Bluetooth Low Energy (BLE) Jobs

This is re-posting of an earlier project with refined requirements and specifications. The project is a c++ XIAO embedded system which reads the IMU, PDM microphone and a future MS58 pressure sensor. The project connects to a iPhone using five BLE characteristic for data and control. The code will use public Arduino and nRF52 libraries. The client will add the MS pressure sensor the to project after acceptance. The client is a developer and will be able to assist and help debug. It is preferred the selected developer also code the matching iOS app using Xcode and SwiftUI. The iOS app connects to the XIAO as the central and is the display device for the data collected from the XIAO. If you are available to immediately start this project please request the SOW.

I want to evaluate if I can use BLE 5.1 direction finding to estimate the angles between multiple devices in realtime. The devices will be less than 4m apart. Please see attached visualization.

Looking for an embedded firmware developer to write code for ESP32 using esp-idf framework to 1. do OTA firmware update using binary file via BLE 2. Wi-Fi provisioning through BLE. Should support both iOS and Android and needs to be secure.

A blazor hybrid application to work on IOS android and windows using library

You have to review our antenna and its positioning along with optimizing it for better performance.