Hardware & Firmware Engineer for Compact Wearable Device (Low‑Power Sensors + BLE

Design new product (pcb design and firmware development) including the enclosure. · PCB design for BLE device with battery and sensor. · ...

We are seeking an experienced developer to integrate multiple biometric sensor devices into a web-based muscle testing application hosted on Replit. · Connect USB and BLE devices such as heart rate monitors IMUs GSR sensors respiration belts force sensors and polygraph hardware. ...

We are looking for a developer to create compliant integrations between various biometric sensor devices and our web-based muscle testing application hosted on Replit. · Device Interface Integration: Use official protocols (USB Serial, HID, BLE GATT) or published APIs to access s ...

We are seeking an expert Embedded developer with a strong background in STM32 microcontrollers, Bluetooth Low Energy (BLE) communication, · and Over-The-Air (OTA) firmware updates. · ...

We are seeking a freelance Embedded Firmware Engineer to develop firmware that bridges a sensor-based physical product with an existing IC and PCB board. · ...

We are seeking an experienced IoT firmware and hardware developer for designing a sensor board to measure temperature and humidity using nrf52840 mcu. · The firmware must read sensors temperature, humidity and pressure at regular intervals. · The board must be battery operated an ...

A PCB designer is needed to develop an environmental sensor using specific components for BLE communication, memory storage and data collection. · nRF52832 for BLE communication · 8MB flash memory to record data · ...

The project involves building an AI-powered running tracker that clips to a runner's shoe. · Firmware Responsibilities (V1 Scope)Core Bring-Up & StabilityMCU initialization · Sensor bus setup (I²C / SPI) · Reliable IMU, barometer, and temp reads · Stable boot + watchdog-safe beha ...

I am seeking an experienced Android developer to build a fixed-scope pilot application for a sensor-based balance and mobility assessment system used in a clinical (physical therapy / medical) environment. · ...

We are developing a small, fashion-forward BLE wearable device with a UV sensor designed to be worn as a stylish accessory keychain charm. We need an experienced PCB designer to create a compact low-power board. · ...

We are building a compact BLE wearable UV sensor device (accessory/keychain form factor, · ~30mm target size). We need an experienced firmware engineer to migrate our existing PoC firmware · and optimize for ultra-low-power operation. · Nordic nRF54L or nRF52/nRF53 series firmwar ...

This is a Work-for-Hire agreement for developing an AR aiming system using Unity and NRSDK. · Integration of IMU sensor with XREAL Air 2 Pro glasses via Android processing hub. · ...

We are seeking an experienced hardware engineer to design a low-power, battery-powered ESP32 PCB for a BLE sensor device. · This is a hardware-only role. Firmware will be handled separately. · ...

Update a small PCB wearable project. · Main goal is to reduce the pcb size while maintaining main functionality - reading IMU data and sending via BLE.Removing barometer and ToF sensor from the boardDecreasing the PCB size and making a circleSwitching from Xiao Ble (nRF52840) to ...

We are building a new smart home device and need a skilled firmware developer.You will architect and write the core firmware for an ESP32-based product, focusing on connectivity, power management, and sensor integration. · ...

This is a reliability-first project with the goal of creating an iPad boxing telemetry HUD from up to 6 BLE sensors. · ...

We're building a wearable impact sensor using nrf52840 and zephyr / nrf connect sdk. · For this mvp phase we need a senior embedded developer to review and extend the existing firmware. ...

We are seeking an experienced Embedded Firmware Engineer to develop firmware for the XIAO nRF52840 Sense. · ...

We are seeking an experienced Firmware Engineer to lead the development of embedded software for next-generation industrial IoT systems. · ...

I'm seeking an experienced developer with BLE (Bluetooth Low Energy) and medical device integration expertise for a prototype system. · Device integration (USB/Serial/Bluetooth) · Real-time data capture and sync · ...