Altium nexus jobs
...prior experience with similar dual-MCU power electronics projects, please share a short example or code snippet when you respond. I look forward to collaborating with someone who can take this control stack all the way to the production line. This 3kW grid-connected single-phase photovoltaic inverter (TMS320F28035 control board + LCM1602 display board + STM32F103 power board) is designed with ALTIUM hardware schematics and PCB files, providing a complete design. Control board: Uses a TMS320F28035 DSP as the control core, implementing sampling circuits, IGBT drive circuits, communication circuits, etc.; 4-layer board design, size 110*60mm; Display board: Equipped with an LCM1602 display screen, 2-layer board design, size 109*79mm; Power board: Uses an STM32F103 microcontroller as...
...V 20 Ato 40 A DC/AC adapter, and high-current motor-driver channels for the four legs. Space is limited to roughly 200 mm × 160 mm, so component placement and thermal handling matter. Battery charging, voltage and current sensing, and protected power rails for the logic section should be built in. I’ll supply Reference schematics the moment we begin. Deliverables • Annotated schematic in Altium, KiCad, or Eagle • Complete, fabrication-ready Gerber/NC drill set plus pick-and-place files • Clean BOM with manufacturer part numbers and at least one in-stock distributor per item • Brief bring-up guide and test points called out on the silkscreen Acceptance Criteria The board must boot the MCU from external power or battery, report voltage...
...full schematic for this project is already complete; what I now need is a clean, manufacturing-ready board layout for a consumer-electronics product that will sit comfortably in the 10 cm – 20 cm range. All parts are surface-mount, so component placement, routing, and clearances must respect standard SMT design rules and good DFM practice for automated assembly. You will take my schematic file (Altium format, with PDF backup) and turn it into: • Optimised board outline that fits the target enclosure • Layer stack-up and controlled-impedance traces where required • Carefully arranged SMT footprints, silkscreen, and reference designators • Gerber, drill, pick-and-place, and centroid files ready for any mainstream PCB house • Updated BOM with...
...(LM2596), 3.3V (AMS1117), battery backup * Inputs: 3× CT + 3× PT (with protection & filtering) * Output: Relay-based MCCB trip (optocoupler isolated) * Extra: MPU6050 (I2C), LEDs, buttons, UART debug Key Design Points: * 4-layer PCB (GND + power planes) * Proper HV/LV isolation (8mm clearance) * EMI/EMC-friendly layout * RF layout for 4G antenna (50Ω) Deliverables: * PCB design files (KiCad/Altium/EasyEDA) * Gerber + BOM + Pick & Place * Ready for manufacturing Looking for: * Experience in industrial PCB design * Knowledge of power + RF + protection circuits Apply with: * Similar past work * Tool you use * Timeline & cost...
...placement, microstepping current paths) Acceptance criteria 1. Board footprint fits inside the provided DXF outline with all keep-out zones respected. 2. Stepper tests at 16-microstep mode run continuously for 30 min with no missed steps or audible resonance. 3. Wireless communication range remains equal to or better than the current prototype. I’m comfortable if you work in KiCad, Altium, or Eagle as long as the final deliverables are neutral-format files plus PDFs for quick review. If questions arise about power budgeting, EMI or thermal paths, you will have direct access to me and the mechanical designer so decisions are quick and data-driven. If crafting compact, low-noise boards around ESP32 and stepper drivers is your thing, I’d love to see how you ...
Proficiency with tools such as: - OECD QSAR Toolbox - DEREK Nexus - VEGA QSAR - Toxtree - Familiarity with IUCLID Seeking a highly skilled Scientific Manager – Computational Toxicologist to leads and manages computational toxicology projects and teams. Additional to support regulatory toxicology, ecotoxicology, in silico risk assessment, and non-animal testing strategies for agrochemicals, biocides, and industrial chemicals. This role will contribute to global regulatory submissions, data gap filling, and scientific innovation in predictive toxicology. •Develop and apply in-silico models (QSAR, read-across, SAR) for hazard assessment. •Support in regulatory dossiers using computational toxicology. •Conduct weight-of-evidence assessments and NAM-based strategie...
...drivers. • Accommodate the 1.68" screen, vibration motor, two servos and basic I/O while fitting within the current physical envelope. Key deliverables - Updated mechanical CAD (STEP + source files) showing the refined gear system and plunger carriage. - Manufacturing drawings and BOM for gears, shafts, bushings and any custom housings. - Complete PCB package: schematic, board layout (KiCad/Altium), fabrication Gerbers, pick-and-place, and annotated BOM. - Firmware or example code that exercises both plungers, the display and vibration motor. - A working prototype or documented assembly pack ready to send to my fabricator. Timeline I need the design files and a tested, functioning build no later than 10 July. I realise that is aggressive, so propose inte...
...maintenance-friendly and easy for a non-technical person to install between a tank and its pump or valve. Essential functions • Continuous water-level monitoring with stable, repeatable readings • Automated water control—start/stop a pump or valve at set thresholds • Reliable operation on batteries (no mains available) with sensible power-saving Deliverables 1. Schematic, PCB files (KiCad/Altium) and complete BOM 2. Embedded code (Arduino/ESP32-C, STM32, or similar) with annotations 3. 3D enclosure files (STEP/STL) ready for printing or injection moulding 4. A brief assembly and calibration guide 5. Video or live demo proving the prototype meets the stated functions I will cover prototype component costs once the design is locked. If you alread...
...cable while a vision camera streams live video, so every watt saved and every microsecond trimmed matters. Phase 1 – Mobile Unit I want the existing PCB completely re-laid to improve thermal behaviour, noise immunity and overall robustness. You will analyse the current board, then redesign it for cleaner power distribution, better signal integrity and easier field service. Schematics, PCB files (Altium or KiCad preferred), BOM and production-ready Gerbers are expected. Phase 2 – Control Box Inside the controller several separate boards handle power, comms and motor control. I need these consolidated into a single, more efficient assembly, or at least reduced in count, without losing any functionality. Your job is to review what I have, spot redundancy and propos...
...need clean, production-ready schematic diagrams that tie them all together. The core of the job is translating my functional requirements into well-documented circuitry that in-house team can follow without second-guessing pinouts, signal paths or power budgets. This is an interactive piano that plays audio files. You’re free to work in whichever design environment you’re most comfortable with—Altium, KiCad, Eagle, OrCAD, or any other professional tool—as long as the resulting files can be shared in their native format plus PDFs for quick reference. What I expect from you: • A complete, logically organised schematic showing every sensor, motor driver and LED segment with proper labels, net names and reference designators. • Clear notes on co...
...cooling features all fit together flawlessly. Your task covers everything from component selection and trace routing through to printable CAD models, with the RP2040’s pin-mapping and firmware headers fully accommodated. If you can suggest clever inter-module connectors, safety interlocks, or space-saving enclosure tricks, even better. Deliverables • Complete electrical schematics (KiCad or Altium) for welder, mixer, and extruder • Production-ready PCB Gerbers and BOMs • 3D CAD files (STEP preferred) that house the boards, motors, and any sensors or actuators • Brief integration notes so future modules can reuse the same power, communication, and mounting standards When you reply, show me similar mixed electro-mechanical projects you have shipp...
...(at least 1–2 revision cycles) * Verification that the design is electrically sound prior to delivery * Experience with ESP32, battery-powered devices, and LED drivers is strongly preferred --- **To Apply:** Please include: * Examples of similar completed PCB designs (especially compact or wearable devices) * Confirmation of experience with ESP32 or similar MCUs * Your design tools (EasyEDA, Altium, KiCad, etc.) * Estimated timeline and cost --- **Important:** This is not a beginner project. I am looking for a **professional-level result** that can be used for real-world production — not a partial or experimental design....
...remote-monitoring app that shows real-time data, issues alerts/notifications, and logs data with export capability. Any lightweight cross-platform stack is fine as long as setup is straightforward. • A clear wiring diagram that ties the MCU, power stage and peripheral sensors/actuators together, showing pin assignments and protection components. Acceptance criteria – BOM imports cleanly into Altium or Excel, no placeholders for the three highlighted power components. – Compiles on the current STM32CubeIDE without warnings. – App connects over standard 2.4 GHz Wi-Fi, displays live values, pushes a test alert, and produces a CSV or JSON export. – Diagram is legible in PDF and source format (SVG or native CAD). If you’ve built simil...
...design. A few essentials you’ll need to keep in mind • High-current copper pours and controlled impedance on the high-frequency side • Thoughtful component placement for airflow and thermal relief • Proper isolation between primary and secondary sections in line with safety standards • Clear test-point strategy so I can validate the assembled boards quickly I’m flexible on the CAD platform—Altium, KiCad, or Eagle are all acceptable so long as I receive editable source files. Deliverables • Editable PCB project file • Gerbers, drill files, and assembly outputs • Updated BOM with manufacturer part numbers • Brief layout notes highlighting critical design choices and expected thermal performance If you hav...
I have an optical‐sensing board that is already architected at block level and now needs to move fast into hardware. The immediate work spans three linked stages—schematic finalization, PCB layout, and hands-on prototype assembly—so I’m looking for someone comfortable seeing a mixed-signal design all the way from Altium (or KiCad) files to a powered-up bench unit. Key technical themes you will tackle include low-noise op-amp signal conditioning, LED driver sequencing, high-impedance multiplexer routing, and an STM32-class MCU front-end for ADC capture. Because the board is ultimately destined for a medical-device environment, meeting typical EMC/EMI compliance practices is a must; please factor this into component placement, ground strategy, stack-up, and filterin...
...need clean, production-ready schematic diagrams that tie them all together. The core of the job is translating my functional requirements into well-documented circuitry that in-house team can follow without second-guessing pinouts, signal paths or power budgets. This is an interactive piano that plays audio files. You’re free to work in whichever design environment you’re most comfortable with—Altium, KiCad, Eagle, OrCAD, or any other professional tool—as long as the resulting files can be shared in their native format plus PDFs for quick reference. What I expect from you: • A complete, logically organised schematic showing every sensor, motor driver and LED segment with proper labels, net names and reference designators. • Clear notes on co...
I have a dual-band RF switch already drafted in Altium that lets one shared antenna handle both 433 MHz (primary) and 470 MHz LoRaWAN links. Before moving on to the board, I need fresh expert eyes on the schematic. You will receive the design as a PDF export. I’m most concerned about three areas: • Signal switching accuracy – verify the detector logic reliably senses the 470 MHz burst and that insertion loss, isolation, and TX/RX paths stay within spec on both bands. • Component placement – confirm the RF switch IC, matching network, SAW filters and biasing parts are arranged to minimise parasitics and avoid crosstalk. • Power management – check the regulator choices, decoupling strategy, and any GPIO level-shifting that could introduce n...
Nexus Growth is scaling fast and I need a proven closer who can turn qualified, B2B prospects into signed clients for our high-value AI-powered chatbot solutions. Your core mandate is simple: expand our client base, with an immediate emphasis on retail and e-commerce companies that benefit most from 24/7 automated customer engagement and sales assistance. You will receive warm, pre-qualified leads sourced through our own outbound campaigns, marketing funnels, and partner referrals. From there, I expect you to: • Run consultative discovery calls that uncover pain points and map our chatbot ROI to each stakeholder’s goals. • Conduct tailored product demos (Zoom, Google Meet, or preferred platform) that highlight conversion lifts, reduced support costs, and rapid de...
...existing schematic for an industrial-grade board and turn it into fabrication-ready files. The design mixes SMD and through-hole parts, and it must stay within a double-layer stack-up. You’ll handle footprint assignment, component placement, routing, silkscreen, and all standard checks, then export a clean RS-274X Gerber set along with the NC drill file. I can provide the schematic in KiCad 7; Altium or Eagle are also fine as long as the final Gerbers import without error at JLCPCB. Typical constraints are 6 / 6 mil trace-to-space, 0.3 mm vias, and a board outline no larger than 200 × 150 mm. Deliverables • Complete Gerber files, mask, paste, silkscreen, and drill • Source project files • BOM generated from the design I’ll verify the out...
I need a complete design for a compact consumer-electronics board that revolves around a PIC microcontroller. The scope spans three tightly-linked parts: • PCB hardware – Produce the schematic and multilayer layout in Altium Designer, include all libraries you create, and deliver the full manufacturing package (Gerbers, drill files, pick-and-place, and a PDF schematic). • MCU firmware – Write well-commented code in MikroBasic (or another PIC-friendly tool if you justify the switch). The firmware must read multiple sensors, exchange data through an efficient serial protocol, and use smart power-saving modes to stretch battery life. Please supply project files, compiled HEX, and a short flashing guide. • PC interface – Build a Windows utility in VB.NE...
...protections and can ride-through brief outages without dropping critical loads. What I expect from you 1. Electrical architecture and block-level topology, including MPPT stage, bidirectional DC-DC for battery interface, and H-bridge or three-phase inverter bridge (we will finalise whether the output is single or three-phase once you review my site specs). 2. Complete schematic and PCB layout files (Altium preferred, Gerber + BOM mandatory). 3. Firmware source code for DSP/MCU (TI C2000, STM32, or your suggested controller) covering MPPT, battery management, grid-synchronised PWM, protection routines and data logging. 4. Thermal and efficiency simulations, plus EMC/EMI mitigation notes suitable for an industrial enclosure. 5. A concise commissioning guide and test plan s...
...Requirements: * Proper routing for STM32F103C8T6 microcontroller pins * Include required GPIO connections (I will provide details in schematic) * USB / UART / power pins must be correctly routed * Decoupling capacitors and power lines must follow best practices * Ensure stable 3.3V power distribution Requirements: * Experience with PCB design and routing * Familiar with EasyEDA (preferred), KiCad, or Altium Designer * Knowledge of JLCPCB rules and standards * Experience working with STM32-based designs is a plus * Ability to deliver clean and professional PCB layout Deliverables: * Fully routed PCB design * EasyEDA project file (editable) * Gerber files ready for JLCPCB manufacturing Budget: $20 (can increase for high-quality work) Deadline: 2 days Note: * I will provide ...
...reflect availability, thermal robustness, and cost-effectiveness; I will handle sourcing once the design is locked. Deliverables • Complete schematics of the RF stage, clearly annotated • Bill of materials with part numbers and key specifications • Brief design note explaining operating frequency selection, impedance-matching approach, and expected output power I work comfortably with Altium, KiCad, or EasyEDA files, so feel free to pick the tool you prefer as long as the output is shareable. Once we sign off on the schematic and BOM, I’ll spin the first prototype PCB in-house. If you can stay available for a quick review of layout-related questions, even better. Let me know your relevant experience with industrial RF power applications or similar ...
I need a compact PCB built around a Nordic Semiconductor SoC that will act as a self-contained IoT node. The key requirement is Thread connectivity, so plea...antenna configuration that give reliable range while keeping the overall bill of materials within the roughly 70 € target called out in the brief. Once the component set is frozen, you will capture the schematic, lay out the board for low-power operation, and deliver production-ready Gerber files along with a clean, costed BOM that meets EU sourcing availability. Deliverables • Schematic (Altium, KiCad or Eagle) • PCB layout & Gerbers • Costed BOM capped at ~70 € • Basic manufacturing notes (stack-up, drill table, assembly guidance) I am happy to answer questions quickly so yo...
...Acceptance criteria The prototype must: 1. Vary motor speed smoothly from 0 % to 100 % under a 24 V DC supply. 2. Deliver at least 10 A continuous with over-current and over-temperature protection kicking in gracefully. 3. Maintain speed within ±3 % under a 20 % load swing. 4. Pass a 12-hour burn-in at 40 °C without thermal shutdown. Please outline which CAD and simulation tools you prefer (Altium, KiCad, Eagle, LTspice, etc.), the control strategy you intend to use (PWM with MOSFET H-bridge, dedicated driver IC, micro-based PID, or another proven approach), and your typical lead time for prototype assembly. I’m ready to move quickly once we lock in the design path....
I am looking for an experienced PCB Designer/Hardware Engineer to design a custom power management board for a BLDC fan system with integrated battery backup. Key Functional Requirements: Battery System: 4S LiFePO4 (32140 cells, 3.2V nominal). Must include integrated BMS (B-, B1, B2, B3, B+) and a CC/CV charging circuit. AC Sensing: Use an Optocoupler (e.g., PC817) to sense 220V AC...connections. Inverter Logic: The inverter should stay in "Standby" until triggered by AC loss. Deliverables: Complete Schematic and PCB Layout (Gerber, BOM, and Pick-and-Place files). Component selection for high-voltage isolation (Creepage/Clearance standards). Thermal management strategy for the inverter MOSFETs. Required Skills: Power Electronics, AC-DC/DC-AC Conversion, LiFePO4 Charging, KiCad/...
...source or control algorithm flowchart for the DSP/MCU you recommend • Brief test plan outlining how I should verify efficiency, protections and grid-sync operation I will prototype locally, so clarity in documentation is crucial. If you have recent experience designing residential hybrid inverters or similar power-electronics projects, let me know the standards you designed to and the tools (Altium, KiCad, MATLAB/Simulink, etc.) you typically use....
...health-sensing components, low-energy wireless module for phone pairing, and a dedicated driver path for the haptic actuator. A multilayer PCB layout optimized for size, antenna performance, battery life, and ready for a standard SMT assembly line. Full manufacturing data (Gerbers/ODB++, pick-and-place, drill files), a clean BOM with active part numbers in supply, and the editable project file (Altium or KiCad preferred). Basic DFM and signal-integrity checks passed so the first prototype round goes smoothly. Specific Technical Requirements (based on v3 spec drawing attached): Enclosure target: 34mm × 34mm × 8mm 3-axis IMU sensor (LSM6DSO or BMI270 recommended) – must be placed perfectly central on the PCB for accurate posture detection. Ultra low-power BLE SOC ...
...new product in the works and need the Altium schematic polished so it is ready for a smooth hand-off to PCB layout and manufacturing. Even though this board is from scratch, the design is already evolving, so I know we will be: • Adding new components where functionality is still expanding • Changing existing connections as I refine signal flow and power distribution • Upgrading components when better-suited parts become available or supply-chain realities shift You’ll work directly in Altium Designer, delivering the editable .SchDoc file along with a neatly annotated PDF and an up-to-date BOM. Clear design notes inside the project are important so future iterations stay organized. If you have a solid track record creating production-ready ...
...BLE communication (device ↔ mobile app) * Real-time ECG data acquisition * Data packet transmission * Basic power management (sleep mode, battery monitoring) **4. Prototype Support** * Assist in debugging after PCB fabrication * Support 1–2 iteration cycles if required --- **Key Requirements:** * Experience with embedded systems (ESP32 or similar MCU) * Strong experience in PCB design tools (Altium / KiCad / Eagle) * Understanding of low-noise analog circuits (important for ECG) * Experience with BLE communication * Ability to work with real-time signal data --- **Highly Preferred:** * Experience in ECG / biomedical / wearable devices * Familiarity with ECG ICs (ADS1292 / ADS1298 or similar) * Experience building end-to-end embedded products --- **Deliverable...
...Communication: A transceiver chip (e.g., MAX485) and terminal block to communicate with legacy lab equipment. I2C / SPI Expansion: Standard headers (like Qwiic/STEMMA QT) so students can plug in temporary displays. Deliverables & Software Requirements: Software: The entire project must be designed natively in KiCad (latest stable version). Since this is for a university archive, we cannot accept Altium, Eagle, or EasyEDA files. Schematics & Layout: Optimized for thermal dissipation, signal integrity, and high/low voltage isolation. Manufacturing Files: Gerbers, NC Drill files, BOM (Bill of Materials), and CPL/Pick-and-Place files ready for standard rapid prototyping (e.g., JLCPCB). Source Files: Complete handover of the raw KiCad project directory. Ideal Candidate:...
...BLE communication (device ↔ mobile app) * Real-time ECG data acquisition * Data packet transmission * Basic power management (sleep mode, battery monitoring) **4. Prototype Support** * Assist in debugging after PCB fabrication * Support 1–2 iteration cycles if required --- **Key Requirements:** * Experience with embedded systems (ESP32 or similar MCU) * Strong experience in PCB design tools (Altium / KiCad / Eagle) * Understanding of low-noise analog circuits (important for ECG) * Experience with BLE communication * Ability to work with real-time signal data --- **Highly Preferred:** * Experience in ECG / biomedical / wearable devices * Familiarity with ECG ICs (ADS1292 / ADS1298 or similar) * Experience building end-to-end embedded products --- **Deliverable...
The smart-switch board I am building is already about 80 % routed, tested on the bench, and proven to hit 30 A without thermal drama. What is still missing is the final professional polish that turns a promising prototype into a production-ready layout for JLPCB. Everything lives in a single Altium Designer project: four-layer stack-up, beefy copper pours, a bank of N-channel MOSFETs, current-sense network and the ESP32 that handles logic. I now need a senior-level engineer who can walk in, spot the last 20 % of issues, and close them calmly and cleanly. Key points you will tackle • Confirm the power path is truly 30 A stable under surge and, if needed, refine trace widths, via stitching and plane splits. • Implement the digital soft-start I sketched out so inrush st...
...rigorous placement and routing job in Altium Designer. The design is feature-dense—dual Gigabit Ethernet (RTL8211F-CG, RGMII), USB 3.0 Type-C with STUSB1600 and FUSB340, a USB2514B hub, LVDS/DSI/CSI lanes, an ES8388 codec, plus SDIO and robust power conditioning—so signal integrity, impedance control, and EMI/EMC best practices must guide every trace. The board must fit a custom outline (I’ll supply the STEP/DXF drawing). High-speed pairs need length-tuning, differential spacing, and reference-plane continuity; the layout also has to respect constraints. All routing layers, via types, and copper pours should align with a 4-layer stack I will share, though I’m open to your recommendations if additional layers materially improve performance. Deliverables &...
I have a consumer-electron...will hand over: • A functional block diagram and the chosen microcontroller part number • Basic electrical requirements and I/O list and BOM What I need back: • Clean, well-annotated schematic • Optimised two-layer board layout with clear power and ground routing • Fabrication package (Gerber, drill, pick-and-place, and assembly PDFs) • Editable project files from your preferred tool (Altium, KiCad, or Eagle are all fine) • Final output that the manufacturer uses for making the board. Please keep trace widths and clearances suitable for high-volume consumer builds, maintain reasonable board dimensions, and position the microcontroller for straightforward reflow. If anything in the spec is unclear, flag it e...
I already have a fully-routed PCB inside the Microwave Office AWR Design Environment (20-component BOM, no further edits required) and I need the whole project transferred into Altium Designer. For this first run, I want the conversion done manually so I can check every footprint, net, and constraint inside Altium before we automate anything. What I expect from you: • An Altium Designer project that opens without errors, with all schematic symbols, footprints, design rules, and layer stacks faithfully reproduced from the original AWR file. • Detailed documentation that explains each step you took—import settings, library handling, any re-mapping decisions, and how you verified connectivity—so I can replicate or audit the procedure later. Once ...
...complete, I need the full manufacturing package: 1. Gerber and drill files ready for fabrication 2. Complete, referenced Bill of Materials (BOM) 3. Pick-and-place file with X/Y coordinates 4. Readable schematic in PDF 5. Assembly drawings showing part orientation and polarity 6. 3D STEP file of the finished board Please build the design in whichever professional PCB tool you prefer (Altium, KiCad, Eagle, etc.)—just be sure to supply all native files alongside the outputs listed above. The job is finished when the board files pass DRC, meet the certification rules I provide, and are confirmed production-ready by my chosen contract manufacturer....
...certification readiness must be addressed up front. Mechanical integration The electronics must mate cleanly with a lightweight enclosure that is comfortable on the wrist while still meeting drop, sweat, and ingress requirements. 3D CAD models should be ready for iterative SLA prints and later injection-mould tooling. Deliverables 1. Complete schematic capture and multilayer PCB layout (native Altium, KiCad, or similar). 2. Bill of materials with manufacturer part numbers and lifecycle status. 3. 3D CAD assembly of the enclosure with board-to-housing alignment features. 4. DFM / DFA review package ready for handoff to a contract manufacturer, including assembly stack-ups and recommended test points. 5. Brief validation plan outlining lab tests for heart-rate accurac...
...Custom PCB design and layout - Embedded firmware development (Arduino, ESP32, STM32) - Motor control logic with timing and safety features - Emergency stop and safety system integration - (Optional) Simple user interface (buttons, display) - Coordination with mechanical team or fabrication vendors Ideal Skills: - Embedded systems design (Arduino/ESP32/STM32) - PCB design with KiCAD, EasyEDA, or Altium - Experience with motor control (DC/servo/linear actuators) - Safety integration: limit switches, emergency cutoff - Prototyping and hardware debugging - Documentation: BOM, firmware notes, wiring, test checklist Nice to Have (Bonus): - Experience in healthcare, rehabilitation, or wellness products - Familiarity with motion profiling or compliance standards - Access to prototyping f...
...USBLC6 ESD protection RJ45 Ethernet connector (with magnetics) USB-C power input connector RGB LED + tactile push button 2×8 right-angle expansion header All passives (resistors, capacitors, inductor) Board Specifications: Size: 100mm × 80mm Layers: 2-layer PCB Thickness: 1.6mm Standard: IPC-2221 Class B Surface finish: HASL or ENIG Required Deliverables: Complete schematic file (KiCad or Altium) 2-layer PCB layout file Gerber files (RS-274X format, zipped, ready for JLCPCB) Drill files Production BOM (.xlsx) Assembly drawing (.pdf) 3D model (.step) Important Notes: Must have prior experience with ESP32 or similar IoT/embedded boards Please share relevant portfolio samples when bidding Schematic must be reviewed and approved by me before PCB layout...
...each with its own duration, and have the timer cycle through them automatically until reset. Simple countdown or stopwatch modes are not required; every ounce of effort should go toward reliable interval programming, easy adjustment, and fool-proof operation. Here is what I expect to receive: • Complete electronic design files (schematic, PCB layout, and all source files) suitable for production—Altium, KiCad, or equivalent are all fine as long as they’re clearly documented. • Firmware that stores multiple interval profiles in non-volatile memory, drives the LED display, and supports start / stop / reset via tactile industrial buttons. Any mainstream microcontroller platform is acceptable; please include commented source code and a straightforward method...
...transmit and receive paths, includes the line-frequency filters, protection devices, and the isolation transformer specification. Please size every component for continuous connection to 230 Vac and spec the transformer so it handles 80 kHz without excessive loss. If a small PCB layout or SPICE plot helps to prove the concept, feel free to add it. Deliverables • Full schematic in PDF or KiCad/Altium format • Bill of materials with manufacturer part numbers • Transformer winding details or a part number that matches the spec • Brief design note explaining how the circuit keeps 230 Vac away from the Teensy I/O and how the 80 kHz path is maintained (injection level, expected insertion loss, filtering, and surge protection) I will test by driving the c...
I have a finished, four-layer ESP32 board layout that is almost ready for fabrication, but before I release the Gerbers I want a fresh set of expert eyes on it. The priority is to confirm that every electrical connection is rock-solid—power rails, ground returns, high-speed signal lines, reset/boot...project files or annotated suggestions so I can implement the corrections myself. If you spot something that requires a schematic tweak, note it in the report rather than editing the schematic directly; I’ll handle that side. My goal is zero surprises when the boards come back from the fab house, so thoroughness is more important than speed. Let me know which CAD package(s) you prefer—KiCad, Altium, or others—and any specific file formats you need from me so we...
...would like a battery voltage divider (two resistors) connected to GPIO 34 (ADC1 channel) so the firmware can read the battery percentage and display it on screen. Also include test points on key power rails (3.3V, VBAT, 5V USB) and maintain a proper keepout zone around the ESP32 module's antenna area per Espressif's RF design guidelines. Deliverables I need: complete schematic (KiCad preferred, Altium also acceptable), finished PCB layout with copper pours and proper grounding, manufacturing-ready Gerber files compatible with JLCPCB or PCBWay, a Bill of Materials with LCSC/JLCPCB part numbers where possible for easy assembly ordering, a pick-and-place file if SMD components are used, and a 3D render of the finished board....
• Editable layout file in your preferred tool (KiCad, Altium, Eagle or EasyEDA are all fine) • Gerber and drill files ready for fabrication • Simple PDF/PNG assembly drawing labeling each button for reference
I have already drawn the exac...straight-through wiring if you prefer) on a single copper side, keeping all components on the opposite face. The outline, mounting holes and keep-out zones in my AutoCAD file must stay untouched, but component placement is otherwise flexible as long as the finished board remains single-sided and manufacturable by a standard PCB house. Deliverables: • Editable layout file in your preferred tool (KiCad, Altium, Eagle or EasyEDA are all fine) • Gerber and drill files ready for fabrication • Simple PDF/PNG assembly drawing labeling each button for reference Please keep trace widths and clearances suitable for typical low-current signal lines. If anything in the outline conflicts with best practice, flag it before routing and we&rs...
