark suite for sort implementations.
esp-idf-template - A "Hello, world!" template of a Rust binary crate for the ESP-IDF framework.
wokwi-features - Wokwi Feature requests & Bug Reports
tock - A secure embedded operating system for microcontrollers
bluer - BlueR — Official BlueZ Bindings for Rust