Analog to modbus converter

$30-250 USD

已完成

已发布

将近 10 年前

$30-250 USD

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Write C++ software compatible with the MPLab IDE for a PIC16F877 controller to convert analog inputs to a modbus RS485 output. Specifications are as follows: - Read eight analog voltages, 0-5Vdc. - Upon startup, the system should check if any DS18B20 temperature sensors are attached to the inputs. If so, it will measure temperature on those inputs. If not, it will default to measure voltage. DS18B20 should operate in parasitic mode. - Set up registers 1 - 8 for the analog voltages and/or temperature measurement. - Provide DIP switch selectable baud rate, parity and stop bits. - Provide LED's to indicate the following: - Heartbeat. This should indicate if system is operating correctly or if it is hanging. - Write indication. Shows when the system responds to a request. - Read indication. Shows when the system receives a request. - Provide schematic for system, including in-circuit programming. This can be hand drawn if you do not have CAD available. - Provide complete source code for project. - Code must be compatible with Microchip MPLab IDE. - System must include modbus function 17 compatibility so it can interface with SimpleModbus.

C++ Programming

Microcontroller

项目 ID: 5941165

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@chandra2sekhar

Hello sir, I am [login to view URL] sekhar,[login to view URL],[phd].even though i am new to freelancer ,we have 10+years experience in this field. i can assure u quality service and quality output.i would like to start it ASAP upon your confirmation. since the provided details are not enough, please kindly come in online ,have an discussion in online [login to view URL] bid is just an approach to initiate commmunication with [login to view URL] u satisfied with the work..we can discuss the bid and delievry [login to view URL] on details,if possible i may complete in less than 2 days also....i will be waiting to hear from u in online [login to view URL] u sir

$240 USD 在3天之内

5.0

(37条评论)

6.9

11威客以平均价$429 USD来参与此工作竞价

@Hafeez143

A proposal has not yet been provided

$500 USD 在12天之内

4.9

(7条评论)

5.7

@scribblerspk

Hi, I have 14 year experience in electronics and system designing therefore am very confident that I can do this project,following shall be the expected milestones: 1. Specification requirement document. 2. Schematics using Altium 3. Simulation of code and electronics (Where ever possible) 4. Software delivery. About my self , you can review my profile and my clients comments. Regards.

$631 USD 在15天之内

4.9

(10条评论)

5.4

@l3kengineering

Hello Mr. I have this project almost done (working with othes PIC), so the migration is easy, I'm using the functions 3 and 16, and is easy to change to function 17. Looking forward to work with you, Regards Leo

$111 USD 在3天之内

4.2

(8条评论)

5.2

@cliscwang

Hi. thanks for your posting. I read carefully your project. I'm exciting in your project. I have enough experience in pic and mplab. I'm looking for Microcontroller project. I have developed pic program by using mplab. it is common c language. your project isn't difficult for me. I'm sure that you 'll be satisfied about my works. I can finish your project in correct deadline as your description. now, I'm waiting your nice reply I'm looking forward to seeing you. thanks for your looking clisc wang in china.

$130 USD 在5天之内

5.0

(1条评论)

2.9

@jmaranhao

I have over 10 years in firmware development of small MCU projects ranging from 8-bit MCUs to 32-bit Arms. I have experience in schematic design and have a program to create the schematic files. Born and live in the USA, time differences are not an issue and my work is both timely and professional.

$1,111 USD 在3天之内

0.0

(0条评论)

0.0

@ElectrSoftDesign

Hello..Im Electrical-Electronics Engineer with Software Developement..I have great experience working as a Autocad,Eagle,Proteus. .NET Developer and as a ASP Developer throughout my career. I will benefit you and your company if hired by you. I have exceptional skills in the areas of .NET, ASP and C Programlama. I can deliver projects on time and to a high standard. I also have experience working with C# Programlama. I am ready to be hired by you now.

$224 USD 在5天之内

5.0

(3条评论)

0.0

@dimonlp

I have extensive experience in programming PIC16Fs in MPLab C environment, which is what I've done for several years for Creek Audio and my personal projects. Most of my work was embedded design/programming and control of various sensors, from temperature to high-speed digital audio, and of course serial-based protocols. I have Pickit3 programmer and I would be able to get hold of the parts very quickly through suppliers Farnell or RS. I can prototype the circuit quickly and provide you with professionally drawn schematics (your choice of CAD, I have all the major ones). Please don't hesitate to get in touch if you would like to find out more about my experience. Best regards Dmitry

$444 USD 在10天之内

0.0

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0.0

@madokaaukawa

Knowledge of microcontroller architecture and organization Programming skills: Assembly, C/C++, MATLAB, C#, Java, Verilog HDL/VHDL Networking Knowledge: TCP/IP, UDP, TFTP, BOOTP, DNS, DHCP, etc. High-speed lab equipment such as spectrum analyzer, oscilloscopes, signal generator, DMM, etc. Software: P-CAD, Altium Designer, OrCAD, Labview, AutoCAD, MPLAB, IAR, CodeWarrior, KEIL, TI CCS, Eclipse, Microsoft Visual Studio, TFS, Linux bash script Develop real-time embedded firmware based on ARM M3/M4 Write Ethernet, MODBUS, and CANBUS communication stacks Control Interface include digital/analog IOs such as: stepper/DC Motor, sensors, encoders, relays, cameras and indicators Design RS485 serial and CAN bus boot loader Write high-level windows application to interface low-level modules

$320 USD 在5天之内