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Redesign Existing PCB of a product prototype.

$750-1500 USD

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Zveřejněno před více než 2 roky

$750-1500 USD

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We developed a prototype of our product but now we need a new pcb with necessary improvements and make it ready to send to a Contractor Manufacturer for production. we have 2 pcb shields, one collects the data and then send it via lora to the gateway (second shield, much simpler) Our product is a weighing scale to monitor cattle. Overview of the complexity of the project: weighing scale board Microprocessor: ESP32 (dual-core 32-bit MCU + ULP core), FLASH 8MB (64M-bits) SPI FLASH , RAM 520KB internal SRAM, with LoRa node chip SX1276 TTL RS232 Converter Analog to digital converter RTC DS130 SD CARD Power Source: Solar panel/battery Gateway Board Microprocessor: ESP32 (dual-core 32-bit MCU + ULP core), FLASH 8MB (64M-bits) SPI FLASH , RAM 520KB internal SRAM, with LoRa node chip SX1276 SD CARD Power Source: Standard wall plug socket; If you can contribute with not only the pcb's design, but helps us to format everything needed to send to a CM in order to start production... you are welcome.
IČ projektu: 31835263

O projektu

34 nabídky
Vzdálený projekt
Aktivní před 2 roky

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$0 USD v 3 dnech
4,9 (164 recenze)
7,5
7,5
34 freelanceři nabízejí v průměru $1 016 USD za tuto práci
Avatar uživatele
Best PCB Design Expert at your doorstep! Dear Client, As we have wide experience in redesigning Weighing scale PCBs and Gateways and would be able to provide prototypes and support for mass production as well, we are the best fit for your project We couldn’t stop ourselves from bidding after going through the description as they are an exact match with our skill set and experience. Please message me and share the existing PCB design We have extensive experience in Gateway Board based PCB design, Prototype design and know all the intricacies required to get the job done with perfection. We can ensure you best quality work and before time delivery. Following is a brief list of expertise that we are carrying: 1. IOT products development 2. Microcontrollers based circuit design – STM32, STM8S etc. 3. Smart Products like Smart watch - GSM/GPRS/GPS etc. 4. Wireless Products - BLE/Wi-Fi- ESP32/ESP8266/NRF24L01 5. Battery, SPI Flash 6. node chip SX1276 7. Lora, ESP32, Solar Panel 8. SD Card, RTC DS130 9. TTL RS232 Converter Please answer the following questions: 1 What are your future plans with this project? 2. Are there any specific market standards like CISPER you are aiming? 3. What will be ambient temperature of this product? Let’s have a quick discussion for 5 mins where we would formulate a plan of action of how we shall take this project to the horizons of success. Regards Avi Tech Experts Quality is never an Accident
$950 USD v 2 dnech
5,0 (59 recenze)
7,8
7,8
Avatar uživatele
Dear Client. I have just read your job description and your project is really interesting to me. I have many experiences working for 12+ years with Circuit design, PCB design, manufacturing functional prototyping with firmware programming and testing especially. Here are some of the experiences that I built ago. - Schematic and PCB design and Layout using Altium Designer, Eagle. - high-speed, flexible, Multi-Layer PCB design. - DDR, motor control, power converter, Keyboard, POE, UART, SPI, I2C, RF, BLE, LED lighting design. - ARM, DSP, MCUs, Arduino, Raspberry pi experiences. I am sure I can complete it on time with high quality. If you hire me, I can start to work for your job immediately. I'll do my best for you. Thank you for your time. Best regards.
$1 000 USD v 7 dnech
5,0 (33 recenze)
6,0
6,0
Avatar uživatele
Hello Sir, I have 6 years of embedded and IoT system development experience. I have designed multiple PCB boards of varying complexities. One such board is added to my portfolio, I would suggest you to have a look at that. You have not mentioned the software, I am proficient in KiCAD for PCB design and development. Let's have a chat if you need more PCB samples to review Regards
$1 200 USD v 15 dnech
5,0 (10 recenze)
6,0
6,0
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Dear Valued Employer, My name is Martin and I am an engineering physicist with extensive experience in the field of circuit design, circuit prototyping and PCB design. As I understand from the project description you are looking for an electronics engineer capable of redesigning two existing PCBs for a prototype according to all stated requirements. So, without further ado here's how the workflow would look like, if you happen to choose me as a partner for your project: 1. Initial discussion 2. Project documentation review 3. Consolidation of updates and changes 4. Component library creation (if necessary) 4.1 Schematic symbol library creation 4.2 Footprint library creation 5. Schematic drawings update 6. Review of schematic drawings 7. Layout design update 7.1 Components placement and arrangement 7.2 Stack-up configuration 7.3 Components routing 7.4 Review of final layout design 8. Final check, verification and validation 9. Production files Delivery term could be further negotiated once I start working on the project. Don't hesitate to contact me with questions regarding any details around your project. You could also check out my profile on Freelancer for more details around my professional experience. I am looking forward to hearing from you soon. Thank you for you time. Kind Regards Martin K.
$840 USD v 42 dnech
4,9 (19 recenze)
5,7
5,7
Avatar uživatele
Dear sir, we are interested to do this project. we had read your project description and understood your requirement. I have 15 years experience in industrial design, 4 years in 3d print and 11 years in plastic product design I worked on various mechanical software, my expertise are -Product design -3d modelling for 3d print and plastic products. -rendering, animation. -Plastic mold design -Stamping die design -Fixture design. -sheet metal I worked for various companies like, Technigraphics, Minda industries, Filtrum Tools and components, Tektronics. I worked for electromechanical product design. we are interested to work for this project.
$1 300 USD v 7 dnech
4,6 (18 recenze)
6,3
6,3
Avatar uživatele
Hello How are you? Thanks for your posting job. I have read your project requirements and I am 100% sure I can complete your project perfectly. ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ ⭐ I have 15 years experience in Circuit & PCB layout design and Microcontroller Firmware design. I will do my best to give you satisfactory results if you hire me. Please discuss about your project in more details. I can deliver your job efficiently within timeline. If you hire me, I think you won't regret. Best regards. Thank you Koba
$750 USD v 7 dnech
4,2 (25 recenze)
6,6
6,6
Avatar uživatele
Hello, I am an electronics and telecommunication engineer and my major is wireless systems' design. I am experienced in hardware and embedded systems' design. So far I have designed/printed/tested many PCBs and I am quite experienced with RF design (antennas, matching networks, filters, power dividers, feed networks, power amplifiers, differential pairs/signals), EMI(Clearance areas,shielding, conducted interference, common mode, etc), LVD, high speed data communication. I have checked your requirements, I have checked your requirements. I am quite sure that I can help you with your project. What I can offee can be like i design the PCBs and send you all the files. Then i can also help you with manufacturing online and guide you. I can also give some tips for the firmware. Just give me all the details and I will do my best to help you. Best regards
$750 USD v 7 dnech
4,7 (55 recenze)
5,7
5,7
Avatar uživatele
Hello? Let's discuss the project through chat so we can get more details and start the project right now. Waiting for you. Thank you very much.
$1 000 USD v 7 dnech
4,8 (5 recenze)
5,3
5,3
Avatar uživatele
Hello, I am a Senior Hardware developer. I have been working as a embedded hardware designer for 10+ years. I had developed several similar projects using the various microcontrollers such as STM32F1/2/3/4/7xx, PIC16/18xx, Wifi(ESP32, ESP8266), Zigbee, BLE/Bluetooth, Atmega, and the various Sensors. I can review and find out the mistake in your current design. And help you from designing to produce the small production. I have many experiences of schematic and multilayer(2~8 layer) PCB design with various BGA core(Cortex series, A series, FPGA ...), DDR3, DDR4, Ethernet,eMMC, HDI, WiFi. I am sure I can complete it on time with high quality. In that sense, I think I am the suitable persons you are looking for. If you give me a chance to interview, I'll explain in more detail and I'll do my best for you. I will work hard and hard to complete this task successfully. Best regards.
$1 500 USD v 7 dnech
5,0 (4 recenze)
5,2
5,2
Avatar uživatele
Hi, I have 15 years experience in PCB design and firmware development. Please share details of your existing prototype and the changes to be done in new PCB design. We will make the design using Altium and provide all design files ,Gerber files,..etc. We can also provide the support of manufacturing the PCB, assembled in India and ship it to you if needed We can discuss Regards Senthil Chennai,India
$750 USD v 15 dnech
5,0 (13 recenze)
5,0
5,0
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Hi I understand your requirements and i can design your boards and have them sent to my manufacturer to develop the first prototypes which will be mailed to you and which will align the production process to be taken over by your manufacturer. I assume you've already created the firmware for your boards and will flash it once you receive the boards right ? Please share your existing schematics for me to get a better understanding of your system so that i can help create the modified version. As for me, i have more than 20 years experience in designing analog, digital and power circuits and embedded systems, firmware and software systems. Regards Soumitra
$1 300 USD v 60 dnech
4,9 (4 recenze)
5,2
5,2
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Hi I can redesign PCB with new improvements for Prototypes mass production. I have already designed countless Weighing Scale PCB so would be the best fit to do this project for you. Please send me existing PCBs. I have humungous experience in redesigning Weighing scale PCBs and Gateway board and would make the solution cost effective, robust, and efficient. If you are looking for reliable design partner please message me now. I provide services of PCB Design, Circuit Design, Circuit Review, PCB review, Circuit simulation, IOT products development and Sensor conditioning product development. The expertise of mine is in the following fields: 1. Wireless Products – BLE, Wi-Fi, NFC, Lora etc 2. Power Electronics- Buck, Boost, Flyback, Half Bridge etc 3. IOT sensors interfacing – Pressure, Temperature, Moisture, PH etc. 4. Microcontrollers- ESP32, STM32, STM8S, RL78 etc. 5. GSM, GPS, GPRS, NBIOT 6. ESP32, Solar Panel 7. SPI Flash, SD CARD 8. TTL RS232 Converter 9. Node Chip SX1276 After reading your project details, I have certain queries and suggestions: 1. What is the application of this product? 2. What will be ambient temperature of this product? 3. What are the mechanical constraints to be taken care of? Please try to answer these questions based on which I would be providing free of cost consultation. Waiting for your message, Regards Hari Mohan Engineering for one is a magic for others
$900 USD v 2 dnech
5,0 (6 recenze)
5,2
5,2
Avatar uživatele
Hello, thank you for your job posting. I have 5 years experience in PCB and circuit design and Manufacturing, Embedded programming, and i can help you with any kind of request in these fields. I will do my best to satisfy the clients with my excellent skill and help them achieve their goal. You give me the opportunity, then i will give you the perfect result in return.
$1 200 USD v 8 dnech
4,9 (8 recenze)
4,9
4,9
Avatar uživatele
Hi there I have 13+ years experience in automation system design and development I hav worked with many esp32 , lora and other sensors I can easily design the pcb and develop firmware for you Plz msg to discuss in detail
$750 USD v 7 dnech
4,7 (21 recenze)
4,7
4,7
Avatar uživatele
A ) I have over 20 years of experience in PCB Layout, HW, RF, EMI, FW designs. we can complete various design and layout requirements and Android / iOS app development. # 8051 MCU / ARM Embedded system / Arduino / STM32 / IM6x / AVR / TI MSP430x / PIC / EP32 # WIFI / BT / BLE / GPS / LCD / DTV / MD / Web Camera / LED / Lighting / RPIx / CM4 / CM3 / UP CORE PLUS # LCD Inverter / Touch sensor / NIC / LAN / KSZ9031RNX / LAN8720 / IOT / nRFF528x / ESP8266 / TI CC26x # Battery / Solar Charger / BMS ( Battery Management System ) / Audio / CSR / Codec / AMP / IO-Link / LTE EC25 / BG95 B ) I can use as below to design and layout # Altium # Protel99SE # Eagle # PADS # KiCad # OrCad # Allegro # Proteus # DipTrace C ) I can communicate well in English, please contact us by e-mail or s-k-y-p-e me (saludpcb) to find out relevant details D ) I also have to provide PCB layout design service (super low price) # 1 ~ 8up layers ( PCB / FPCB ) High Speed / High Density PCB layout # Differential Signal PCB layout # RF Signal PCB layout # 3D Models # FreeCad E ) PCB / PCBA (EMS) # Prototype # Components procurement # Assembly # High quality # Quick, 24hr lead time # Low cost
$999 USD v 7 dnech
4,9 (6 recenze)
3,9
3,9
Avatar uživatele
Hello there, i am an Electronic engineer by profession and have been designing PCBs for quite a while now. I have developed many PCBs even for big giants like IBM, NVidea and HiSilicon. I got the experience you require for the project. You can visit my profile for compliance level. Please open the private chat box if you may so that we can discuss more. Thanks.
$1 300 USD v 7 dnech
5,0 (11 recenze)
3,4
3,4
Avatar uživatele
Hello, I have 10+ years of Embedded product design with multiple domains like a consumer, industrial, automotive, IOT and wearable product. -Hardware architecture design using MCU, controller, and FPGA, as well as low power battery, operated device -Experience in all phases of product development from prototyping to mass production -Experience in Schematic and high-speed PCB layout board design with multilayer PCB design, Blind & Buried Vias in HDI Design. -Expertise in hardware testing and troubleshooting/root cause -Working experience on power management system design with Buck-boost, Battery charger, and fuel gauge, USB3.0 Ctype and PD charging, POE and etc -Expertise in design and simulation of analog circuits -Experience in Microprocessor and microcontrollers like NXP, ST, Microchip, Marwell, Qualcomm, MediaTek, TI, Renesas, and Atmel -Exposure in mechanical design review -Expertise in wireless SOC with Bluetooth, WIFI, 4G, Lora, Zigbee from NXP, Nordic, Ublox, Qualcomm, Cypress, Broadcomm, TI, ESP, Silabs, Microchip -Experience in wire interface USB2/3, SPI, I2C, UART, HDMI, Ethernet, SDIO, MIPI-CSI/DSI, CAN, Modbus, RS232, RS485 -Expertise in solving problems of EMI/EMC -EMI / EMC compliance testing and product certification like CE/FCC/UL and etc Also, We have a team for software, firmware development and CAD as well as we support for CM level we will define milestone and adjust amount after discussion Let me know if you need help from me. Thanks. --Alpesh
$1 300 USD v 7 dnech
5,0 (1 recenze)
1,6
1,6
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Hi I read your project details I can support your project end to end Without delay and without errors Feel free to contact me
$750 USD v 3 dnech
0,0 (0 recenze)
1,6
1,6
Avatar uživatele
Hi, I have read your job description. I am working in electronic product industry for 9+ years. If you need PCBA redesign, material BOM cost(cheap), and arrange courier to your contractors for assemble. I am capable to do it. If your are willing to arrange the PCBA manufacturing, please do not hesitate and find me for more discussion. I am looking for long term business relationship. Free consultation and discussion are welcomed. Looking forward to receive your message soon!
$1 300 USD v 30 dnech
0,0 (0 recenze)
0,0
0,0
Avatar uživatele
Hi, I have more than 4 (Four) years of experience in PCB (Altium Designer) Layout Design, Schematic Capture, BOM Preparation, Hardware Developing & Debugging, SMPS (Power Electronics Topologies) and LED Luminaries. Also, I have experience in Atmel Coding and Web Designing. Instead of Altium Designer, I also used to Design DipTrace, Protel and KiCAD PCB Designer Software. I designed 6 (Six) Layer PCB Layout in Altium Designer 21.
$1 300 USD v 3 dnech
0,0 (0 recenze)
0,0
0,0

O klientovi

Pochází z BRAZIL
Manaus, Brazil
5,0
8
Ověřená platební metoda
Členem od říj 13, 2014

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