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Develop 4-channel datalogger

$750-1500 USD

Closed
Posted over 3 years ago

$750-1500 USD

Paid on delivery
The scope of this project is to develop a 4-channel datalogger and Android application to control it. Requirements for the characteristics of the analog inputs: - number of analog inputs - 4; - signal sampling frequency - 50 kS / s per channel; - 14 bit ADC (better to use 16 bit ADC); - input voltage range: 2 inputs with a range of ± 20 V, and 2 inputs with a range of ± 200 V; - multiplexing of all input signals to one ADC is possible; but preferable to use separate ADCs for each of inputs. The datalogger should record signals into an internal memory (microSD memory card). Device must provide monitoring of signals before recording and during recording. Monitoring should be done using a specialized Android application. Communication with Android application device occurs via WiFi communication channel: either through a third-party WiFi router, or by connecting to a WiFi access point on the device itself. To set up WiFi communication between the logger and Android application, it is preferable to use the BlueTooth communication channel. After recording is stoped, the logger should send the saved data to the Android application. The application should pack the received data in a certain way, and then send it to a remote server. The server will provide the response in the form of HTML document that needs to be displayed in the Android application. The whole process should be controlled from the Android application. Preferably freelancers having experience with development of dataloggers/oscilloscopes.
Project ID: 27927779

About the project

11 proposals
Remote project
Active 3 yrs ago

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11 freelancers are bidding on average $1,328 USD for this job
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Hi Sir, I am an expert engineer and i can design you such datalogging system. I can handle the system with precision engineering. lets talk to me on it. We are professional engineers and developers who do such projects from the last 11+ 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 team of professionals with 11+ 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 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 !
$1,500 USD in 30 days
4.8 (41 reviews)
6.8
6.8
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Best PCB Design Expert at your doorstep! Dear Client, I can design 4-channel datalogger We couldn’t stop ourselves from bidding after going through the description as they are an exact match with our skill set and experience. We have experience in development of channel dataloggers based PCB design and know all the intricacies required to get the job done with perfection. With more than 15 Years of experience in PCB Design and Circuit Design in channel datalogger, We can ensure you best quality work and before time delivery. Following is a brief list of expertise that we are carrying: 1. IOT products development 2. Microcontrollers based circuit design – STM32, STM8S etc 3. Smart Products like Smart watch - GSM/GPRS/GPS etc 4. Wireless Products - BLE/WiFi- ESP32/ESP8266/NRF24L01 5. Low Power Battery Products design – Rechargeable and Non chargeable 6. Power Electronics – Buck, Boost, Flyback etc 7. HTML, ADC, WIFI, MicroSD memory card 8. Analog inputs, Bluetooth, 200V, 14 bit ADC Please answer the following questions: 1 What are your future plans with this project? 2. Are there any specific market standards like CISPER you are aiming? 3. What will be ambient temperature of this product? 4. Are there any other specific requirements besides the ones you mentioned Let’s have a quick discussion for 5 mins where we would formulate a plan of action of how we shall take this project to the horizons of success. Regards Avi Tech Experts Quality is never an Accident
$1,000 USD in 2 days
5.0 (19 reviews)
6.1
6.1
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Best PCB Design Expert at your service! Dear Client, I can provide you all mention analog inputs After going through your project details, I am happy to inform you that these are an exact match with my skillset and experience I have read and understood your requirements and could do it for you in the least time and utmost superior quality. I have experience in WiFi communication and could design it for you as per your requirements. I am having more than 15 years of experience in PCB Design, Circuit Design, Circuit simulation, IOT products development and building electronic products. The expertise of mine is in the following fields: 1. Wireless Products – BLE, Wifi, NFC, LoRa etc 2. Power Electronics- Buck, Boost, Flyback, Half Bridge etc 3. IOT sensors interfacing – Pressure, Temperature, Moisture, PH etc. 4. Microcontrollers- ESP32, STM32, STM8S, RL78 etc. 5. GSM, GPS, GPRS 6. Datalogger, ADC, WiFi, microSD, HTML, Bluetooth 7. Remote server, Internal memory After reading your project details, I have certain queries and suggestions: 1. What is the application of this product? 2. What will be ambient temperature of this product? 3. What are the mechanical constraints to be taken care of? 4. What are the standards that the product would be complying to? Lets have a free of cost call where I can formulate a success plan for this project. Waiting for your reply, Regards Hari Mohan Engineering for one is a magic for others
$1,000 USD in 2 days
5.0 (1 review)
4.7
4.7
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Hello I have more than 15 years of experience in the embedded systems design and pcb design and electronics systems design So let's discuss your project in chat
$1,444 USD in 1 day
5.0 (8 reviews)
3.6
3.6
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At first take my respect.I am a EEE ENGINEER backgrounder .I read your project description I understand what you want. I can do it and give you 100% good work. please leave me on massage on my chart box. Then we will discuss others and start working right now. https://www.freelancer.com/u/alamineee Gratefulness Al.A
$800 USD in 5 days
5.0 (3 reviews)
2.5
2.5
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hi, i can help with out job, I have a lot of experience designing analog and digital circuits, i can get you preliminary design within 5 hours. i design using altium , easy eda. proteus and kicad.
$1,250 USD in 3 days
5.0 (1 review)
1.9
1.9
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I have a experience with dataloggers. I made one of these with fisical GUI made in python, dataloggin to a mariadb database and another GUI web to render the device mote universal. The system has also a telegram alarm to send system state and alerts . I can make your proyect real.
$1,125 USD in 7 days
0.0 (0 reviews)
0.0
0.0
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Greetings, I saw your project and it caught my attention as being an electrical engineer I have experience related to development of mixed signal solutions. I have worked with mixed signal PCB design and programming. Sampling of signals, visualizing it in real time and recording them are included in my experience as well. I have also experience in the development of Android applications. I would preferably use microcontroller and/or FPGA for sampling the required signals. The high voltage signal might be lowered to acceptable voltage ranges as required. The ADCs can be utilized that might have an internal programmable multiplexer. Similarly, all the other aspects of the project can be clearly thought as well. Please give me a text so that we can discuss the project in more detail over the chat. Regards, Abdullah
$1,112 USD in 7 days
0.0 (0 reviews)
0.0
0.0
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i am expert in analog and digital circuit and PCB design with more than 20 years experience. pls give me chance to design your project
$750 USD in 7 days
0.0 (0 reviews)
1.0
1.0

About the client

Flag of UKRAINE
Vinnytsia, Ukraine
5.0
5
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Member since Sep 13, 2008

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