multi-master modbus on ESP32

$30-250 SGD

Closed

Posted

over 6 years ago

$30-250 SGD

Paid on delivery

implement collision detection and collision control on RS485-based modubus (RTU) for ESP32 / ESP8266. implement in c / c++, use UART2 per default to connect MAX3485 or equivalent.

Software Architecture

Project ID: 15389001

About the project

10 proposals

Remote project

Active 7 yrs ago

Looking to make some money?

Email address

Benefits of bidding on Freelancer

Set your budget and timeframe

Get paid for your work

Outline your proposal

It's free to sign up and bid on jobs

10 freelancers are bidding on average $201 SGD for this job

@ahmedmohamed85

A proposal has not yet been provided

$250 SGD in 3 days

4.9

(108 reviews)

6.7

@JinDongZhe

Hi, sir I read your project description carefully. I can complete your project with best quality in your timeline. I have full experience electronics, electrical engineering, PLC, telecommunication, micro controller programming. I have the full knowledge about modbus(RTU and ASCII). I want work with you. Best regards.

$155 SGD in 3 days

4.9

(81 reviews)

6.6

@kalmane

Your project description is not clear. Do you want to have MODBUS TCP on one end (front end) and MODBUS RTU on the RS485 line (back end) or do you want ESP8266 to continuously poll RS485 line? COllission detection etc. does not arise on RS485 line because MODBUS is a Master/salve network Relevant Skills and Experience Lot ox experienc e in implementing MODBUS RTU, MODBUS TCP and such protocols as well as wireles devices. Can give you a comprehensive solution, once problem statement is fully understood Proposed Milestones $277 SGD - Project delivery. FInal price will depend on FInal specifications Please share all details. Can we discuss?

$277 SGD in 3 days

5.0

(1 review)

1.5

@ztflmm

we have developed various project with ESP8266 and ESP32 modules and we have done product running MODBUS, we are able to take your project Relevant Skills and Experience ESP8266/ESP32, MODBUS Proposed Milestones $155 SGD - prototype code

$155 SGD in 3 days

0.0

(0 reviews)

0.0

@AxiomTechology

Hi, We are embedded development experts since 7 years. And working on application development. We can make solutions for you on ESP32 or ESP8266

$250 SGD in 5 days

0.0

(0 reviews)

0.0

@icinose

i have experience with esp32 Relevant Skills and Experience pcb maker, arduino, c++, c, stm32f4 Proposed Milestones $155 SGD - pcb schematic and arduino program

$155 SGD in 3 days

0.0

(0 reviews)

0.0

@babhansali

Hello, I have good skill and good experience with same thing. I develop one product for one company where I use same things. I had good skill and idea to develop this thing and will do it for you. Relevant Skills and Experience More details will discuss over chat. ESP8266, ESP-01, NodeMCU, RS485 modbus rtu, c, c++, arduino, max485, ESP32 Proposed Milestones $208 SGD - multi-master modbus on ESP32 Can you please provide more information which help to develop this more better please share it

$208 SGD in 7 days