Firmware Development Jobs

Hello, I am looking for an experienced electronics/PCB engineer to design a compact production-ready PCB. This is a redesign of a previous project, so manufacturability, component selection, reliability and proper engineering are particularly important. Main requirements The PCB must include: * ESP32 with Zigbee / Thread / Matter support * Wi-Fi support is mandatory. * Bluetooth support is mandatory. * The selected ESP32 must provide sufficient RAM and flash memory with reasonable headroom for the networking stacks and our application firmware. * ESP32-C6 may be considered, but the designer may propose a more suitable Espressif device if technically justified. * The final MCU/module selection must be agreed before PCB layout. * USB-C port * Used for firmware pr...

Request for Proposals (RFP) / Freelance Job Specification: Custom Bipedal Humanoid Platform Role Type: Contract / Freelance (Full-system or Module-specific) Location: Remote (Hardware prototyping local or shipped) Engagement: Milestone-based contract 1. Project Overview We are designing and fabricating a custom open-architecture bipedal humanoid robot. The goal is to build a functional, anthropomorphic platform capable of dynamic balance, stable bipedal locomotion, and compliant interaction. Because building a complete humanoid spans multiple disciplines, we are hiring specialized engineers and domain experts. Applicants may bid on the full lifecycle or submit proposals for individual tracks aligned with their core expertise. 2. Specialized Tracks & Scope of Work Track A: Mechanical En...

I’m looking for an electronics / embedded hardware engineer to help turn an existing PI/TDEM hardware design into a working, bench-tested prototype. The project is already substantially developed. I already have the engineering architecture, circuit concepts, component work, connection details, timing approach, and implementation planning. This is not a design-from-scratch project. I mainly need someone who can: - review the existing engineering package only as needed for implementation; - complete or correct schematic/PCB work where necessary; - prepare manufacturing files and BOM; - work with STM32 firmware and ADC acquisition; - handle pulsed MOSFET / inductive coil hardware; - assemble and bring up the prototype; - perform oscilloscope and LCR measurements; - debug the electronic...

# Custom Industrial PLC Hardware & Firmware Development We are looking for an experienced **Embedded Systems / Industrial Electronics Engineer** to design and develop a custom industrial PLC/controller suitable for real industrial environments. The objective is to develop a reliable, professional, manufacturable controller based on a custom PCB, not a hobby-level Arduino or development-board solution. The engineer should have strong experience in industrial electronics, embedded firmware, PCB design, EMC/ESD protection, industrial communications, and microcontroller-based control systems. ## Project Objective Develop a compact industrial PLC/controller capable of handling digital and analog I/O, industrial communications, machine-control logic, and optional IoT connectivity. The ...

The goal is to wire every layer of a new pair of smart glasses—from the on-board sensors right through to an Android companion app—so that the device behaves like a polished, consumer-ready product. Hardware & low-level work • Pair, stream and reconnect reliably over Bluetooth Low Energy while also supporting high-bandwidth features across Wi-Fi sockets. • Drive the critical modules selected for this build: the camera, IMU sensors, plus the speakers and microphones. • Optimise power draw, heat and battery life; handle sleep / wake cycles intelligently. Middleware • Integrate the OEM SDK, which exposes Android libraries first, and bridge any native C/C++ portions that sit beneath those Kotlin/Java calls. • Build or adapt media pipelines f...

Embedded Systems / Firmware Engineer Project Description HappyMat(TM) is seeking an experienced Embedded Systems / Firmware Engineer for HappyMat Prototype #1. You will be responsible for the prototype's embedded controller, firmware, sensor integration, LED control, digital display, wireless communications, and associated hardware/firmware integration. Primary Responsibilities • Develop and configure the embedded controller and firmware. • Integrate pressure/presence sensing. • Integrate addressable LED lighting. • Integrate the digital display. • Implement Wi-Fi connectivity. • Implement Bluetooth/BLE connectivity. • Support camera, speaker, and microphone integration. • Coordinate with the IoT/interface engineer where applicable. • Tr...

I have a Yale electric rim lock already installed and I want to take it a step further by adding three parallel ways to open it: a keypad PIN, an RFID tag/card, and a biometric fingerprint reader. The main driver is day-to-day convenience for family and frequent visitors—no more fumbling for physical keys—so the solution has to be fast, reliable, and easy to maintain. Here’s the scope in practical terms. I need a compact control module—Arduino, ESP32, or any other microcontroller you feel best fits—wired to the Yale lock’s strike mechanism. It must read all three credentials, decide locally, then trigger the solenoid without noticeable lag. A small OLED or LED feedback indicator and a relay or MOSFET driver for the lock should be part of the circuit. Po...

I have an existing advanced mechatronics prototype that was paused during development. I am looking for a senior hands-on engineer to review the current work, complete system integration, troubleshoot remaining issues, and bring the prototype to a stable, test-ready stage. The project combines: • Electromechanical components • High-current power electronics • STM32-based embedded control • Closed-loop/PID control • Multiple sensors • Battery-powered systems • Mechanical structure and custom hardware The main work includes: • Reviewing the existing design and implementation • Integrating electronics, firmware, sensors and mechanical systems • Debugging STM32 firmware and control loops • Tuning PID and system response • Troubles...

Tôi đang phát triển một thiết bị AI điều khiển bằng giọng nói và cần một freelancer có kinh nghiệm về ESP32/IoT để làm prototype phần cứng đầu tiên. Thiết bị cần có: ESP32 / ESP32-S3 Micro thu âm Loa Wi-Fi LED báo trạng thái Nút bấm Nguồn USB Công việc: Tư vấn và lựa chọn linh kiện Lắp ráp prototype Lập trình firmware cơ bản Kiểm tra microphone, loa, Wi-Fi, LED và nút bấm Kết nối thử với server/API bên ngoài Bàn giao sơ đồ mạch, BOM và source code Lưu ý: Phần AI/ChatGPT, nhận diện giọng nói và chuyển văn bản thành giọng nói sẽ do một freelancer khác phụ trách. Prototype ban đầu có thể ...

I’m building a college prototype powered by one to four 18650 Li-ion cells (3.6 V-3.7 V nominal, 4.2 V full) and I need a compact, smart BMS board that I can drop straight in. The circuit must monitor each cell individually, balance them during charge, and guard the pack against over-voltage/under-voltage, over-current/short-circuit, and temperature events. All cell-level data has to reach an ESP32 or STM32; I’d like the primary interface to be I²C, though UART or SPI compatibility is welcome if it comes for free. Low quiescent current matters because the board will stay wired even when the system’s off. A clear register map or simple firmware hooks are essential so I can pull per-cell voltages, pack voltage, current, and thermistor readings inside my own code. ...

I have a wearable safety band prototype that must deliver reliable health monitoring, starting with continuous heart-rate tracking. Your task is twofold: write the embedded firmware that runs on the band and create the companion mobile application. On the firmware side, you will read the heart-rate sensor, filter and average the data, manage power, and broadcast everything over Bluetooth Low Energy. I will supply the full hardware schematic, sensor datasheets, and preferred MCU (nRF52 series) once we begin. For the software side, I need a user-friendly companion app that pairs with the band, shows real-time and historical heart-rate graphs, stores data locally, and syncs to a cloud back-end. It must be ready for both iOS and Android, so you can choose native (Swift / Kotlin) or a single ...

I have a wearable safety band prototype that must deliver reliable health monitoring, starting with continuous heart-rate tracking. Your task is twofold: write the embedded firmware that runs on the band and create the companion mobile application. On the firmware side, you will read the heart-rate sensor, filter and average the data, manage power, and broadcast everything over Bluetooth Low Energy. I will supply the full hardware schematic, sensor datasheets, and preferred MCU (nRF52 series) once we begin. For the software side, I need a user-friendly companion app that pairs with the band, shows real-time and historical heart-rate graphs, stores data locally, and syncs to a cloud back-end. It must be ready for both iOS and Android, so you can choose native (Swift / Kotlin) or a single ...

Looking for an experienced **ESP32/Embedded Systems developer** to build a compact Wi-Fi audio recorder prototype. The device should: - Use ESP32-S3 with a good-quality MEMS/I2S microphone - Start/stop recording using a physical button - Temporarily store recordings locally - Automatically upload recordings to our backend via Wi-Fi/HTTPS - Verify successful upload before deleting the local recording - Keep recordings and automatically retry if internet/upload fails - Support approximately 1–2 hour meetings - Use LED indicators for recording, uploading, success and errors - Produce clear audio suitable for AI transcription and speaker diarization Looking for someone experienced with **ESP32-S3, C/C++/ESP-IDF, I2S audio, MEMS microphones, Wi-Fi, REST APIs, SD/flash storage and IoT d...

Good Morning to make the understanding easy here is the Reference video to understand project requirements I’m refreshing the firmware that drives our portable Battery Management System and need someone who can both write low-level code and test the results on a physical iPhone. Let me explain what actually we require is a batch solution for iphone BMS that attach with battery. For example being a battery producer company in china we do require a solution that remove battery pop up message from iphone , do you know when new battery or another phone battery added into the phone there is a message come that this is not relevant so we do require to remove that , and we also require to make sure the BMS board older health data and battery cycle can be adjustable on a factory level sol...

I have an ESP32-WROOM module that must listen over Bluetooth to an existing third-party Android app and correctly understand the hexadecimal data it broadcasts. The job is to deliver rock-solid firmware that: • Opens a reliable Bluetooth (Classic or BLE—whichever you judge more stable for continuous streaming) serial link. • Receives every incoming packet from the app, parses the raw HEX string byte-by-byte, and exposes the interpreted values in a simple way (e.g., struct, JSON over serial, or clearly commented variables). • Includes clear in-code comments so I can expand the logic later if I decide to act on those values. I will load the code with Arduino IDE, so please keep the project compatible with that toolchain or provide a straightforward PlatformIO alter...

I need the ESP32 AAP / AAD modules on my bench to exchange CAN-Bus frames in real time, interpret the hexadecimal payload exactly, and act on it. The goal is rock-solid, low-latency control: existing equipment sends commands, the ESP32 must parse those hex words, understand the decimal meaning behind each bitfield, and instantly publish its own status frames back on the bus. All the original HEX files and CAN command tables are already in hand, together with a CAN tracer that shows traffic live. What is missing is the firmware that ties everything together, integrates those files, and implements reliable monitoring and status reporting over CAN. Deliverables • Fully documented ESP-IDF (or Arduino-ESP32 if you prefer) source code that: – Imports my supplied HEX files / calibr...