Prelucrarea semnalelor Jobs

I need a complete high-frequency RF PCB laid out in KiCad for a signal-processing application. The board must integrate antennas directly on the substrate; no filters or discrete amplifiers are planned at this stage, so every trace, via, and ground return has to be optimized for clean, low-loss feed to the antenna structure. Scope • Translate my existing schematic (KiCad format) into a production-ready multilayer layout. • Model and route all RF paths with controlled impedance, proper stack-up definition, and tight clearance to meet high-frequency performance targets. • Design and tune the on-board antenna geometry, matching network, and keep-out regions inside KiCad’s PCB editor and 3D viewer. • Run DRC, ERC, and any KiCad integrated RF simulation tools ...

Seeking layout engineer with experience in Altium, low noise analog circuitry, and EMI mitigation. This project encompasses minor updates to an existing board which has already passed EMI testing. There may or may not be a desire to further reduce emissions, but the main focus is signal processing updates.

I need a local technician near North Bay, Ontario, who already works comfortably with the Siemens SiPART DR24 controller to verify every field-to-board and board-to-board connection and every component on one unit that is giving intermittent faults. The focus is on connection and component testing rather than functional or algorithm checks; I want confirmation that every terminal, ribbon, plug, and socket is carrying the right signal with no unexpected resistance, shorts, or breaks, and that every component is functioning as it should. Please arrive with your own calibrated scopes, continuity meters, breakout adapters, or any other diagnostic tools you normally rely on for this class of industrial controller. Once on site you will trace and test each connection, document the readings in a...

I have an industrial automation setup that needs to be driven entirely from LabVIEW. The core of the job is to integrate my DAQ devices with custom LabVIEW code so the line can run hands-free and generate reliable data. Here is what I need from you: • Data acquisition & processing – configure the DAQ hardware, create robust VI’s for continuous logging, and implement on-the-fly filtering so the raw signals become clean, time-stamped datasets. • Control system design – build closed-loop control logic inside LabVIEW, complete with PID tuning where required, to keep temperature, pressure, and motor speeds within setpoints. • Equipment calibration & testing – script automated calibration routines for each channel on the DAQ, produce verificatio...

I have an NXP 595-based concept that has to fit into an 18 mm footprint and be reproduced on twelve identical boards. The boards are for development and testing, yet I need production-grade documentation so I can send the files straight to fabrication and assembly without extra rework. Core requirements • High-integration layout that combines power management, signal processing and data communication on the same tiny PCB • Clean, EMI-conscious routing to keep signals reliable despite the tight real estate • All design files delivered in a mainstream ECAD package (Altium Designer, KiCad or similar) along with manufacturing outputs Deliverables 1. Complete schematic with component libraries 2. PCB layout and 3D step model in the agreed tool 3. Gerber and drill fi...

I already have a universal BLDC ceiling-fan driver PCB running perfectly from mains power; what it lacks is an Arduino brain. My goal is to plug an Arduino (Uno, Nano, or whichever you prefer) into the existing driver so I can: • adjust fan speed across its full range, • reverse the direction on command, and • set on/off timers, all through a small set of physical push-buttons mounted near the fan. What I need from you is a clean, well-commented sketch plus a minimal wiring diagram that shows exactly where every button, resistor, and logic-level signal ties into the driver board. If any level-shifting, opto-isolation, or triac/FET gating is required, please spell that out and include the component values. Debounced button handling and non-blocking timer logic (e.g., u...

I’m building a proof-of-concept noise-reduction module destined for consumer-grade electronics. My priority is an electronic schematic that delivers two core capabilities: active noise cancellation and echo reduction. The circuit must be small enough to embed in another typical product that will be mentioned later on as the project develops. Here’s the flow I have in mind. First, we collaborate on the signal-processing topology—feed-forward, feedback, or hybrid—then translate it into a detailed schematic and PCB layout (Altium, KiCad, or your preferred EDA). Once the draft design is ready, I’ll need simulations or bench measurements that prove at least 20 dB attenuation in the 50 Hz–2 kHz band while holding latency under 10 ms; please include SPICE plot...

I need a Simulink model that lets me design and test a full state-space control system in both continuous-time and discrete-time forms. The goal is to compare the two implementations side by side inside the same project so I can evaluate performance, stability margins, and implementation effort before moving to hardware. I will provide the plant dynamics and desired performance indices as soon as we start. From there, I’d like you to: • Build the continuous-time state-space controller in Simulink, organised with clear subsystems for A, B, C, D matrices and any pre-compensators or observers you feel are appropriate. • Create the matching discrete-time version (sample time will be specified) and place it in a parallel branch of the model for direct simulation comparison. ...

I need assistance with optimizing and designing a PCB for a water treatment system. I have all the necessary components, including: - TDS sensors - Pressure sensors - Flow sensors - Relays - Float switch - Solenoid valve The ideal freelancer should have experience in: - PCB design - Component optimization - Working with water treatment systems Please provide a printable PCB design for the finished product.

I am setting up a brand-new free-to-air satellite television channel in Sri Lanka and need an expert team to guide me from concept to the first live broadcast. The support I’m looking for covers both the technical build-out and the full spectrum of regulatory paperwork required here. On the technical side, you will handle all equipment procurement advice, rack-room design, earth-station and uplink installation, and the end-to-end software/system integration that ties playout, automation, MCR, and OTT back-ups together. Once the signal chain is proven from studio to satellite, you will hand over a fully documented, on-air facility; ongoing maintenance can be a separate discussion after launch. Equally important is navigating Sri Lanka’s broadcasting framework. I need hands-on ...

# NFC Design Requirements ## 1. Basic Requirements * **NFC Frequency:** 13.56 MHz * **NFC IC Supply:** 3.3 V * **NFC IC:** NXP NFC IC * **Host MCU:** ESP32 / selected MCU * **Communication:** I²C * **Antenna:** PCB loop antenna * **Target NFC Range:** 20–30 mm * **PCB:** 2-layer PCB preferred * **Operating Temperature:** -20°C to +70°C ## 2. NFC Antenna * PCB antenna shall be designed for **13.56 MHz**. * Antenna dimensions shall be optimized based on available PCB space. * Keep ground copper away from the antenna area. * Keep battery and other metal objects away from the antenna where possible. * Antenna matching components shall be provided for tuning. ## 3. Power * NFC IC supply: **3.3 V** * Provide local decoupling capacitors near the NFC IC. * NFC supply shall...

I’m building a compact IoT board that can collect sensor data, push it wirelessly to the cloud, and drive simple actuators—all on one reliable PCB. At the heart of the design I need a low-power microcontroller paired with the necessary sensors; wireless connectivity (Wi-Fi, Bluetooth or whichever protocol you recommend) will complete the link to the outside world. Here’s what I expect you to deliver: • Schematic and PCB layout files (Altium, KiCad, or similar) • Optimised BoM with readily available parts • Gerbers, pick-and-place, and fabrication notes • Basic firmware pin-map to confirm that the microcontroller, sensors, and control lines are correctly routed Please send a concise but detailed project proposal that shows how you’ll hit...