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我正在为 SN7037 系列单片机准备量产，现阶段需要一套完整、可复制的固件烧录方案，用于在产线快速、稳定地写入与校验程序。 任务范围 • 目标仅限固件烧录（单片机级别），不涉及电路板或芯片封装改动。 • 提供一条从 PC 端到烧录治具/下载线的全链路解决方案，支持批量烧录、自动校验与失败重试。 • 协议或接口可灵活采用（UART、SWD、USB 等皆可），以实际效率和可靠性为准。 • 交付包含可执行烧录工具、脚本或 GUI，配套驱动与详细使用文档；如需定制 Bootloader，请同时交付源代码。 验收标准 1. 在连续 50 片以上实物测试中，写入-校验成功率达到 100%。 2. 烧录总时长、通信波特率及校验方式等关键参数在报告中列明，可复现。 3. 所有工具与代码无加密锁，可二次使用与维护。 如你已掌握 SN7037 或类似 8051 内核 MCU 的烧录经验，请直接说明可行技术路径、预计周期，以及需我方配合的具体信息（原理图、Firmware .bin 等）。期待与你高效对接，把这条烧录流程一次性打磨到位。

I’m working with a Diode Laser Board and I need a custom receiver that can plug into that setup, track the machine’s positioning in real time, and instantly flag any faults it detects. The idea is to have continuous monitoring so I can see where the laser head is at any moment and receive automatic alerts if something drifts out of spec or a component misbehaves. Ideally, the receiver will take positioning data straight from the board, process it with minimal latency, and expose a simple interface—serial, USB, or another protocol you recommend—so the data can be displayed live on a host PC or microcontroller dashboard. Reliability is critical, so built-in error detection should cover signal integrity, unexpected motion, and any other obvious fault conditions you id...

Job Title: Experienced Hardware Engineer – Custom Embedded Linux IoT/Controller Hardware (Prototype) We are looking for an experienced Hardware & PCB Engineer to design a prototype expansion module/accessory for an interactive game controller environment. The device will be a high-performance, ultra-low-power embedded board featuring wireless connectivity (Bluetooth & Wi-Fi) and a 6-axis Accelerometer/Gyroscope (IMU) motion-tracking sensor suite. The target architecture is based on an Embedded Linux platform (ARM/SoC/SoM) with a heavy engineering focus on battery power optimization and custom power management circuits. Your main responsibility will be board-level schematic design, multi-layer PCB layout, component selection, and preparing production-ready manufacturing files ...

Objective: The goal is to design and develop functional prototype AFE(Analog Front End)/pulser-receiver system that can directly interface with any raw underwater transducer (200KHz to 1MHz) and deliver full echo-profile data to a Raspberry Pi. Description: I am looking for an experienced analog electronics / ultrasonic / sonar engineer to design and develop (physical device) a custom electronics board (AFE) to interface with a raw underwater ultrasonic transducer. The board will interface directly with a raw piezoelectric ultrasonic transducer and provide the complete transmit and receive signal chain. The transducer we are using is: The basic architecture is: Piezoelectric Ultrasonic Transducer ↔ TX/RX Front End ↔ ADC ↔ Raspberry Pi / Processor Required Electronics The...

I'm looking for a skilled developer to create a robot arm controlled by hand gestures. The arm's movement will be facilitated using Arduino, gyro sensors, and flex sensors. Key Requirements: - Wired control mechanism - Moderate precision and responsiveness - Primary build material: cardboard The system should involve: - Gyro sensors to detect hand rotation for base and shoulder movement. - Flex sensors to detect finger bending for elbow and gripper movements. - Arduino to process signals and control 4 servos. Ideal Skills and Experience: - Proficiency in Arduino programming - Experience with gyro and flex sensors - Background in robotics and servo control - Strong problem-solving skills - Ability to work with cardboard and design functional prototypes Looking forward to your...

# TECHNICAL REQUIREMENTS ## VHF SAME Receiver and AFSK/FSK Demodulator **Document:** RT-RF-SAME-001 **Revision:** 1.1 **Application:** EAS-SAME/SASMEX Signal Receiver **Target Frequency:** 162.425 MHz **Operating Band:** 162.400–162.550 MHz --- ## 1. OBJECTIVE Design and develop an electronic module capable of receiving the VHF signal at **162.425 MHz**, demodulating the NFM transmission, recovering the baseband signal, and demodulating the **AFSK/FSK data used by SAME (Specific Area Message Encoding)**. The module shall cover the complete signal chain: **Antenna/RF Input → RF Filtering → VHF Receiver → NFM Demodulation → Baseband Conditioning → AFSK/FSK Demodulation → Digital DATA_OUT** The final output shall be ready for connection to an extern...

I need a concise, production-ready program written in WPLSoft for a Delta DVP-series PLC. The sole objective is to automate a manufacturing process that is currently handled manually, so the logic must cover all machine sequences, safety interlocks, start/stop routines, and alarm handling. You will receive a full I/O list, basic wiring diagram, and the intended sequence of operations the moment we start. Your task is to translate that sequence into ladder logic (or sequential function chart if you prefer) inside WPLSoft, simulate it to prove the timing, and then provide the downloadable .DVP project along with a brief commissioning guide so my on-site technician can load, test, and fine-tune it. Key expectations • Program must be created in WPLSoft and match the Delta DVP comm...

I'm seeking an experienced PLC programmer to develop a program for Automation Direct PLCs. The primary task of this program will be motor control, essential for our machine control operations. Key Requirements: - Expertise in Automation Direct PLCs - Proficient in motor control programming - Experience in industrial automation, specifically in machine control contexts Ideal Skills and Experience: - Strong background in PLC programming - Familiarity with Automation Direct software and hardware - Previous projects involving similar motor control tasks Please provide samples of related work and a brief outline of your approach. Looking forward to your bids!

I need a skilled programmer to develop product in (Mindmotion, HOLTEX). Key Requirements: - Program PIC microcontrollers - Ensure reliablity - Collaborate on system integration Ideal Skills: - Expertise in programming - Experience - Strong background in wireless communication systems

I need a Verilog-HDL RAM module that meets an already defined specification. The core requirement is a synchronous memory unit with reliable read/write control. Beginning from the RTL, I want clean, synthesizable code, followed by a self-checking testbench that proves functional correctness across corner cases. Your workflow should include: • RTL implementation of the RAM with parameterised depth and width • A functional testbench that drives realistic stimuli and automatically flags mismatches • Simulation runs in ModelSim or an equivalent simulator, with waveform capture for review • Iterative debugging until the waveforms reflect the expected behaviour • Concise documentation explaining interface signals, timing, and any design decisions Address decodi...

ESP32 Robot Arm + Camera with AI Integration Project Type: Fixed Price Development Budget: $1,500–$2,500 USD Target Timeline: 3–6 weeks after receiving hardware Project Overview I am looking for an experienced ESP32/robotics developer to build a plug-and-play control system connecting: Pre-assembled Hiwonder XArm 1S robotic arm Seeed Studio ESP32-S3 Sense camera Windows 10/11 PC AI/LLM running on the PC The basic architecture is: User Instruction → AI/LLM → Windows PC Server/API → Robot Arm + Camera The AI should be able to receive natural-language instructions, request camera snapshots, analyze images, issue commands to the robot, and receive status/feedback. The intended workflow is: Observe → Decide → Act → Verify → Repeat The goa...

Request for a Custom Pre-Configured CAN/CAN-FD Gateway for EV BMS Development and Testing I would like to request a quotation for a complete, standalone CAN/CAN-FD gateway system. I am looking for a device that can be connected between the vehicle and the OBD connector using an OBD interposer, and that can operate independently without a PC using pre-loaded configurations. The main purpose of the system is development and testing of battery/BMS CAN communication in electric vehicles. The vehicles I would like to support are: * Tesla Model 3 * Tesla Model Y * Kia e-Niro * Hyundai Kona Electric * Volkswagen ID.3 * Volkswagen ID.4 I will provide the exact model years for each vehicle at the beginning of the project. Required functionality * At least 2 independent CAN/CAN-FD channels *...

I'm looking for a developer to create a simple, three-level game inspired by Angry Birds. Key Requirements: - The game should be designed for Raspberry Pi. - It needs to have a cartoonish art style. - The game will be controlled using a game controller. - At the end of the game, based on the player's score, the game should send pulse-mode commands from the Raspberry Pi to another hardware component. Ideal Skills and Experience: - Experience with game development on Raspberry Pi. - Proficiency in cartoonish graphics design. - Familiarity with game controller input handling. - Knowledge in programming pulse-mode commands. Please share your relevant experience and approach.

Preciso desenvolver uma placa eletrônica que atue como módulo de distribuição de potência (PDM) para um novo protótipo automotivo. O foco é disponibilizar canais de acionamento de cargas de 12 V, protegidos por drivers adequados, e garantir comunicação plena pela rede CAN do veículo. O que espero receber: • Esquemático completo com componentes automotivos (drivers high-side/low-side, proteção contra inversão de polaridade, filtro EMC). • Layout da PCB em camadas apropriadas para ambientes veiculares, com trilhas dimensionadas para até 30 A nos canais principais. • Arquivos Gerber, BOM detalhada e arquivo de pick-and-place. • Firmware de demonstração simp...

Necesito un modelo funcional en TinkerCAD que represente una estación automatizada de control de nivel de tanque. El sistema debe: • Utilizar un sensor de presión para leer el nivel. • Activar un relevador que encienda una bomba (motor) cuando el nivel baje del umbral configurado. • Mostrar el estado mediante un LED RGB: rojo cuando la bomba está activa, azul cuando está inactiva y verde cuando el nivel se encuentra dentro del rango deseado (modo espera). Entrego el umbral inicial, pero quiero que quede documentado dónde ajustarlo en el código Arduino. El proyecto final debe incluir: 1. Esquema de cableado completo y limpio dentro de TinkerCAD. 2. Código Arduino claramente comentado. 3. Enlace público al c...

I am building a small-scale oil-handling package and need a Siemens PLC program that keeps product moving efficiently while making sure tanks never run dry. The core of the job is to write, test, and document logic that optimises flow, pulls accurate readings from our flow sensors and low-level sensor, and then drives the valves, pumps, and any other actuators that respond to those readings. Everything must tie neatly into the HMI; I’d like operators to have both a touchscreen view and a secondary PC or hard-key option so they can work comfortably from the panel or the control room. The system’s sole purpose is process optimisation, so response time and deterministic behaviour are critical. I am already committed to Siemens hardware (S7-1200 series with a basic comfort panel) ...

# Projektbeschreibung – „Protocol“ ## Projektübersicht **Protocol** ist ein Multiplayer-Social-Deduction-Spiel für PC, das Elemente eines taktischen Shooters mit einem Rollen- und Täuschungssystem kombiniert. Das Grundprinzip orientiert sich an Spielen wie **Trouble in Terrorist Town (TTT)** und **Among Us**, soll spielerisch und visuell jedoch stärker in Richtung eines modernen Third-Person-Shooters gehen. Das Spiel wird mit **Unreal Engine 5** entwickelt. ## Grundidee Mehrere Spieler befinden sich gemeinsam auf einer Map. Zu Beginn einer Runde kennen die Spieler ihre Rollen noch nicht. Nach ungefähr **15 Sekunden** werden die Rollen zufällig verteilt: * **Innocent** * **Traitor** * **Detective** – nur bei ausreichend groß...

I’m building an industrial-grade robotic setup and need a sharp embedded-systems mind to move the control electronics from concept to reliable hardware-in-the-loop operation. The work centres on firmware that drives motors, interprets sensor data and communicates over CAN bus or OBD-II–style diagnostics. Most of the prototyping will happen on Arduino or ESP32 boards before we freeze the design onto a custom PCB, so familiarity with Altium Designer or KiCad for schematic capture and layout is essential. Here’s how I see the collaboration flowing: • Translate high-level motion requirements into C/C++ firmware with clean, well-commented code. • Select, integrate and tune motor drivers, encoders and safety interlocks so the robot meets industrial-speed repeatab...

I have an Allen-Bradley CompactLogix processor installed at my facility in Ridgefield, NJ 07657 and I need a ladder-logic program that fully automates our conveyor line system. The goal is straightforward: once the operator presses START the line should sequence itself, react to its sensors, and shut down safely on faults or an E-Stop, all while remaining easy to troubleshoot. Hardware and software already on hand: 1- allen bradley 5069 l330er • CompactLogix controller with standard 24 V DC I/O cards • A mix of photo-eyes, limit switches and VFD-driven motors • Studio 5000 Logix Designer for programming What I expect from you • A clean, well-commented .ACD project file written in ladder logic • Tag database and I/O map that match my wiring • Brief...

More details: What type of electrical project do you need a cost estimation for? Commercial What information should successful freelancers include in their application? Past work What specific aspects of the commercial project do you need cost estimation for? Full class B cost estimation

I have a Particle Boron and want it turned into a small proof-of-concept that watches two reed switches and a single split-core current transformer. Whenever either switch changes state or the CT reports a reading outside user-defined limits, the Boron should push an SMS straight to my phone. Please build the firmware, wire the sensors, and set up the cellular messaging so the text includes three key pieces of information whenever a condition is met: the live state of each reed switch, the measured current, and a timestamp noting when the limit was crossed. I also need your guidance in deciding the actual thresholds for both the switches and the current transformer, so factor parameter-setting into the workflow. A concise wiring diagram, commented source code ready for Device OS, and a q...

I have a piezo-based wet/dry sensor concept that relies on tracking resonance changes in a PZT ceramic between 20 kHz and 500 kHz. When the tip is in air the vibration is high-Q with a large voltage swing; when any liquid covers it the amplitude drops, the Q-factor falls, and both phase and resonant frequency shift. I now need an electronics specialist who can turn this working principle into a repeatable, field-ready solution. The job covers selecting the drive topology, designing the analog front-end, and implementing a small digital section that continuously excites the ceramic, samples the returning signal, and decides “wet” or “dry” in real time. Accuracy, low noise, and robust thresholding against temperature or viscosity changes are essential. Delive...

I have a Particle Boron and want it turned into a small proof-of-concept that watches two reed switches and a single split-core current transformer. Whenever either switch changes state or the CT reports a reading outside user-defined limits, the Boron should push an SMS straight to my phone. Please build the firmware, wire the sensors, and set up the cellular messaging so the text includes three key pieces of information whenever a condition is met: the live state of each reed switch, the measured current, and a timestamp noting when the limit was crossed. I also need your guidance in deciding the actual thresholds for both the switches and the current transformer, so factor parameter-setting into the workflow. A concise wiring diagram, commented source code ready for Device OS, and a q...

I need a skilled PLC programmer to develop a control system for an oil project. The PLC will be a Siemens model and will handle flow control and low-level sensing. Key Requirements: - Flow control management - Low-level sensor integration - Interface with sensors, actuators, and HMI Ideal Skills and Experience: - Proficiency in Siemens PLC programming - Experience with flow control and sensor integration - Familiarity with HMI and actuator interfacing Please provide relevant experience in your bids.

Hi,I am building the DefendX Tactical Smartwatch. I need an expert hardware engineer to design the board completely from scratch—starting with component selection and schematics, all the way through 4-layer PCB layout and physical lab testing. Project Requirements (42×42 mm, 4-Layer Board): Core: ESP32-S3 (Compact module like the MINI series). Radios: Wi-Fi/BLE, Sub-GHz LoRa (e.g., SX1262), and GPS (e.g., SIM68M). Sensors: Biometrics (HR/SpO2 + Temp) placed wrist-facing on the bottom layer, plus a 9-axis IMU and Compass. Power & Storage: LiPo battery management (with a central cutout pocket on the PCB for the battery) and SPI NOR Flash. Your Scope of Work: BOM Selection: Pick reliable components that are actively in stock at JLCPCB/LCSC. Schematics: Design the ...

I’m bringing an MLX90614 infrared temperature sensor into an ESP32-based design and need a clean, ready-to-flash solution that covers three essentials: accurate temperature readings, an immediate on-screen display, and reliable data logging. The job breaks down into two parts. First, document the wiring so I can reproduce it quickly—pin map, I²C pull-ups, and power considerations for the 3 V rail. Second, supply well-commented Arduino-compatible code (ESP-IDF is fine if you prefer) that: • polls the MLX90614 at a reasonable interval • streams both object and ambient temperatures to the Serial Monitor (or an OLED/Nextion screen if you think that’s cleaner) • stores each reading with a time stamp to SPIFFS or a micro-SD card—your call, as l...

I have a junior engineer building the early schematics for an asset-intelligence prototype and I need an experienced embedded-systems specialist to guide the hardware design, write the firmware, and get the first units reliably streaming data to the cloud. The boards must interface with temperature, pressure and motion and more sensors, carry out real-time analysis, perform basic filtering, then aggregate and compress the packets before they leave the device. Security on the wire is non-negotiable, so please be comfortable implementing encrypted transport and key management on resource-constrained MCUs. You will collaborate directly with us on: • Selecting the optimal MCU / wireless stack and finalising the schematic • Integrating the three sensor types and validating their ...

I need robust, well-documented firmware that lets an ESP8266 on the Arduino platform both send and receive infrared commands for multiple air-conditioner remotes. Serial command-line interaction over USB or Telnet is all that’s required; no web or mobile interface is necessary. Core tasks • Build or adapt an Arduino-compatible sketch that scans incoming IR frames, decodes them, and logs the raw timing as well as the decoded protocol and data. • Implement a complementary routine that allows me to replay captured frames or craft new ones from the command line, then transmit them through an IR LED with correct carrier frequency and timing precision. • Structure the code so adding or tweaking protocols is straightforward—I will be experimenting with a variet...

I need a full EasyEDA project—schematic and routed PCB—for a tiny Atmega32U4 board that lets a computer drive a single external LED through a 3-pin XH-JST connector (GND / 5 V / LED). The board must talk and be programmable over a horizontal USB-C port and should remain as small as practical without sacrificing good layout practice. Core requirements • EasyEDA schematic using the Atmega32U4, including crystal or resonator, USB-C E-Markers (where needed), ESD protection, boot-cap circuitry and the standard reset network. • Break-out to one XH-JST-3 plug clearly silkscreened with the GND, +5 V and LED symbols. • Primary power supplied by USB-C 5 V rail. • Firmware that gives basic functionality: detect USB power, expose the MCU as a simple USB HID to ...

I need an electrical engineer to build a working prototype for a cooling and heating system. The prototype requires microcontrollers and sensors. Ideal Skills and Experience: - Expertise in circuit design - Experience with microcontrollers and sensor integration - Background in developing heating and cooling control systems - Ability to build and test prototypes Please provide examples of similar work and relevant qualifications.

I aim to develop a solution that will facilitate data communication between an Arduino UNO and a SIM7600E using AT+COMMAND. The primary data in focus will be temperature sensor readings. Key Responsibilities: - Setting up a reliable connection between Arduino UNO and SIM7600E - Implement AT+COMMAND for effective communication - Design a protocol for transmitting temperature sensor data Ideal Skills: - Solid knowledge of Arduino - Proficiency in handling SIM7600E - Experience in implementing AT+COMMAND - Understanding of sensor data transmissions. Please ensure you can efficiently deliver on these requirements, and provide the mentioned sensor data communication before placing your bid.