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Redesign Existing PCB of a product prototype.

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



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


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.

Kĩ năng: PCB Layout, Điện tử, Vi điều khiển, Kĩ thuật điện, Sản xuất

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Về Bên Thuê:
( 6 nhận xét ) Manaus, Brazil

ID dự án: #31835263

Được trao cho:

(115 Đánh Giá)

35 freelancer chào giá trung bình$1015 cho công việc này


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 Thêm

$950 USD trong 2 ngày
(40 Nhận xét)
(146 Nhận xét)
(82 Nhận xét)

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 Thêm

$1000 USD trong 7 ngày
(33 Nhận xét)

I develop the schema circuit and PCB as simple and compact as possible. I work in developing electonic circuit over 10 years of experience. I'm specialist in eletronic, PCB and software projects. I assemble SMD, and h Thêm

$850 USD trong 7 ngày
(21 Nhận xét)

Thanks for Freelancer which gives chance to meet you. I hope you are good. I have read your description carefully and understand everything. I’m Electronics engineer who have 25 year experience on analog design, renew Thêm

$750 USD trong 20 ngày
(37 Nhận xét)

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 Thêm

$1300 USD trong 7 ngày
(18 Nhận xét)

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 Thêm

$1200 USD trong 15 ngày
(8 Nhận xét)

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 Thêm

$840 USD trong 42 ngày
(18 Nhận xét)

We will do your Pcb work Hi my Professional Aim is: (Services then Solutions then Satisfactions) I hope you are [login to view URL] an experience in this field from last 5 years i am sure i can do it perfectly with in a time and Thêm

$750 USD trong 7 ngày
(57 Nhận xét)

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.

$1000 USD trong 7 ngày
(4 Nhận xét)

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 o Thêm

$1300 USD trong 60 ngày
(4 Nhận xét)

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 h Thêm

$900 USD trong 2 ngày
(4 Nhận xét)

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 qu Thêm

$750 USD trong 7 ngày
(33 Nhận xét)

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 Thêm

$750 USD trong 15 ngày
(13 Nhận xét)
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(14 Nhận xét)

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 / S Thêm

$999 USD trong 7 ngày
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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 sati Thêm

$1200 USD trong 8 ngày
(5 Nhận xét)