ReflectionsOS
NimBLE-Arduino
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ReflectionsOS | NimBLE-Arduino | |
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25 | 12 | |
53 | 634 | |
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8.7 | 3.5 | |
7 days ago | 27 days ago | |
C | C | |
GNU General Public License v3.0 only | Apache License 2.0 |
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ReflectionsOS
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GPS active antenna for wearable for ATGM336H?
I am searching for a GPS antenna for a wearable project. It uses an ESP32-S3 and ATGM336H GPS module (basically an inexpensive version of the UBlox Neo-8) on a custom designed 34 mm round board. This is in the Reflections open-source project at GitHub - frankcohen/ReflectionsOS: Arduino-based Internet enabled watch project and reference architecture to make your own projects.
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Arduino and BLE on ESP32 as server and client combined, using NimBLE
Below is the source code I wrote. It is part of the code I wrote for https://github.com/frankcohen/ReflectionsOS and does not compile by itself - I include it as an example to write your own code. I am distributing it under a GPL v3 license - free software, when you change the code you need to publish your code to the world. I use the code in my Reflection's open source project at https://github.com/frankcohen/ReflectionsOS in the BLE.h and BLE.cpp code files.
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Preparing product for manufacturing
I've been working on an ESP32-S3 open source project (https://github.com/frankcohen/ReflectionsOS). It's a 34 mm round board, double sided, for building a mobile entertainment experience. I've been successful at producing short runs (less than 10) in China and having the assembly work done in California (Surface Mount Solutions in Santa Clara does an excellent job). I'm coming up on a decision to manufacture 500 of the boards and I'm split between sourcing the boards and parts in China and having the assembly done here. I'm expecting the reject rate on the board testing will justify the California assembly costs.
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ESP32 USB is frustrating, try JCUSB for S3 + USB + CDC + OpenOCD + Arduino IDE
other documents are there, for example using ESP32 and SD/NAND as MSC, using JSON data, and other sketches are at https://github.com/frankcohen/ReflectionsOS/tree/main/Docs
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ESP32-S3 USB frustrates me, you too?
Thanks! My hope is my project becomes a useful open-source resource for other makers too. I want to get the USB upload working to the same degree as the reference dev boards. That's why I'm working on this now. The repository is at https://github.com/frankcohen/ReflectionsOS
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Anyone know of an accelerometer gesture sense that doesn't require tensorflow or other remote AI?
Thanks! I'm glad to hear your experience with TFLM and the others. I found the Dynamic Time Warping algorithm to train and find patterns. I got it working today on ESP32-S3 and an LIS3DHTR accelerometer. It's accurate about 70% of the time. I'll publish the source to the Reflection's Experiments repository https://github.com/frankcohen/ReflectionsOS/tree/main/Experiments soon.
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Turn your TTGO T-Watch 2020 to BlueTooth Mouse and control your computer...
That's a cool project! I'm making an esp32 wrist watch too (https://github.com/frankcohen/ReflectionsOS). It doesn't have a touch screen, it does have a compass/gyro/accellerometer/gps. I'm thinking of adapting your code to use the accelerometer to do the pointing. If it works I'll post the results to github. Thanks for the inspiration! -Frank
- AirGuitar fun with ESP32, Bluetooth Classic A2DP, SD NAND, Accelerometer
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ESP32-S3 Lillygo T-Display: Is a FAT32 Mass Storage Device using onboard FLASH possible?
To be clear, I haven't done any of this, but I'm assuming these would be the steps. With the S3, you can certainly emulate a mass storage device - and here's a link for someone who did that: https://github.com/frankcohen/ReflectionsOS/tree/main/Devices/Hoober/Software/USB-MSC Ok, now for the next part - fat32 (or more specifically, long filenames) - looking at the example above, it looks like everything is done at the block level, so I would guess that would mean when you're doing your partition table on the ESP32, you'd set aside some amount, like let's say 200k, and instead of using it for NV (like LittleFS or whatever), you'd then perform the block read/write functions. Assuming this is the case, then really the format of the partition is irrelevant to the ESP32, it's only handling blocks - it would be the PC that would format it FAT32 or whatever - so this should work.
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[PCB Review] An IOT playground board based on esp32 s3 wroom
I agree, there's nothing like making your own board. My open-source open-hardware ESP32 project is here: https://github.com/frankcohen/ReflectionsOS. It's a round 34 mm double sided board for a wrist watch project. Hoping to do what you did next week, post the schematics for feedback and quality improvements. Thanks for the inspiration. -Frank
NimBLE-Arduino
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Embedded Rust Bluetooth on ESP: BLE Scanner
The code will be built using the esp32-nimble crate. The esp32-nimble crate is a wrapper for the ESP32 NimBLE Bluetooth stack. The crate is inspired by the NimBLE-Arduino project. NimBLE is an open source BLE stack fully compliant with the Bluetooth specification providing both host and controller functionalities. NimBLE is also part of the Apache MyNewt project. The ESP-IDF supports only a port of the NimBLE host stack and provides a different controller implementation.
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Arduino and BLE on ESP32 as server and client combined, using NimBLE
I originally tried using the ESP32 blue BLE library. I ran out of memory. Switched to NimBLE-Arduino, an Arduino fork of Apache NimBLE, a replacement open-source BLE library https://github.com/h2zero/NimBLE-Arduino https://www.arduino.cc/reference/en/libraries/nimble-arduino/ https://h2zero.github.io/esp-nimble-cpp/md__migration_guide.html#autotoc_md46
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Health Thermometer Service on ESP32
I like NimBLE-Arduino, and this has a BLE client example that you can adapt to your needs, including both regular reads and notifications. Note that this isn't pure C++, this is using Arduino. There's also a version for use with ESP-IDF: esp-nimble-cpp, with a corresponding BLE client example. The examples for both projects are heavily commented and quite easy to follow.
- Nimble,, how
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Bluetooth or WiFi for apps?
On the ESP32 side, I use this repo for Bluetooth connectivity: https://github.com/h2zero/NimBLE-Arduino
- esp32-s3 code examples
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wifi& ble on tinypico and sketch too big
u/Marijn_fly's is the cleanest solution I can think of but if you're ready to get your hands dirty, there's another BLE library called NimBLE that's massively smaller that the one you're using. Plus I'm an incompetent noob and I find it being easier to work with :D
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Is it possible when creating a BLE mesh to have a node that sends and recieves messages
I recently also looked into this and the NimBLE GitHub and examples helped me a lot to implement this. Source: https://github.com/h2zero/NimBLE-Arduino
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How to connect 8BitDo using Arduino?
Try to implement a driver myself using the NimBLE stack. However, I don't know where to start working with a BLE gamepad.
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Building an ESP32 powered BLE beacon detector to operate a dog door for this guy who is getting his leg amputated this week. I'm close with the hardware but new to BLE. Could use some help!
You indeed need an advertisement packet scanner. Arduino version could be e.g. this: https://github.com/h2zero/NimBLE-Arduino/blob/master/examples/BLE_Beacon_Scanner/BLE_Beacon_Scanner.ino
What are some alternatives?
JPEGDEC - An optimized JPEG decoder for Arduino
ESP32-BLE-Gamepad - Bluetooth LE Gamepad library for the ESP32
bluetooth - Cross-platform Bluetooth API for Go and TinyGo. Supports Linux, macOS, Windows, and bare metal using Nordic SoftDevice or HCI
Adafruit_TinyUSB_Arduino - Arduino library for TinyUSB
ESPHome-Apple-Watch-detection - ESPHome BLE Apple Watch presence detection
esp32FOTA - Experiments in firmware OTA updates for ESP32 dev boards
ATC_MiThermometer - Custom firmware for the Xiaomi Thermometers and Telink Flasher
nodemcu-firmware - Lua based interactive firmware for ESP8266, ESP8285 and ESP32
esp-nimble-cpp - C++ library for the esp32 NimBLE stack based on and mostly compatible with @nkolban cpp_utils BLE library.
arduino-esp32 - Arduino core for the ESP32
esp-idf-arduino-bluepad32-template