Find Jobs
Hire Freelancers

Modbus with Raspberry Pi

$750-1500 USD

Zavřený
Zveřejněno před více než 5 roky

$750-1500 USD

Zaplaceno při doručení
We use a 3rd party wireless monitoring system. A system has a receiver and wireless sensors. Each sensor has a unique ID and some data. It sends this information to a wireless receiver. Receiver has a serial port. We want to read sensor values from receiver's serial port and create a modbus register list at Raspberry Pi. Raspberry Pi will work like a Modbus Master and it will use one of USB port as a RS485 via USB-RS485 converter. I will give sensor data type and details.
IČ projektu: 17261498

O projektu

33 nabídky
Vzdálený projekt
Aktivní před 6 roky

Chcete si vydělat nějaké peníze?

Výhody podávání nabídek na Freelancer

Stanovte si rozpočet a časový rámec
Získejte za svou práci zaplaceno
Načrtněte svůj návrh
Registrace a podávání nabídek je zdarma
33 freelanceři nabízejí v průměru $1 250 USD za tuto práci
Avatar uživatele
Hi Sir, we have worked well with raspberry pi and modbus protocol we have necessary hardware in our inventory that we can used to demonstrate the results to you. Lets talk to us on this project. We are professional engineers and developers who do such projects from the last eight years. We offer you our skills for this project at very low rates comparatively without compromising the quality of work. Let me introduce you to our company TURKTRONICS. We are TURKTRONICS. We are professionals with 8+ years of experience in Circuit designs, PCB designs, embedded system solutions, mobile app development, programming and software development. We provide complete end to end solutions for all kind of development projects. IOT is our strong point. In this bid, prototyping and shipping cost is not included however paying extra slight of money to include prototypes. We have the manufacturing facility and we produce the very high standard PCB boards and send ready products to customers doorsteps via DHL. We care about our clients and help them to get out of any potential problem throughout the projects and also give post completion technical support if ever required. We are very much looking forward to hear from you on this in coming days! Cheers!!! Ahmad Lead Technical Engineer TURKTRONICS An Internet of Things Company !
$750 USD v 15 dnech
4,8 (58 recenze)
7,1
7,1
Avatar uživatele
Hi, I hope you are doing well. I have expertise in embedded system programming and development. I have reviewed your project details and I understand your requirements which are Wireless communication with Master and Sensor Nodes. I would like to discuss the project in more details. Looking Forward, Khawaja
$1 444 USD v 20 dnech
4,8 (95 recenze)
7,2
7,2
Avatar uživatele
Hello, Have a nice day. We will help you to develop Pi code for reading data thru sensors and uploading it to a database (web based). Please provide us details like schematics so that we can send a proposal. Best Regards, Shahbaz.
$1 500 USD v 30 dnech
4,9 (74 recenze)
7,1
7,1
Avatar uživatele
Hi, I am a post graduate power electronics engineer and having very good experience in product design and development. I am excellent in embedded design & programming using pic, dspic controllers and MATLAB codding for Power projects, Boot loaders, Bluetooth & GPS designs,CAN communication, EEprom. UART , RF circuits ,Protocols for networking, wi-Fi routers,OBD diagnosis with CAN bus protocols, Electrical vehicles and AC drives, stepper motor controls. I designed sine wave inverters for standalone and grid tie Inverters. I designed projects like Off line UPS up to 3 KVA, 5kW motor controller for EV,synchronous rectifiers, Solar MPPT chargers, Solar trackers, Battery chargers ,Grid tie inverters design with PLL and feedback control circuit emergency light of 66W and Online UPS control cards, Battery Charging power supplies, LED drivers for PWM controlling and dimming, SMPS, Power supplies. I have experience in schematics and PCB design experience in Altium and ORCAD. I am ready to work for you. Please contact for further discussion.
$1 500 USD v 20 dnech
4,9 (61 recenze)
6,8
6,8
Avatar uživatele
Dear Sir, I am an electrical engineer with 19 years experience in this area . I have built a project with pi + rs485 I am interested in your project : Modbus with raspberry pi Please send a private chat message.
$1 250 USD v 20 dnech
4,7 (27 recenze)
6,7
6,7
Avatar uživatele
Hello, I have read the details of your project and I am confident that I can deliver it. Please contact me so that we can go over the details of your job. thank you.
$1 472 USD v 20 dnech
4,8 (53 recenze)
6,6
6,6
Avatar uživatele
Hello. Greetings of Peace. I have great experience in developing custom electronics systems. I have developed an automation for a solar plant and have created many other industrial solutions. I have designed many applications using MODBUS over RS485. I would like to offer my services to you using custom-designed hardware based on microcontroller to have real-time performance. I would like to have the opportunity to work with you and would love to discuss your requirements in detail. Please have a look at my portfolio for my detail work. https://www.freelancer.com/u/krunalbhongade.html Thanks and Regards, Bk Krunal
$1 000 USD v 20 dnech
4,9 (28 recenze)
6,3
6,3
Avatar uživatele
i good day very high skill in RF Senior ENGINEER has more of 40 years’ experience in this profession, developing Hardware and Software Expertise in video processing and associated simulation and evaluation tools and methods, communication I2C, I2S, SATA, RS232, RS422, RS485, USB, TCP, Bluetooth, RF433, Wi-fi, GSM, GPS, GPRS and any other serial communication. Producing Analog/Digital board designs, layouts and modifications or any other multi-layer PCB design, Verifying designs and layouts. Preparing documentation for manufacturing. Gerber, contact with partner in China for make PCB in 32 layers Develop Digital/Analogue electronic board architecture and design by developing product concept; Researching, analyzing, selecting, and applying design concepts, approaches, techniques, and criteria; Adapting and modifying board design alternative architectures; developing and evaluating new analogue/digital architectures and algorithms; defining functionality and requirement specifications. Developing board layout including 3D model, size, performance, power consumption, and cost. Establishing integrations; preparing drawings, schematics, diagrams and Gerber’s . Collaborating with Related board design teams; evaluating components, materials, and suppliers; Identifying and resolving design integration/interface issues thermal problem Determining and establishing design specifications and safety standards.
$1 250 USD v 45 dnech
4,9 (47 recenze)
6,5
6,5
Avatar uživatele
Real time experience on Raspberry Pi to build IoT devices. I will work to move this project successful. 15+ years of experience on Computer Language and Digital Electronics.
$1 500 USD v 30 dnech
5,0 (18 recenze)
5,6
5,6
Avatar uživatele
I would like to offer my services for this project I have extensive experience in MODBUS , RS485 as well as Raspberry PI and definitely can give you the solution as per your specification. You have mentioned: "Each sensor has a unique ID and some data. It sends this information to a wireless receiver. Receiver has a serial port. We want to read sensor values from receiver's serial port and create a modbus register list at Raspberry Pi. Raspberry Pi will work like a Modbus Master and it will use one of USB port as a RS485 via USB-RS485 converter. I will give sensor data type and details." It is not clear how the sensorr receiver will output data on serial port.(or is it RS485?) Will sensors data be available on one serial port? Does that conform to MODBUS ? We need some more details before deciding the scope of work Thanks
$1 444 USD v 20 dnech
5,0 (2 recenze)
5,3
5,3
Avatar uživatele
Hi, I would love to assist you in making this Wireless Monitoring System using Raspberry Pi. Please message me to discuss other details. I doing MS Electrical Engineering and have more than 3-years of experience in wireless sensors and Raspberry PI. If you want to know more about skills, or expertise, please feel free to message me. Looking forward to working with you. Thank you Best regards Zeeshan
$1 250 USD v 20 dnech
4,7 (23 recenze)
4,8
4,8
Avatar uživatele
SOLACE Engineers Inc. is an engineering solutions' company working in various fields of engineering. We have performed many projects on various freelancing platforms and have experienced engineers to get your tasks done within time with quality and affordable price! We have great skills and expertise in the area of Embedded System. In Embedded System Solutions we provide services like embedded systems designing, prototyping & manufacturing, analog and digital electronic circuits designing & manufacturing, PCB designing, schematic designing, BOM management & sourcing, Embedded C/C++ coding of micro-controllers and producing finished consumer products. We are highly proficient in Altium, Proteus, Eagle, OrCAD, MPLAB, MultiSIM, PICC-CCS, Arduino, XBee, Raspberry Pi, GPS, GSM, RFID, BLE, DC Motors and the list goes on. IoT development is also one of our main solutions. In addition to this, we also provide research & development facilities, technical articles and research papers, CDR, CER, assignments, guidance, and consultancy in the field of electronics engineering and embedded systems. We also have skills and expertise in the areas of Product development and production; Renewable Energy (especially Solar System); IT & Networking Systems; Software development; Business Management; Writing & Documentation (Technical, Engineering, Business), etc. We are hoping to be hired by you for your job so that we bring your project to completion in the least time with nominal price !
$1 250 USD v 20 dnech
4,4 (4 recenze)
4,8
4,8
Avatar uživatele
Hi I have experience of Raspberry pi usb control system. I am available now. Also, now, I have raspberry pi 3, and rpi zero w. Also, I have one wifi sensor ESP-8266. I can start now. Let 's discuss in chat.
$1 250 USD v 20 dnech
5,0 (2 recenze)
3,5
3,5
Avatar uživatele
Merhaba, I am a Python Engineer and an expert with Raspberry Pi and Linux System programming as well as handling sensor data from the Raspberry Pi itself. Feel free to check my portfolio regarding the Raspberry Pi experience. Please also send me details regarding the sensor data. Kind regards, - Hefnawi
$1 333 USD v 11 dnech
5,0 (2 recenze)
3,3
3,3
Avatar uživatele
Hello, I have read the job post, I have practical experience with same thing. Lets get connect. Thanks, Bhavin
$1 444 USD v 30 dnech
5,0 (3 recenze)
3,3
3,3
Avatar uživatele
Hello there I already worked with rs485 protocol where I read data from esp8266 and send it to server so I will do same thing for you using raspberry pi too. please have a chat on requirment and will give you the best solution among which you have to choose and will design system and provide it to you.
$1 400 USD v 15 dnech
4,4 (4 recenze)
3,8
3,8
Avatar uživatele
I am an expert in Raspberry Pi projects.. I am highly motivated and very much interested on this kind of projects. Give me further details on the chat please. I would be glad to serve you.. At the end don't forget to give us a good rating, if you are satisfied with us.
$1 111 USD v 5 dnech
3,5 (5 recenze)
3,2
3,2
Avatar uživatele
I have 3+ years of experience in rapsberry pi based developement. Have worked on modbus protocol for predix based IoT project where we had implemented modbus based client server module using raspberry pi for data gethering using diffwrent sensors.
$750 USD v 15 dnech
4,9 (6 recenze)
1,4
1,4
Avatar uživatele
I have seven years experience in embedded systems hardware and software design if you assign to me I will deliver with good quality and within the time.
$750 USD v 20 dnech
0,0 (1 recenze)
0,0
0,0
Avatar uživatele
I have 5 years experience over embedded system design
$1 333 USD v 20 dnech
0,0 (0 recenze)
0,0
0,0

O klientovi

Pochází z TURKEY
Istanbul, Turkey
0,0
0
Členem od čvn 13, 2018

Ověření klienta

Díky! Poslali jsme vám e-mailem odkaz pro získání kreditu zdarma.
Při odesílání e-mailu se něco pokazilo. Zkuste to prosím znovu.
Registrovaných uživatelů Zveřejněných projektů
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Načítání náhledu
Bylo uděleno povolení ke geolokaci.
Vaše doba přihlášení vypršela a byli jste odhlášeni. Přihlaste se znovu.