Development of a printed circuit board: STM32 + CH32V003 (RS485, CAN, HX711)

Embedded Systems & Microcontrollers — incorrectly specified categories?

45 USD

Client's review of cooperation with Pavlo D.

Development of a printed circuit board: STM32 + CH32V003 (RS485, CAN, HX711)

45 USD

Pavlo seemed competent at first, raised the fee but it did not meet the technical requirements. After a brief discussion, he agreed to redo it, but after that, he stopped responding. In the end, he did not complete the order.

1.0

Yaroslav Antonchyk

Reciprocal Feedback

16 April

Freelancer's review of cooperation with Yaroslav Antonchyk

Development of a printed circuit board: STM32 + CH32V003 (RS485, CAN, HX711)

45 USD

I encountered a technical problem, and it was not possible to get in touch by the deadline set by the client. When I fixed everything, the project was already closed.

3.9

Pavlo D.

Reciprocal Feedback

18 April

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I have a task for the development of a printed circuit board: it is necessary to combine two existing circuits into one device for compactness.

The first board is created to read data from strain sensors to control an RGB LED strip.

This board consists of a CH32V003 microcontroller, a "MAX 485" module, an "HX711" module, and an LED driver (three transistors).

The second board consists of an STM32 microcontroller, a MAX485 module, and a CAN transceiver.

Both microcontrollers (CH32V003 and STM32) must be connected to a common RS485 bus directly on this board.

It is also necessary to properly route the analog part for the HX711 to avoid noise. The board should have mounting holes in specified locations and be within dimensions of up to 100 mm.

The schematic diagrams of the boards have already been developed; what is needed: verification and combination of the schematic diagrams, board routing, preparation of Gerber, BOM, and Pick&Place files for automated assembly (JLCPCB / PCBWay).

Update #1 from 7 April

principle schemes made in EasyEDA and attached in the announcement as EasyEDAPro projects

Proposals 4 Discussions 4

Please select

Artem K.

6 0

Budget: 2000 UAH Deadline: 2 days

In the specified 100x100mm, we will fit, you will receive a complete set of Gerber/BOM/Pick&Place in hand.

Pavlo D.

Winning proposal

13 2

Budget: 2000 UAH Deadline: 2 days

Good time, Kicad 9
At the output, schematic board/Gerber&Excellon, BOM, Pick&Place
As I understand, BOM with stock # from their market, supplemented by Digikey

Oksana D.

37 0

Budget: 3000 UAH Deadline: 5 days

Good day. I am interested in your project. I can complete it in EasyEDA. Write to me, and we will discuss the details.

Roman Chepurnoi

0 0

Projects -
Rating -
Rating 147

Budget: 1500 UAH Deadline: 3 days

Hello! The project is clear and looks very interesting. I have experience working with budget microcontrollers from the CH32 series as well as with STM32, and also in designing mixed signal boards (Analog/Digital).