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create a Kicad board project. Compute & core board • Main module: Orange Pi Zero 2 (Allwinner H616, Wi Fi, BT, Ethernet, GPIO headers). • All existing interfaces on Orange Pi Zero 2 must remain usable: o Gigabit Ethernet (RJ45) if possible. o Wi Fi + Bluetooth (onboard radio, keep antenna performance in mind). o USB 2.0 ports (at least one host exposed, others via headers if needed). o 26 pin header: I²C, SPI, UART, GPIO. o 13 pin header: USB, audio/TV-out, IR, extra GPIO (either directly or via mezzanine/adapter). o Debug UART access. Cellular connectivity • LTE modem: equivalent LTE Cat 1/Cat M/NB IoT module. • eSIM support: o On board eSIM chip (MFF2 package) connected to the modem. o Optional footprint for nano SIM as backup is a nice extra. • LTE antenna: o At least one main LTE antenna via [login to view URL] / MHF4 to external antenna with 3m cable length o Ground plane and keep out around RF traces. GPS/GNSS • Dedicated GPS module (e.g., u blox / Quectel / similar) with: o UART connection to Orange Pi (or to LTE module if it supports GNSS pass through). o External active antenna support: RF connector (SMA on enclosure, [login to view URL] on PCB). 3 m coax cable to rooftop antenna → design for: Low loss coax (e.g., RG 174 or better). LNA power (3.3–5 V bias) if using active antenna. ESD protection and lightning surge protection at antenna input. Local connectivity • Wi Fi: Provided by Orange Pi Zero 2 onboard radio. • Bluetooth: Provided by Orange Pi Zero 2 onboard radio. • Ensure RF coexistence with LTE and GPS (placement, ground, shielding). Serial & automation interfaces • RS 232 port: o Use a level shifter (e.g., MAX3232 class) from Orange Pi UART to DB9 or terminal block. • Two RS 485 ports (assuming that’s what you meant by RS234): o Each with isolated or non isolated transceiver (e.g., MAX3485/ADM485). o Screw terminals or pluggable connectors. o Termination resistor and biasing network (jumper selectable).
Project ID: 40466441
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35 freelancers are bidding on average $198 USD for this job

As an experienced electrical engineer with an MSc in Embedded Systems, I bring a wealth of skills and knowledge that perfectly align with your Kicad board project for the Orange Pi 2. My specialized expertise in firmware development, PCB design, and complete IoT product engineering makes me ideally suited for this task. I regularly employ effective strategies and incorporate innovative designs to tackle complex problems such as RF coexistence, routing for GPS modules, and cellular connectivity while ensuring optimal signal quality. My proficiency in using Altium Designer, KiCad, and other leading software will be instrumental in creating the best possible PCB layout for your project. In addition to making sure all existing interfaces on the Orange Pi Zero 2 remain usable, I have significant experience in integrating LTE modems, eSIM chips, GNSS modules, and multiple serial ports into embedded systems. Moreover, my track record involves several successful projects focusing on IoT connectivity - critical when managing multiple data flows like those required by your Kicad board design. Implementing MQTT protocol and shaping secure device-to-cloud pipelines using RESTful and WebSocket communication will provide you with reliable connectivity solutions. Trust my thoroughness, creativity and commitment to translate your ideas into a strong tangible reality by selecting me. I am ready to dive deeply into this project with you.
$525 USD in 7 days
8.3
8.3

I am a skilled and reliable Embedded Systems Engineer with over 6 years of hands-on experience in Arduino, ESP32/ESP8266, and microcontroller-based development. I specialize in designing efficient, stable, and scalable embedded solutions, turning ideas into fully functional hardware-software systems. I have a strong background in electronics, sensors, communication protocols (UART, I2C, SPI, MQTT, WiFi, BLE), and real-time embedded systems. My development approach focuses on clean, well-structured, and well-documented firmware, ensuring long-term reliability and easy maintenance. I also provide thorough testing, debugging, and performance optimization, including power efficiency improvements where required. I am a detail-oriented engineer with strong problem-solving skills and extensive experience in hardware debugging and firmware optimization. Beyond technical expertise, I value clear communication, meeting deadlines, and maintaining high client satisfaction. I work closely with clients to fully understand project requirements and deliver high-quality results. Pricing is flexible and can be discussed based on project scope and complexity. I am open to both short-term and long-term projects. Let’s work together to build a professional, reliable, and efficient embedded system for your needs.
$100 USD in 7 days
7.4
7.4

With my extensive experience in electrical engineering and PCB design, I strongly believe I can excel in your project. I specialize in developing cutting-edge IoT solutions, dealing with hardware/firmware and embedded systems all within the context of wireless communications and connectivity. My proficiency spans across various technologies encompassing WiFi, Bluetooth, GPS/GNSS etc. One of my greatest strengths is designing for RF coexistence and ensuring optimal performance across different domains. During my career, I have developed a track record for delivering high quality, cost effective solutions on time, every time, and this project wouldn't be any exception. I fully embrace the challenge you've presented in preserving the Orange Pi Zero 2's functionalities while integrating essential features such as LTE and GNSS connectivity plus the stringent considerations for RF coexistence. These balancing acts are where my skill set shines brightest. In essence, what sets me apart is that I'm not only a seasoned PCB designer but a complete product development solution provider. Furthermore, as a freelancer & full-service product development technician, you'll get the flexibility to either assign this entire project to me or even opt for a milestone-based approach . Ultimately the choice is yours but rest assured when you choose me for your Kicad board design for Orange PI 2 project, you're selecting the most seasoned professional!
$250 USD in 21 days
7.6
7.6

I can create a professional KiCad-based carrier board project around Orange Pi Zero 2 with LTE, GNSS, RS232, and dual RS485 integration for industrial IoT deployment. I have 12+ years of experience in embedded hardware, RF-aware PCB design, Linux-based systems, and industrial communication interfaces. The design will preserve all critical Orange Pi interfaces including Ethernet, WiFi/Bluetooth, USB, GPIO, UART, SPI, and debug access. I can integrate LTE Cat-1/Cat-M modules with onboard eSIM support, optional nano-SIM backup, and proper RF routing with antenna keep-out regions. The GNSS section will include active antenna support, ESD/surge protection, low-loss RF routing, and clean grounding for stable positioning performance. Special attention will be given to RF coexistence between WiFi, Bluetooth, LTE, and GPS through layout isolation and grounding strategy. Industrial communication interfaces will include RS232 and dual RS485 with protection, selectable termination, and robust transceiver implementation. The PCB will be designed with production-ready stack-up, EMI considerations, thermal planning, and connector accessibility in mind. Deliverables will include full KiCad project files, schematics, PCB layout, Gerbers, BOM, and manufacturing-ready documentation.
$140 USD in 4 days
6.9
6.9

Hi, I’m a senior embedded hardware engineer with extensive experience designing Linux SBC carrier boards, LTE/GNSS gateways, RF-integrated embedded systems, and industrial communication hardware. I have developed multilayer boards using Rockchip, Allwinner, STM32, ESP32, Quectel, and u-blox platforms including LTE telemetry devices, industrial gateways, and compact Linux edge systems with Ethernet, RS485, GPS, and RF coexistence constraints. Approach: ✅ I will design a production-ready KiCad carrier board around the Orange Pi Zero 2 while preserving Ethernet, Wi-Fi, Bluetooth, GPIO, USB, and debug access with proper high-speed routing practices. ✅ I will integrate LTE + eSIM, GNSS with active antenna support, RS232, and dual RS485 interfaces using industrial-grade protection, impedance-controlled RF routing, and EMC-aware grounding/layout techniques. ✅ I will optimize the multilayer PCB for RF coexistence, thermal performance, power integrity, manufacturability, and reliable operation with external antennas and industrial cabling. ✅ I will deliver complete KiCad source files, schematics, PCB layout, Gerbers, BOM, CPL, assembly drawings, and DFM-ready manufacturing outputs. Questions: ✅ Which LTE regions/bands and cellular certifications are required for the target deployment markets? ✅ Should the RS485 interfaces be isolated or non-isolated for the intended industrial environment? Best, Yaroslav
$140 USD in 7 days
5.3
5.3

Dear Sir, I can design the complete KiCad project for your industrial communication platform based on the Orange Pi Zero 2, including schematic, PCB layout, RF considerations, and industrial interfaces. The design will include: - Full carrier/baseboard for Orange Pi Zero 2 - Ethernet, USB, GPIO, I²C, SPI, UART, and debug access - LTE Cat1/CatM/NB-IoT modem integration - On-board eSIM (MFF2) + optional nano-SIM backup - LTE antenna routing with RF keepout and impedance control - Dedicated GNSS module with active antenna support - ESD and surge protection for antenna inputs - RS-232 using MAX3232-class transceiver - Dual RS-485 ports with selectable termination/biasing - RF coexistence optimization for Wi-Fi, BT, LTE, and GPS - Industrial-grade grounding, filtering, and EMI protection Deliverables: - Complete KiCad project - Schematics + PCB layout - BOM and footprints - Gerber/manufacturing files - 3D PCB views and connector documentation I also have experience with RF PCB routing, Linux SBC integration, industrial communication hardware, and power integrity optimization. Best regards, Hamza Electronics Engineer
$120 USD in 5 days
5.4
5.4

Hi There! -As you can see in my portfolio by entering my profile, I have extensive experience designing PCBs and mass production products, as well as testing them. I already have a somewhat similar project integrating a Jetson Nano. -I would feel more comfortable designing it in Altium, but I also use KiCad without problems. For something so complex, it often saves time to design it in Altium, which is the tool I use daily. -I know you must be tired of reading bids from Pakistan/India that are generated with AI and then reassigned to someone else. You can check out my portfolio to see that's not the case with me, and we can chat if you have any questions. Please be patient with me if I take a while to reply, I'm often busy with something
$200 USD in 7 days
4.7
4.7

Dear Client, This project needs someone who can make the carrier board feel manufacturable to the PCB assembly house and electrically stable for long-term deployment later. That means the high-speed routing, RF layout, LTE/GNSS integration, serial interfaces, power architecture, and documentation all need to line up from the start. I can support the hardware-development portion from architecture through production-ready KiCad deliverables. My approach would be: ✅ design a custom KiCad carrier board around the Orange Pi Zero 2 while preserving all critical interfaces ✅ implement GNSS subsystem with active antenna support, RF protection, and low-loss routing practices ✅ optimize RF coexistence between Wi-Fi, Bluetooth, LTE, and GPS through placement and grounding strategy ✅ design RS232 and dual RS485 interfaces with proper protection, termination, and industrial connector layout The goal would be a stable, production-oriented board that can move directly into fabrication and field deployment without repeated hardware revisions. Two things I would confirm first: 1. Do you already have preferred LTE/GNSS module vendors or should selection be part of the design phase? 2. Are there enclosure size constraints or thermal limits that should define connector and antenna placement from the beginning? If you message me, I can suggest the cleanest architecture for balancing RF performance, manufacturability, and long-term maintainability. Best regards, Prat PCB Must Innovations
$250 USD in 2 days
6.5
6.5

With my experience in electrical engineering and design, specifically in PCB layout and electronic systems, I am confident I can fulfill your needs for the Kicad board project for the Orange Pi Zero 2. My proficient skills in working with circuits, interfaces (UART, I²C, SPI, etc.), and components align perfectly with what your project requires. What sets me apart is my dexterity in managing complex board designs coupled with wireless communication technologies. This includes the integration of Wi-Fi, Bluetooth, cellular modules (LTE Cat 1/Cat M/NB IoT), GPS antennas, and their respective coexistence challenges. I understand the need for uninterrupted connectivity and excellent RF performance which I assure you will be stringent focus points throughout the project. Additionally, having a grasp on multiple software's is an asset for any freelancer-particularly, in fields as dynamic as engineering et.al. My knowledge of softwares like KiCAD come from years of practical application. Being efficient in this tool allows me to implement your requirements, not only within given timeframes but also ensuring optimal placement and layout for better device performace. In all that said am confident am the right fit for this job! Please don't hesitate to reach out to me if you have any further inquiries or if you'd like to discuss your project's intricate details; I'm always here to help. Thank you for considering my application!
$96 USD in 2 days
5.0
5.0

HI, I am an experienced electronics and PCB Design engineer, specialised in use of ECAD software such as Altium Designer, KICAD, EasyEDA, etc. for the the design of electronics and PCB. I will design your projects to meet your Requirements and the industry standard. I do all kinds of circuits such as Power delivery circuit, Sensor Integrated Circuits, wireless control, MCUs etc. I will deliver the following. The Schematics for your Design The PCB for the design Bill of materials(If needed) Gerber, Pick and Place and other manufacturing and assembly drawings needed. Full Support and consultancy till the project is done. Kindly send me message for my previous designs and also so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq
$200 USD in 10 days
4.7
4.7

I have completed similar embedded Linux and industrial communication PCB projects involving LTE connectivity, GNSS integration, RS485/RS232 interfaces, RF-aware layouts, and custom carrier boards for ARM-based SBC platforms. I’m a Electrical & PCB Design Engineer experienced with KiCad and high-speed mixed-signal multilayer board development for industrial IoT and automation devices. For your Orange Pi Zero 2 carrier board, I can develop: Full custom KiCad project with schematic + PCB layout LTE Cat1/CatM/NB-IoT modem integration with onboard eSIM GNSS module with active antenna biasing and surge protection RS232 + dual RS485 communication interfaces RF-conscious layout for LTE/Wi-Fi/Bluetooth/GPS coexistence Proper grounding, impedance-aware RF routing, and ESD protection Manufacturing-ready Gerbers, BOM, and assembly outputs The design will maintain Orange Pi interface accessibility while optimizing thermal behavior, EMC performance, antenna placement, and industrial reliability. Best regards, Hasan
$200 USD in 3 days
4.0
4.0

Hello, I am Santosh Chaulagain, a professional Electrical Engineer and PCB Designer with over 7 years of experience in schematic design, PCB layout, and embedded systems, including ESP32, IoT devices, analog and digital circuits. I have successfully completed multiple projects for clients worldwide, delivering reliable and manufacturable designs. I have carefully reviewed your project requirements and I am confident that I can provide a high-quality solution tailored to your needs. My expertise includes PCB design using industry standards, component selection, BOM preparation, Gerber generation, and design optimization for cost and performance. I always ensure that my designs are fabrication-ready and tested for reliability. I focus on clear communication, timely delivery, and customer satisfaction. I am happy to discuss your project in detail and provide revisions until the final result meets your expectations. Looking forward to working with you. Best regards, Santosh C. Electrical Engineer | PCB Designer | ESP32 & IoT Specialist
$100 USD in 7 days
3.4
3.4

I’ve been doing KiCad board design for over a decade, and I can handle your Orange Pi camera PCB from schematic to fully routed layout. The job requires clean routing for the camera interface and display connector, and I’ll make sure signal integrity is solid. I’ve shipped boards like this before — including a custom ESP32-C3 air quality monitor PCB that went from concept to fabricated units in under three weeks. I can work within your budget and timeline without cutting corners. If you need firmware or enclosure design down the line, I cover that too. Let me know if you want to see my portfolio.
$140 USD in 2 days
3.3
3.3

I’ve been designing custom KiCad boards for over six years now, and your Orange Pi camera project looks like a really fun challenge. I can take your schematic and turn it into a clean, production-ready PCB layout with all the right connectors for the camera module and display. I’m excited about the idea of helping you get this prototype built and shipped to you in South Africa. I recently completed a similar compact PCB design for a smart golf ball that fit inside a 42mm enclosure, so I’m very comfortable working with tight spaces and specific component placement. Let’s get this board done right the first time.
$80 USD in 4 days
3.0
3.0

Hello, I am interested in this project and have strong experience in embedded hardware, RF integration, industrial communications, and multilayer PCB design. A recent project of mine involved an LTE-enabled device using a Quectel modem and STM32 MCU with GNSS functionality, RF routing, antenna integration, power management, and production-ready PCB development. The product has already been manufactured and successfully validated. For your Orange Pi carrier board, the critical challenges are RF coexistence between LTE, GNSS, Wi-Fi and Bluetooth, eSIM integration, antenna implementation, GNSS protection, and reliable RS232/RS485 communication. These are areas where I have practical development experience. I can deliver the complete KiCad design, including schematics, PCB layout, LTE/eSIM integration, GNSS circuitry, RS232/RS485 interfaces, BOM, Gerbers, and manufacturing documentation. I would be glad to review the full specification and discuss the architecture with you. Best regards. Jude
$250 USD in 10 days
2.1
2.1

Hi, I can create the complete KiCad project for your Orange Pi Zero 2 based carrier board, including schematic, PCB layout, RF considerations, and production-ready design files. I have experience with embedded Linux hardware, LTE/GNSS integration, RS-232/RS-485 interfaces, antenna routing, and multi-interface industrial boards. Your architecture is clear and well structured, and I can design the board while preserving all critical Orange Pi interfaces including Ethernet, USB, GPIO, UART, SPI, and debug access. I can also integrate the LTE modem with onboard eSIM support, optional nano-SIM backup, GNSS module with active antenna support, surge/ESD protection, and proper RF keep-out/grounding practices. For industrial communication, I will implement reliable RS-232 and dual RS-485 interfaces with selectable termination and biasing networks. Special attention will be given to RF coexistence between Wi-Fi, Bluetooth, LTE, and GPS to maintain stable performance. I can deliver the full KiCad project including schematics, PCB layout, BOM, footprint libraries, fabrication outputs, and design documentation ready for prototyping and manufacturing. Best regards, Engr. Muhammad Uzair
$120 USD in 3 days
1.0
1.0

My name is Robin, I am an electronics engineer based in Finland with a lot of experience working with KiCAD, simulating schematics and reading datasheets to bring all these things together. I have a strong grasp on RF engineering, having designed a plethora of power amplifiers, filters and power dividers. This, I have done with the help of AWR Microwave Office, so I am well-versed in that software too. I have designed several microcontroller boards before, including some RF and ZigBEE boards, using a combination of Microwave Office and KiCAD to get the job done. I am very good at keeping EMC concerns in mind to optimize the board for the least amount of interference and noise, both transmitted and received. I am mainly familiar with European EMC standards, though I am curious what standards this project will have to adhere to. Keeping all this in mind, I believe I am a strong candidate for this job, and I am sure I can fulfill any request you may have. Kind regards, Robin De Moor
$140 USD in 7 days
0.0
0.0

Hi there, As a multifaceted professional with a specialization in embedded systems, I strongly believe I'm the perfect candidate to take on your Kicad board design project for Orange Pi 2. My familiarity with relevant platforms such as Arduino, ESP32, and RPi will streamline the development process, ensuring that all existing interfaces on the Orange Pi Zero 2 remain usable while incorporating the necessary cellular and local connectivity features you've outlined, such as LTE modems with eSIM support and dedicated GPS module integration. Moreover, my diverse set of skills including hardware design in Altium and KiCad matches perfectly with your project requirements.
$240 USD in 3 days
0.0
0.0

Hello, I can design a complete KiCad PCB project for your Orange Pi Zero 2 carrier board integrating LTE, GNSS, RS-232/RS-485, and full interface breakout while maintaining signal integrity and RF performance. I have experience in embedded hardware design, SoM/carrier board development, high-speed digital routing, and RF-aware layouts. This type of design requires careful attention to power distribution, antenna keep-out zones, impedance control, and interface isolation—especially with LTE + GPS + onboard Wi-Fi operating together. I can deliver: • Full KiCad schematic and PCB layout • Orange Pi Zero 2 interface breakout (GPIO, USB, UART, I2C, SPI) • LTE Cat M/NB module integration with eSIM + optional SIM fallback • GNSS module with external active antenna support and proper RF design • RS-232 + dual RS-485 interfaces with transceiver selection and termination networks • Proper RF routing, grounding strategy, and antenna isolation • Manufacturing-ready outputs (Gerbers, BOM, pick-and-place files) I also pay strong attention to real-world deployment concerns such as EMI, long cable antenna losses, ESD protection, and industrial communication robustness. Happy to review module preferences and finalize architecture before layout. Thanks, Christopher.
$30 USD in 1 day
0.0
0.0

Hello, I’m very interested in your KiCad hardware design project. I have experience with embedded systems, PCB design, RF-aware layouts, LTE/GNSS integration, power and serial communication interfaces, including KiCad-based multilayer board development. I can design the complete compute and carrier board around the Orange Pi Zero 2 while preserving existing interfaces and integrating LTE, eSIM, GNSS, RS232, and dual RS485 connectivity with proper RF layout practices, grounding, ESD protection, and manufacturable routing. The final deliverables can include the full KiCad project, schematics, PCB layout, fabrication files, BOM, and design documentation ready for prototyping and production review. I’m ready to review your detailed requirements and begin immediately. Thank you.
$100 USD in 3 days
0.0
0.0

Johannesburg, South Africa
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Member since Apr 13, 2020
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