embedded mobile microcontroller with GPS -- 2th update

I want to build a prototype which does the following things:

1) position detection via GPS

2) transmission of position data to remote server

3) data connection on GPRS - GSM - 3G-4G mobile network

4) installation on a mobile offroad vehicle powered by 12V

5) continuous (1 x minute) weight detection (low precision required) from a load cell from 0 to 50 kg

6) detection of 8 opto-isolated digital inputs

7) 8 relay outputs

8) low cost display 10 " or 12" high brightness colors

9) power down on power off and autoresume on power on from ignition key

10) connection between close devices ( at most 100mt ) of the same fleet through some RF (wifi, Lora, ..) at low power

11) small autonomous battery


1) on the display I would like to show some general information, like velocity, productivity (i.e. meters/hour), battery charge status. There must be enough space to show some other informations in future.

2) weight will be measured during marching on rough terrain (unpaved land) so I think we cannot have any accuracy on the weight measure. You must provide some filtering to achieve a better measure. Weight will be used to value personnel productivity. I think 5% or 10% accuracy may be enough.

3) one measure every minute (filtered (maybe average or continuous average) starting from 30 or more measure for minute)

4) Communications. Maybe it will be not necessary to comunicate among units/devices. If 100 mt is a big far for wifi I can accept other solution. The direction is not known and may change during operation

The device must be functional at a prototype level using commercially available hardware. I don't want to build custom circuit board. I prefer a ready to use technology.

The firmware must be written preferably in C / C ++. I will evaluate solutions with alternative languages.

The microcontroller must be 16 or 32 bits. I prefer that you use texas instrument MSP32 and / or Espressif ESP. I will evaluate solutions with alternative controllers.

The system must be designed to operate on cars.

-5 °C to 50 °C operation temperature and storage temperature -10 °C to 70 °C.

Data will be stored on a non volatile memory and then periodically send to a remote pc.

My initial idea was to put a cell phone SIM card in each system and use the cellular network for data transfer.

When the vehicles return to their storage area to recharge the batteries, they must be able to download all the data stored during the working day.

Route control is not necessary . Fences control is a good feature, i.e. assign a work perimeter and if the vehicle leaves the assigned perimeter, send a message to the remote portal / server.

The vehicle is already working.

It's a battery-powered asynchronous motor.

There is no need to act on the engine.

Evner: C programmering, C++ Programmering, Elektronik, Microcontroller

Se mere: iphone mobile phone gps trackers, use mobile phone gps tracker, mobile java gps tracker, gps and gsm based vehicle tracking system using arduino ppt, vehicle tracking system project report doc, arduino gps tracker google maps, gps and gsm based vehicle tracking system ppt, gps and gsm based vehicle tracking system using arduino code, microcontroller with gps and gsm, vehicle tracking system using gps and gsm source code, gps tracker block diagram, windows mobile project gps source code, mobile phones gps tracking, windows mobile external gps desktop software, java mobile internal gps, mobile phone gps tracker, write html mobile website gps, mobile phone gps tracking windows mobile, windows mobile collect gps location, pic microcontroller gps mikroc

Om arbejdsgiveren:
( 0 bedømmelser ) Foggia, Italy

Projekt ID: #18761255

16 freelancere byder i gennemsnit €1162 på dette job


Hi, I hope you are doing well. I have expertise in embedded system design and development. I have worked on all embedded technologies mentioned in your project description. I would like to discuss the project Flere

€2000 EUR in 20 dage
(72 bedømmelser)

Hello, I am Anthony from Sri lanka. We are a hardware designing & prototyping company. Why you should hire me ? - I have seven years of experience in the field and have developed many systems. - I ha Flere

€777 EUR in 10 dage
(47 bedømmelser)

hi there we are a team of electrical and software engineers. we have read you specs and we can develop a prototype for you with esp32. let us know if you are interested.

€2000 EUR in 35 dage
(28 bedømmelser)

Good day, I have read the details of your project and I am able to complete this task. I have a lot of experience developing similar projects on the Arduino platform. Please contact me so that we can discuss more detai Flere

€1666 EUR in 30 dage
(44 bedømmelser)

Hello there How are you? I see you want to develop the embedded device that has GPS and GSM/GPRS to track the location and send data to the server. I can do your project well and can start the project right now. I h Flere

€555 EUR in 10 dage
(13 bedømmelser)

Hello, Here are my comments on you points 1) Ok, Noted. Which GPS module you want to use or I can use as per my choice? 2) Ok, Send me detail or explain me which remote server you are using 3) OK, Noted 4) OK, N Flere

€722 EUR in 10 dage
(27 bedømmelser)

i have aready design this product using 4G,3G and gprs and relay with opto elctronics . if you want to see a demo that i will saw you . so i can do your job within a time limit with your satisfaction.

€2777 EUR in 45 dage
(8 bedømmelser)

Hello, I believe I could answer the product development needs of your project in terms of both design and hardware development. I could develop a circuit that houses AVR microcontroller at the controls and we cou Flere

€1866 EUR in 40 dage
(2 bedømmelser)

Hi, I have read your project description carefully. I have worked with microcontrollers(PIC, AVR, ARM) for 6+ years and have enough experience. Also I have made many automatic devices with Arduino Boards, relays, wi Flere

€750 EUR in 20 dage
(6 bedømmelser)

Hi,dear. I understand your proposals and I am very interested in this job - 'embedded mobile microcontroller with GPS -- 2th update'. I am senior software developer and I am able to perform this task in timely manner. Flere

€555 EUR in 3 dage
(1 bedømmelse)

Hello Sir, I am ready to do your job but you need to share more details with me so we cross question regarding your project and get better output i am available and I can start work on your project immediately and a Flere

€2000 EUR in 15 dage
(3 bedømmelser)

Hi This device can be developed with sim800 module which has GPS and GPRS in a single module or similar and ESP 32 which has WiFi/Bluetooth for closer communication. I can show you previous works Relevant Skills and E Flere

€750 EUR in 50 dage
(6 bedømmelser)

Hello, We are a team of professionals. We have experience with Embedded System, Fast Product Prototyping, PCB and Schematic Design, Firmware Development. We have already realized a control system with GPS via 2G Flere

€750 EUR in 25 dage
(6 bedømmelser)

Hello!! "Greetings from us"we have worked on similar to projects to what you are looking for and we are confident, we can exceed your expectation"!! -Till date,we are expertise in skills: C Programming, C++ Programmin Flere

€250 EUR in 10 dage
(0 bedømmelser)

"Hi, Hope you are doing well! Thanks for sharing your project requirement with us. It will be our great pleasure to work on your project. I have checked your requirement, yes we can do it, because we already work on si Flere

€616 EUR in 7 dage
(0 bedømmelser)

i have read throughly your requirement , i have developed the products which uses GSM+GPS integrated ic to upload and download to the server...and i am sure i can help with displaying the data you want to display....

€555 EUR in 10 dage
(0 bedømmelser)