Bluetooth Low Energy (BLE) Jobs

We’re seeking a skilled freelancer or team to develop a compact, ESP32-based wearable device that integrates Bluetooth stereo audio (3W x 2), individually controlled SK6812 LEDs, and BLE app control. The project includes PCB design, firmware development, and optionally mobile app integration. The firmware must support A2DP audio streaming, BLE GATT-based LED control, and button inputs for media functions (play/pause, volume, forward/back, power on/off). Candidates with experience in audio + LED concurrency, compact hardware design, and app-connected devices are encouraged to apply. Hardware Requirements A custom PCB that fits inside a glasses-type wearable, integrating: ESP32 module (Classic Bluetooth + BLE) Stereo 3W x 2 audio amplifier -To drive tactile transducers (bo...

We are seeking an experienced embedded systems developer to program an ESP32-based Dual CAN Bus PCB board from AutoLabs for an automotive-grade application. This project is part of a larger smart vehicle authentication system. You will be responsible for developing and deploying the firmware that enables dual CAN communication, Bluetooth Low Energy (BLE) interaction, relay control, and real-time data filtering and diagnostics on the ESP32 board. ⸻ Scope of Work: 1. Platform: • ESP32-S3 or similar (AutoLabs Dual CAN Bus board) • Arduino IDE / PlatformIO (preferred) • AutoLabs Dual CAN Bus library and hardware references 2. Required Features: • Simultaneous read/write and pass-through of messages from two CAN channels • Apply filtering logic to block or all...

I need an AR navigation app for events. It should work offline and use BLE technology. Key features: - 3D route overlay - Real-time updates - Offline messaging (type to be determined) Ideal skills and experience: - AR development expertise - BLE integration - Offline messaging systems - Mobile app development (iOS/Android)

I'm seeking an Android developer to create a prototype app that connects via Bluetooth to a fitness band (e.g., Xiaomi Smart Band 9 Active) and translates the user's heart rate into: - Full-screen color changes based on BPM zones - Real-time heartbeat sound feedback in headphones - Metronome alert tones at dangerous heart rates - Light ambient background music in safe zones - Memory buffer (10 seconds) to detect sharp pulse changes - User-defined thresholds for low/high BPM danger - Display can be split for 2 users (2 devices, 1 screen) - Graph of pulse history stored after each session Bonus if you have experience working with BLE signals, Android audio playback, and simple UX. A full tech specification PDF will be provided.

I'm seeking a developer to create an automated robot aiming system for Nintendo Switch using Python and Raspberry Pi. Key Requirements: - Connect Raspberry Pi to Nintendo Switch via Bluetooth. - Automate Joy-Con aiming at detected robots using YOLOv8 for object detection. - Maintain normal Joy-Con operation simultaneously with Python message reception. - Ensure system prioritizes accuracy over speed. - Provide integration for potential signal sending with Joy-Con or Pro Controller. Ideal Skills & Experience: - Proficiency in Python and Raspberry Pi. - Experience with Bluetooth communication. - Familiarity with Nintendo Switch and Joy-Con mechanics. - Background in computer vision and object detection (YOLOv8). - Strong problem-solving skills and attention to detail. Please sha...

Hi if you can create a that works on SLM 3.0.0 the 9160 dev kit so that I can download over SWD to the Mikroe477 click board, then we can talk. I could not get the Serial LTE modem package to work properly with the trace enabled on the DK. Don't know how you can test without a kit. We have many successful builds but the config files are not correct . What can you do to make this happen. I have a DK connected by USB and nothing else. Hope you can build a standard hex file supporting Cellular Monitor and Serial Terminal. It should run a precompiled version without any reconfig but I can't find one. ============================================================================ Tasks for your effor 1: config the 9160 DK with the newer version of SLM (3.0). 2: Verify that the Cel...

I'm seeking a passionate and skilled freelance IoT consultant/engineer based in Kolkata to design and develop innovative IoT solutions. The role involves integrating various sensors and developing firmware for microcontrollers, with a focus on ESP32. Key Responsibilities: - Design and develop IoT solutions with sensor integration for temperature, humidity, and motion detection. - Implement communication protocols, specifically MQTT and BLE. - Develop firmware for ESP32 microcontrollers. - Interface with cloud platforms such as AWS IoT, Azure IoT Hub, Google Cloud IoT, Blynk, ThingSpeak, or custom dashboards. - Assist in PCB prototyping, testing, and hardware troubleshooting. Ideal Skills and Experience: - Strong experience in IoT solution design and development. - Proficiency in int...

I am seeking a skilled developer to integrate a DC motor, Battery Management System (BMS), GPS, and cellular connectivity into a cohesive system. This project involves building CAN/UART data reading capabilities and interfacing with a mobile app and backend system. The mobile app must support both iOS and Android platforms. Key Requirements: - Integrate a DC motor with BMS, GPS, and cellular modules. - Develop CAN/UART data reading functionalities. - Interface the system with a mobile app and backend. - Ensure the mobile app is compatible with both iOS and Android. - BMS integration should include battery health monitoring, charge/discharge control, and temperature regulation. Ideal Skills and Experience: - Experience in motor integration and control systems. - Proficiency in CAN/UART co...

I'm developing an innovative golf training product that utilizes lasers, and I need an expert in software development to help analyze key performance data. IMultiple lasers that track a golf swing and yes the data/app from the device will be connected to iPhone via Bluetooth and app Key software features: - Shot tracking and statistics - Swing analysis - Progress tracking over time The software needs to be compatible with mobile platforms, either iOS or Android. I will also need assistance on the basics of the hardware as well Ideal skills and experience: - Strong background in mobile app development - Experience in data analysis and visualization - Familiarity with golf metrics and training aids - Proficient in integrating software with electronic hardware L...

I need assistance in developing Arduino code to integrate the SIM A7670C module with an ESP32 to create a portable hotspot using a 4G internet connection via a standard SIM card. The primary goal is to enable internet sharing and set up an access point for both indoor and outdoor use. Key Requirements: - Develop Arduino code to connect SIM A7670C with ESP32 - Configure the system to function as a portable hotspot using 4G internet - Enable internet sharing and access point functionality - Ensure compatibility with a standard SIM card - Optimize for both indoor and outdoor environments Ideal Skills and Experience: - Proficiency in Arduino programming and ESP32 integration - Experience with SIM modules, particularly the A7670C - Knowledge of setting up portable hotspots and access points -...

Title: Build ESP32 Prototype for Dog Wearable (Heart Rate + Temp + Activity + Simple Android App) ⸻ Description: Hello! We are building Tail Vitals, a new startup to create wearable health trackers for dogs (like WHOOP, but for pets). Right now, we want a very basic low-cost proof-of-concept (POC) using off-the-shelf parts. Scope of work: Build a breadboard prototype using: • ESP32 microcontroller • MAX30102 sensor (heart rate & SPO2) • DS18B20 or similar (body temperature) • MPU6050 (activity / accelerometer) Write ESP32 firmware to: • Read data from these sensors • Send data over Bluetooth or WiFi to an app Build a simple Android app (or Flutter app) that: • Shows live readings (heart rate, temp, movement) &bul...