Düşük Enerjili Bluetooth (BLE) Jobs

I already have firmware running on an ESP32-based board that includes an RJ45 RS-485/UART port, two analog inputs, several digital I/Os and a small audio stage that automatically answers a SIP/VoIP call and plays audio through an on-board speaker. What I need now is an elegant extension of that code so the same board can also feed data to– and receive commands from – an IoT dashboard app. The new build must keep every existing VoIP feature intact while adding: • A clean, non-blocking interface between the VoIP tasks and the new IoT task set. • Support for both voice playback and tone generation exactly as the current audio path provides. • Reliable sampling of the two AIs along with any DI events, packaged for MQTT/HTTP (whichever you find lighter on re...

I am developing a wearable electronic device for sports such as padel or tennis that allows players to easily record points during a match. The system consists of a small button worn on the player’s shirt that communicates wirelessly with a courtside speaker. When the button is pressed, the system updates the score and announces it audibly. Current Stage: Prototype development. The goal is to design a functional, low-cost, and manufacturable electronic system that can later be scaled to production. System Components: 1. Wearable Button Unit * Small, lightweight device clipped to the player's shirt * Single push button input * Bluetooth Low Energy (BLE) communication * Rechargeable battery (Li-Po) * USB charging circuit * RGB LED status indicator: * Gr...

Hi I will share the details with the shortlisted candidates. thanks

I want to bring a small, ESP32-powered toy drone from concept to first lift-off. The goal is purely recreational: a fun flyer that can be controlled from a smartphone rather than a conventional RC transmitter. Core functionality must include reliable auto-stabilization so even a beginner can keep the craft level. Here’s what I already have in mind: • Flight controller: ESP32 (your choice of dev-kit or custom PCB) • Sensors: a compact 6-axis IMU such as MPU6050/ICM-20689 for attitude data • Motors & ESCs: typical micro-quadcopter class, but I’m open to your sizing suggestions • Firmware environment: Arduino IDE or ESP-IDF—whichever you can deliver faster and maintainably • Mobile control: a lightweight Android/iOS app communicating via...