Bluetooth Low Energy (BLE) projects

ID / Date Listing

Need to Convert Nordic Firmware into STM32.

WORK: Converting NRF52840 Nordic code to STM32 wherein STM32WBA55cg is used. Development board : STM32WBA55G-DK1 Overall project : The product reduces high stea...

HL-39552066

IoT Wearable Tech Advisor Needed

I’m developing a BLE-based wearable IoT product and need a technical advisor who can help me avoid costly mistakes and ensure I hire the right prototype enginee...

HL-39552075

Best deals Live

https://rzp.io/rzp/w5680QC Phone 12 256 gB for 5000rs . incl GST. discount price. prices reduced due to STORE CLOSING . FREE HOME DELIVERY WITHIN 3 DAYS FROM MU...

HL-39551198

Low-Power Smart Sensor System with Mobile Alerts

We’re developing a compact, long-life smart sensor device that monitors mechanical activity and detects abnormal events using motion and/or sound. The system wi...

HL-39548420

Wearable Sensor Data Transmission

I'm developing a wearable sensor module using the MAX86141 PPG sensor (for heart rate, SpO₂, etc.) interfaced with a Seeed Studio Xiao ESP32-C3. The module inco...

HL-39544439

ESP32 Light Control App

I'm looking for an experienced developer to create a mobile app that controls lights using an ESP32 via BLE. Key Requirements: - Light control functionalities:...

HL-39542540

MacOS Video Conference Camera Selection App

Requirement Description: Implement a three-way application (Zoom, Teams, Google meeting) on macOS to automatically switch to using USB Camera when there is a US...

HL-39537521

Flutter BLE Expert Needed to Upgrade Bluetooth Classic App for iOS Compatibility

I need a Flutter developer to upgrade my existing Android app that communicates with an ESP32 via Bluetooth Classic to Bluetooth Low Energy (BLE) for iOS compat...

HL-39537084

Motion Tracking Device Development

I need a small, wearable motion tracking device. The device should track motion using a combination of accelerometer and gyroscope. Requirements: - Connect to W...

HL-39533984

Compact Low-Power Wearable Prototype

I'm looking for a skilled developer to create a compact, low-power wearable prototype. An NDA is required for this project. Key Requirements: - Custom behaviora...

HL-39533797

Home Surveillance System Development

I’m looking for a skilled and reliable developer to help finalize and scale a non-lethal smart home defense system similar to Ring, but with active deterrence c...

HL-39530865

ESP32 Firmware Developer for Smart Pet Health Wearable (Heart Rate + Motion)

We are building a WHOOP-style health tracker for pets, starting with dogs, and are looking for a skilled firmware developer to create the first working prototyp...

HL-39529107

Raspberry Pi Gospel Device Development

I'm seeking a skilled embedded systems or Raspberry Pi developer to create a Gospel Device. This device will serve as a spiritual tool, integrating various feat...

HL-39526477

IoT GPS tracker and health

Hello all, I’m reaching out here on Freelancer as we are looking to develop an advanced, user-friendly pet tracker. Our goal is to build a custom device with fe...

HL-39518478

Cross-Platform ESP32 BLE Mobile App Development

I need a mobile app developed for both iOS and Android platforms, designed to interface with an ESP32 via Bluetooth Low Energy (BLE). The app will function like...

HL-39515339

Arduino-based Data Logging Prototype

I need an experienced Arduino/electronics expert to build a data logging prototype for laboratory applications. The device will monitor: - pH - ORP - Temperatur...

HL-39513581

Rapid Nordic IoT Firmware Development

Title: AI-Assisted Firmware Development for Nordic Thingy91X (nRF5340 + nRF9151) — Full Project in 1 Day Description: We are looking for a highly skilled embedd...

HL-39509221

CNC Programmer for Titanium Milling

I need an experienced CNC programmer who specializes in milling, specifically for titanium. Key Requirements: - Expertise in CNC milling operations - Proficienc...

HL-39506036

Raspberry Pi APK Development

I need a developer to create an APK for Raspberry Pi OS that mimics the functionality of Live Prompter 2. It needs to be a package that can be flashed straight...

HL-39504796

nRF52840/nRF9160 Firmware Development

I'm seeking an experienced developer to complete the firmware for our nRF52840 and nRF9160 based system. Project Overview: - Client board: nRF52840 MCU with tem...

HL-39499414

React Native Developer for BLE Integration

We’re looking for a skilled React Native Developer with hands-on experience working with Bluetooth Low Energy (BLE) devices to join our team. Primary requiremen...

HL-39499419

Fix Arduino Compilation Errors and the esp32 module and temp sensor should be working

I need assistance in resolving compilation errors with an existing source code for the ESP32 Dev module connected to a temperature sensor (MLX90640/MLX90641). T...

HL-39425701

ESP32-based PCB with Ethernet PoE + Firmware (Cloud & OTA Updates)

We are looking for an experienced hardware and firmware developer to design a custom PCB based on the ESP32, featuring Ethernet with PoE (with priority over Wi-...

HL-39422761

Prototype for Ear-Worn Sleep Bruxism Monitor -- 2

Hello, We are currently developing an ear-worn wearable device designed to detect bruxism and jaw clenching during sleep, and we are looking to request prototyp...

HL-39421628

Enhance BLE Functionality on PCB -- 2

I'm seeking an experienced developer to improve and add functionality to existing C/C++ code on my PCB design, which currently supports WiFi. The original proje...

HL-39420265

ESP32/STM/PIC Lora BLE Developer Needed

I'm seeking a part-time developer skilled in ESP32, STM, and BLE for various small tasks. Key Responsibilities: - Lora, BLE, and UWB application development - W...

HL-39420863

Cross-Platform Bluetooth Control Software

I'm seeking a developer to create software that allows users to control Bluetooth keyboards using custom Bluetooth devices. The software needs to be compatible...

HL-39419616

ESP32 Firmware Developer for Auto-Stabilized Weight Capture

We’re developing a precision weight-measuring device using a foil strain gauge, HX711 amplifier, and ESP32. The goal is to automatically detect and capture weig...

HL-39407092

Web-Based SVG to 3D Model Tool and IOT integrated

I need a web-based admin interface that allows for the uploading, editing, and converting of SVG files into 3D models. The application should also integrate wit...

HL-39406317

Stripe M2 & NFC Developer for Mobile App (Flutter Flow implementation)

Title: Stripe M2 Reader + Tap to Pay Connection Developer (Short-Term Project) Company: FanBase Tickets (JNew Technologies, LLC) Location: Remote (U.S.-Based Pr...

HL-39405649

Medication Tracking Apps - Android & iOS

Medication Tracking App for Android and iOS (mobile phone and tablet applications) I need a native medication tracking APP for Android and iOS. The tablet/phone...

HL-39403646

SnatchGuard Wearable Safety App Development

1. Project Overview SnatchGuard is a wearable safety solution combining a smart bracelet and a mobile app. The bracelet connects to the mobile app via Bluetooth...

HL-39402130

Smart Auto-Parking & Fine-Protection Device

Project Overview: We are developing a smart auto-parking and fine-protection device for cars in Dubai. The device should detect car stops, fetch GPS location, c...

HL-39397278

Develop Smart Maintenance IoT&Mobile App

We are developing a compact, battery-powered device to monitor mechanical usage in residential environments. The device will log motion-based events and wireles...

HL-39391585

ESP32 BLE Sensor Integration Specialist

I'm looking for an experienced ESP32 programmer to help with a BLE project. The goal is to integrate sensors like RTC, NFC, and RFID. Key Requirements: - Integr...

HL-39392580

Develop IoT Maintenance Tracking Device

Smart Maintenance Device – Developer Brief ⸻ PROJECT OVERVIEW We are developing a compact, battery-powered device designed to track usage patterns of a mechanic...

HL-39391682

nRF52840 SDK Troubleshooting

I'm seeking an experienced developer with expertise in Nordic Semiconductor's nRF52840 and the nRF5 SDK, particularly with the S140 SoftDevice. Project Requirem...

HL-39388203

QR Code Door Unlock Prototype (with off the shelf components) -- 2

We are seeking a skilled freelance Electronics Integration Engineer to build the hardware foundation for a prototype system that unlocks a door by scanning a QR...

HL-39381987

WiFi-Controlled LED Dimming and Color Changing

I'm looking to develop a Wi-Fi-controlled LED lighting system capable of both dimming and color changing. This will involve creating hardware drivers and a suit...

HL-39376137

Expert excel in VBA audit

An Excel expert can streamline the process of generating personalized letters (PDFs) based on a list of addresses and recipient data stored in an Excel (.xls/.x...