ESP32 Data logger & Data History displayed.

$10-40 USD

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약 1년 전

$10-40 USD

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My project is for an ESP32 data logger and data history display. I need to log serial data from a sensor, which will be displayed in the form of a chart on a html [login to view URL] data will then be stored in an SD card for future reference. I am looking for a freelancer with expertise in this project. I have a working sample. The esp32 is on APmode, uses a sd card to store the requested data from a sensor. The ESP32 host a webpage that users can log in and see the data stored, data is pulled from the SD card via http request on a file called data.txt. My problem is as follows: The chart only displays 20-40 data points stored. But if there is more, like weeks or month worth of data points it freezes or re-starts. I figured it has to do with the amount of time the http request takes due to the large amount of time it takes to generate the response. So, I thought! Why not download the whole file like an attachment on the user device and then read that file ([login to view URL]). Let me know your thoughts!!

프로젝트 ID: 36254538

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13 제안서

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13 이 프로젝트에 프리랜서들의 평균 입찰은 $34 USD입니다.

@yumnasyed8

Hello Leonel F., I AM READY TO START THIS PROJECT RIGHT AWAY. I have read your details posted in " ESP32 Data logger & Data History displayed. " project. I am really confident to take work on this project and I will Provide you Best quality work with Great Options in Fair price and less time depending on the complexity of your design. I have experience of more than 7 years in C Programming, Website Design, C++ Programming, HTML, Arduino . I am an expert in this field. For my quality work, you can check my Portfolio and reviews: https://www.freelancer.com/u/yumnasyed8 Let’s have a quick conversation on the details to proceed further with this project. ready to serve you with my best services. Regards, Yumna Sh

$26 USD 1일에

5.0

(62 건의 리뷰)

6.4

@deeproadrash

Hello, I have experience working with data logging in file system, SD card and Webserver implementation with graphs. We can discuss in detail over chat.

$50 USD 5일에

4.9

(53 건의 리뷰)

5.8

@elect2eng

Are you sitting in a tight loop while datarequest is done? If you can share the code, i can cgek and suggest..................

$50 USD 7일에

4.9

(48 건의 리뷰)

5.3

@Engrusman877

Hi There, I am a senior Ph.D. Level Expert and Have more than 5 years of experience in electronics and embedded design. I designed data logger types projects many times using microcontroller, arduino and esp32 as well. Just check my profile and share your details. Time and Budget will be discussed. Thanks

$25 USD 7일에

4.6

(31 건의 리뷰)

5.5

@Sanjaysingh2018

I am professional embedded IoT engineer. I can do the job for you. I have already developed similar system with esp32. Drop me message to discuss more . Thank you

$55 USD 7일에

5.0

(16 건의 리뷰)

4.5

@Adeel2k14

Greetings thanks for posting the project there i am electrical engineer i have expertise in embedded firmware development, PCB designing and circuit designing. I can work on latest engineering tools to complete your task. In my experience i have successfully completed many projects in the field of embedded systems and electronics. My major expertise includes. 1. firmware development of microcontroller and microprocessor (C, C++, Python). 2. PCB designing and Circuit designing. 3. Power electronics 4. IoT and automation 5. interfacing of sensor and actuators with microcontroller and microprocessor. I am sure you will consider me for this task when you look to my portfolio, I will provide you the best quality work as per your requirements at reasonable budget. You can trust on me; your satisfaction will be my priority. Looking forward at your earliest response. Best Regards Muhammad Adeel

$25 USD 7일에

5.0

(10 건의 리뷰)

4.2

@Aravindsanjuoo7

I read your project if you have internet connectivity there are many other option which make your data processed accordingly for your need if you have api sever at the backend it will process the data and display it to your accordingly to your need i have done many project on esp32 in data processing i can guide you to complete this project effectively

$25 USD 7일에

5.0

(4 건의 리뷰)

3.8

@niikk93

Hi, I'm an experienced embedded software engineer that works with ESP32 every day. I can help you easily Feel free to contact me for more info

$25 USD 7일에

5.0

(3 건의 리뷰)

2.0

@AzharPlus

Hi, I have 20+ years of experience in hardware and firmware development and have bachelor degree in electronics, position holder. I have work on countless projects related to ESP32. I think in your case, accessing complete file takes time and hence freezing effect. If memory overruns or too much time spent on file process then also system crashes and restart happens. My solution to the problem is to maintain small array on ESP32 which pre calculate graph to show. Further i can discuss after seeing you current code....

$40 USD 10일에