KiCad PCB Design — RS-485 Temperature/Humidity Sensor

@mairajali11

With a background in Electrical/Electronic Engineering and over 8 years as a professional PCB designer, I have the skill set and technical proficiency to tackle your project with precision and quality. My extensive experience using KiCad, Eagle, Altium, and EasyEDA aligns perfectly with your requirements for this task, making me the ideal candidate for designing your compact RS-485 temperature/humidity sensor node. Additionally, I bring expertise in CAD/Housing Design for PCBs in Fusion-360, which will ensure that your board meets high standards for Design for Manufacturability (DFM) compliance. As a bonus, if needed, I can also provide MATLAB/SIMULINK & Python programming support for the development of custom software solutions to complement your hardware project. The fact that I'm a JLCPCB-compatible designer is an advantage that guarantees seamless communication between us throughout the project. With me on board, you can rest assured knowing all outputs will be delivered promptly and with zero errors. Together we'll create a product that is precisely tailored to fit your needs and those of your target manufacturer. Let me pair my skills with your vision to create the best possible solution - let's get started now!

@Amidst

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!

@EhtishamHaider1

As an accomplished Electrical Engineer and Data Scientist, specializing in Circuit Design, PCB Layout and Electronics, I believe I am the ideal candidate for this project. My expansive skill set also includes FPGA programming and creating/embedding powerful simulations using tools like MATLAB, capable of handling complex data sets. Based on the project's need for a compact RS-485 sensor node with temperature/humidity measurements, my proficiency in digital systems design and implementation of embedded solutions is well aligned. In addition to designing quality circuitry, I place particular emphasis on DFM compliance - a crucial aspect of this project. This mindset carries over to my data-driven approach in the use of tools such as Power BI and Tableau for reporting and visualization. By supplying JLCPCB-compatible outputs without any DRC + ERC errors, I ensure seamless collaboration with the targeted manufacturer. Finally, I immensely value quality assurance while offering time-efficient projects. Hence, my deliverables will not only include the KiCad 8.x project files (schematic+PCB), schematic PDFs, Gerber+drill files, but also JLCPCB-format BOM (CSV with LCSC part numbers), JLCPCB-format pick-and-place file and 3D STEP model. All these aspects combined make me well-suited to meet your unique needs for the KiCad PCB design. Looking forward to discussing further on how we can jointly realize your vision!

@alishba438

I will do:- Simple to advanced Circuit design and analysis using software tools such as KiCAD, Proteus, Altium Designer, Allegro, PADs, and Eagle My package provides the following services - Schematic drawings - Gerber files - Netlist generation - Pcb's - BOM generation (Professional BOM) - 3D Models of the Actual PCB - ECAD Library Administration I will also generate Gerbers on existing PCBs files

@ahmedy607

Hello, Please check my portfolio and The last Review of the Project I finished— I have designed several **industrial sensor nodes and RS-485 communication boards** similar to this project. I can design the complete **schematic and PCB in KiCad 8.x** for your compact node based on **ATtiny1614**, integrating the **SHT41** and **MAX3485** with proper RS-485 protection, fail-safe biasing, and EMI filtering. The design will include: * Clean **2-layer 55×30mm layout** optimized for JLCPCB assembly * Full protection (reverse polarity MOSFET, PTC fuse, TVS on RS-485/VCC/UPDI) * Proper **thermal isolation for the sensor** with PCB slot and ground keep-out * Address jumpers, termination jumper, and UPDI pogo programming pads * DFM-friendly footprint selection with **LCSC-available components** Deliverables will include: * Complete KiCad 8.x schematic + PCB project * Schematic PDF * Gerber + drill files * JLCPCB-compatible **BOM and pick-and-place files** * 3D STEP model * Clean **ERC/DRC reports (zero errors)** I focus on **robust protection design, EMI-aware routing, and production-ready outputs** to ensure smooth JLCPCB turnkey assembly. Best regards, Ahmed

@nevorek

Good day. I developed similar boards. You can look in my portfolio. And, also, sensors with small footprint.

@AndreiVu

Hello contractor, I will be short to not waste your time. I have almost 10 years of experience in electronics design. I have designed industrial products that use RS-485, including harsh environments. I am very familiar with the JLCPCB ordering, file formating and flow since I have worked with them for over 5 years, both professionally and hobby. At the end of the product, you will get the native KiCAD files, manufacturing files for JLC PCB and support for ordering the boards. If you believe I am a good fit, message me and let's make it happen.

@muhammadtanzeel8

Hi, I’m a PCB Designer and Signal & Power Integrity (SIPI) Engineer with experience in compact embedded and RS-485 communication designs. I can design your 55 × 30 mm, 2-layer KiCad 8.x PCB fully optimized for JLCPCB assembly, including ATtiny1614, SHT41 with thermal isolation, MAX3485, dual RJ45, JST-SH port, and complete protection circuits (P-MOSFET, PTC, TVS, fail-safe biasing, EMI filtering). I’ll ensure clean layout, proper grounding, and zero DRC/ERC errors. You will receive KiCad project files, schematic PDF, Gerbers, JLCPCB-ready BOM (with LCSC parts), pick-and-place file, 3D STEP model, and reports — fully production-ready. Ready to start immediately.

@Santoshchaulaga

Hello, My name is Santosh Chaulagain, and I am a professional Electrical Engineer and PCB Designer with over 7 years of experience in schematic design, PCB layout, and embedded systems development. My background includes extensive work with ESP32-based systems, IoT devices, and both analog and digital circuit design. I have successfully delivered multiple projects to clients worldwide, providing reliable, cost-effective, and production-ready hardware solutions. My expertise covers industry-standard PCB design practices, optimized component selection, complete BOM preparation, Gerber file generation, and performance-driven design optimization. I ensure that every design is thoroughly prepared for manufacturing and built with reliability in mind. After carefully reviewing your project requirements, I am confident that I can deliver a high-quality solution tailored specifically to your needs. I prioritize clear communication, structured development processes, and on-time delivery. I am also committed to providing revisions and technical support to ensure the final result fully meets your expectations. I would be glad to discuss your project in more detail and explore how we can bring it to completion efficiently and successfully. Looking forward to collaborating with you. NOTE: I HAVE SIMILAR TYPE OF PROJECT DESIGN EXPERIENCE. Best regards, Santosh C. Electrical Engineer | PCB Designer | ESP32 & IoT Specialist

@hsierramtz

Hello, I have experience designing compact 2-layer industrial PCBs with RS-485 communication, protection circuitry, and DFM-focused layouts for JLCPCB. My approach will prioritize signal integrity, thermal isolation for the SHT41, and robust protection on power and communication lines. I can deliver a clean, production-ready KiCad 8.x design fully optimized for JLCPCB turnkey assembly. Key design focus: • Proper RS-485 differential routing with fail-safe biasing and low-capacitance TVS protection • Reverse polarity protection (P-MOSFET), PTC fuse, ferrite EMI filtering • Careful 3.3V regulation layout (thermal impact consideration near sensor) • Routed PCB slot + ground keep-out to thermally isolate the SHT41 • Clean jumper addressing and termination configuration • Full DRC/ERC clean reports (zero errors) • JLCPCB-ready BOM (LCSC parts) and pick-and-place files • Accurate 3D model + STEP export Before layout, I will review component availability in JLC’s library to avoid assembly issues and ensure DFM compliance from the start. Deliverables: complete KiCad project, manufacturing files, assembly data, and documentation as specified. If your goal is a reliable, production-ready sensor node, I would be glad to collaborate with you. Best regards, Hammurabi

@Suleman772

Clean protection, solid layout, and zero-error manufacturing files are exactly what this board requires. Hello, I’m a PCB design engineer experienced in compact, field-deployed RS-485 sensor nodes where reliability and DFM matter more than complexity. Your requirements are clear, practical, and well suited for a production-ready KiCad 8.x design. My understanding of the board • 55 × 30 mm, 2-layer FR4 (black mask, HASL) • ATtiny1614 MCU with SHT41 temperature/humidity sensor • RS-485 half-duplex via MAX3485 with fail-safe biasing and termination jumpers • Dual RJ45 daisy-chain + JST-SH sensor connector • 5 V input to 3.3 V LDO with full protection (P-MOS, PTC, TVS, ferrite) • Thermal isolation slot and copper keep-out for the sensor • UPDI programming via pogo pads and RJ45 • Designed for JLCPCB turnkey assembly What I will deliver • KiCad 8.x schematic and PCB files • PDF schematic • Gerbers, NC drill, and pick-and-place files • BOM with verified LCSC part numbers • 3D STEP model • ERC/DRC reports with zero errors I focus on clean schematics, disciplined 2-layer layouts, and boards that assemble and work correctly the first time. I’d be happy to review connector pinouts or protection details before starting. Best regards, Muhammad Suleman PCB Design Engineer

@djalltra

Hi, This project fits my background very well. I design compact, protection-heavy industrial PCBs in KiCad 8.x and I’m very comfortable preparing boards specifically for JLCPCB turnkey assembly. For your RS-485 sensor node, I’ll approach it with reliability first: proper reverse polarity protection using a P-MOSFET, coordinated PTC and TVS protection on RS-485, VCC, and UPDI, correct fail-safe biasing for the MAX3485, and clean power filtering before the AMS1117. I’ll also pay close attention to grounding strategy and EMI control. The SHT41 thermal isolation will be handled properly using a routed slot and ground keep-out so the MCU and LDO don’t influence readings. Daisy-chain RJ45 routing will be clean and symmetrical, and I’ll implement the 3-bit solder jumper addressing and termination jumper in a way that’s easy to assemble and configure. Everything will be fully DRC/ERC clean and optimized for JLCPCB correct LCSC part selection, assembly-ready footprints, validated BOM, centroid file, and STEP model included. You’ll receive complete KiCad 8 project files, fabrication outputs, and documentation ready for production. Thanks

@mindmagic1

Hello, I can design the RS-485 sensor node PCB in KiCad 8.x based on your specifications. The board will be compact (55 × 30mm) with a 2-layer FR4 design and black solder mask, ensuring compliance with DFM guidelines for JLCPCB's turnkey SMT assembly. Key design features will include: ATtiny1614 MCU (SOIC-14) SHT41 sensor (DFN 1.5×1.5mm) RS-485 communication via MAX3485 transceiver Full protection circuits (reverse polarity, PTC fuse, TVS diodes, fail-safe biasing, EMI filter) Thermal isolation and proper routing for the sensor and electronics Power management: 5V → 3.3V via AMS1117-3.3 LDO Connectors: 2x RJ45 for daisy-chain + 1x JST-SH for external sensor port 3-bit solder jumper addressing + termination resistor jumper UPDI programming via pogo pads I will ensure the design includes: KiCad 8.x project files (schematic + PCB) Schematic PDF, Gerber & drill files, JLCPCB-compatible BOM (CSV with LCSC part numbers) Pick-and-place file, 3D STEP model DRC + ERC reports with zero errors With quality, protection, and compliance at the forefront, I'll also optimize the design for reliable manufacturing at JLCPCB. Let's get started and bring your project to life!

@vdgoyal2015

Hi based on your requirements my 5 years of experience designing embedded systems fits perfectly. I have extensive experience with RS485 protocol(including modbus). I can provide you with an detailed design report, DFM/FMEA reports. I am confident with kicad/altium/orcad designs and have produced pcbs with JLCPCB begore as well. Regards

@thejasvim

1. Professional DFM Expertise (Design for Manufacturing) Working at a Tier-1 EMS company like Kaynes, I see firsthand the issues that cause PCB assembly to fail. I don't just design a board that "works" on a bench; I design for the factory floor. * What I provide: I will ensure all footprints, fiducials, and clearances are optimized for JLCPCB’s automated SMT lines to achieve a 100% first-pass yield. 2. Industrial-Grade Protection Strategy A sensor node on an RS-485 bus faces electrical noise and surges. I have professional experience in implementing: * Multi-stage protection: I will integrate the PTC fuse, P-MOSFET reverse polarity protection, and SM712 TVS arrays specifically rated for RS-485. * EMI Filtering: I will include ferrite beads and decoupling strategies that I use in my daily R&D work to ensure signal integrity. 3. Precision Thermal Management The SHT41 is extremely sensitive. If the AMS1117 LDO is too close, the temperature readings will be wrong. * My approach: I will implement a physical U-shaped routed slot in the PCB and a specific ground-pour keep out. This creates a "thermal island" for the sensor, ensuring your data is accurate and unaffected by the MCU’s heat.

@ElecHamza

Hi, I will design your compact RS485 sensor node in KiCad 8.0 with a strong focus on DFM compliance and signal integrity. Your project will feature a clear thermal isolation slot for the SHT41 sensor and a robust protection stage including TVS diodes and P-MOSFET reverse polarity shielding. I will ensure the layout is fully optimized for JLCPCB turnkey assembly by providing verified BOM files with LCSC part numbers and precise pick and place data. You will receive a complete design package with zero DRC errors and a clean 3D STEP model for your mechanical verification. I am ready to start the schematic immediately to meet your specific hardware requirements. Best regards

@ManuHegdeth

Hello, I am very interested in designing your compact RS-485 sensor node PCB in KiCad 8.x. I have solid experience in 2-layer industrial PCB design, RS-485 communication, protection circuitry, and DFM-optimized layouts for JLCPCB turnkey assembly. I will design the schematic and PCB with proper EMC practices, fail-safe biasing, TVS protection (RS-485, VCC, UPDI), reverse polarity protection using P-MOSFET, and PTC implementation. Special attention will be given to thermal isolation of the SHT41 using routed PCB slots and controlled ground pour keepout to ensure accurate sensing. The layout will be optimized for signal integrity, clean routing, proper decoupling, ferrite bead EMI filtering, and manufacturability under JLCPCB constraints. I will also ensure correct footprint selection using LCSC parts for smooth assembly. Deliverables will include: • Complete KiCad 8.x project (schematic + PCB) • Manufacturing-ready Gerbers and drill files • JLCPCB-formatted BOM with LCSC numbers • Pick-and-place file • 3D STEP model • ERC & DRC reports (zero errors) I can complete the project within 4 days with clean documentation and professional quality. Looking forward to collaborating with you.

@ostronik

Hi Greetings from OSTronik India! We are a technology-driven company specializing in Power Electronics and Embedded System Design integrated with Artificial Intelligence (AI), delivering reliable, industrial-grade Electronic Solutions—from concept to mass production, all under one roof. Our in-house capabilities include R&D, Firmware Development (C & Python Programming), Hardware Design, Prototyping, and Scalable Mass Production with a focus on quality and cost efficiency. Core Expertise: • Microcontroller : PIC, STM32, ESP Family, AVR, Nuvoton, XBee. • Microprocessors: Raspberry Pi • Development Tools: MPLAB X IDE, Keil, STM32CubeIDE, Arduino IDE, Atmel Studio, VS Code. • Hardware Design: Industrial-grade multilayer PCBs using Altium Designer, KiCad, with efficient power design, isolation handling, and EMI/EMC compliance. • Communication Protocols: UART, SPI, I²C, CAN, Modbus, MQTT, LAN, S-Bus, RS-485, RS-232. • RF Modules: LoRa, nRF Series, XBee, Laird RF Modules. Project Capabilities: Power Monitoring & Energy Management Units, CNC Controllers, BLDC/DC Motor Control, IoT-based Agriculture, Smart Home & Industrial Automation, Inverters, Stabilizers, and Gimbal-based Videography Control Systems. We have already transformed the concept into a successful Electronic solution for multiple clients. To help you better visualise our expertise, we would be glad to share a brief reference video. Let’s schedule a meeting to discuss further. Best Regards, Team OSTronik India

@yenesgoktug

I have a good experience about pcb design in KiCad and robotics. These two makes me suit for this task perfectly.