WIFI SD CARD transfer using ESP32 Arduino with cellular upload to server (I have existing code)

I am a mechanical engineer who has worked with many domestic USA vendors and overseas vendors on embedded products. I currently have one product that needs to be ported from a Tiva MCU to an ESP32. All current code is written in c.

We currently have code written for TM4C1294NCPDT on a custom board with 2G modem. However, now I want to use an inexpensive ESP32 board with external SD card and external Xbee LTE M Module.

STEP 1: Connect to WIFI SD card and copy pictures over to board SD card – This Code has not been written

Digital pictures are located on a WIFI SD card in external camera.

This card…. [login to view URL]

This SD card natively runs a web server that allows images to be saved on it from a camera while also allowing a WIFI device to connect to it via it’s ADHOC network and read its contents.

This is described in a similar fashion here....

[login to view URL]

1. Use ESP32 board with wifi capability to connect to WIFI card

2. Automatically read directory and see what images are located on card

3. Download the images contained on WIFI SD card to a local SD card located on the Arduino.

4. Have a confirmation check that image has been transferred OK

5. Delete Image from WIFI SD card

Step 2: Connect to our server and read user settings. Based on settings perform actions, scale and upload images to our server – This Code has been written but will need modified for XBee module.

1. Use Xbee LTE M module to connect to our sever and check for several settings…..

a) Save Preference: Store scaled image in SENT folder on SD card after upload OR Delete image after upload

b) Synchronize Settings: We can delete this code, I will have it deleted on website as well

c) If Memory Full: Delete oldest one OR Delete All images on SD card

d) Image Compression: scale image 1/2 or 1/4 or 1/8 size

e) Image Transmission Type: Individual uploads images each time there an image to be uploaded in the SD card OR Group will do an upload of multiple images at the specified time by user. Since board will most likely power on many times a day, it’ll check the current date and time provided by cellular unit to see if it’s time to upload images

As mentioned, this code is already written, however it used the 2G modem and not an Xbee module.

2. Upload some variables such as LTE signal strength, Battery Voltage, SD card memory percentage (There is another SD card memory percentage but this will be deleted on the website and can be removed from the code as well)

3. Scale the Image that was transferred from the WIFI SD card to the local SD card. Use jpeg code to scale images to ½, ¼, or 1/8 size by using tjpgd.c (decompress JPG -> BMP) and savejpg.c (BMP -> JPG). This code is already written as mentioned above.

4. Use Xbee module to upload to our Server. This code is written but uses the 2G modem.

5. Save Image to SD folder or Delete it based on user settings above. Code already written.

All reference documents, drawings, schematics, etc can be provided once you have been selected. An NDA may be required from you before sending source code and documents. Please let me know if you have any issues with this.

Taidot: Arduino, C# -ohjelmointi, elektroniikka, Mikrocontroller, Piirilevyn asettelu

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Tietoa työnantajasta:
( 0 arvostelua ) Dover, United States

Projektin tunnus: #17804815

18 freelanceria on tarjonnut keskimäärin %project_bid_stats_avg_sub_26% %project_currencyDetails_sign_sub_27% tähän työhön


Hello, i have completely read your proposal and fully checked necessary data such as [login to view URL] [login to view URL] I comp Lisää

$2000 USD 30 päivässä
(19 arvostelua)

Hello sir/madam... I can make your application as per requirements described in your bid. I have enough experience to manage this project. If you are interested we can discuss more about details Regards

$2000 USD 20 päivässä
(113 arvostelua)

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 Lisää

$1666 USD 10 päivässä
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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, I Lisää

$1666 USD 10 päivässä
(52 arvostelua)

Hello, I am very interested in your project. I have an expirience with ESP32, GSM 3G modems, Arduino and Tiva. Also I worked with WiFi files sending and SD cards. Best regards, Vyacheslav.

$1500 USD 15 päivässä
(22 arvostelua)

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$1500 USD 10 päivässä
(3 arvostelua)

Hello, I am an experienced embedded system engineer with 8 years of experience. I have been programming ESP32 projects for the last 2 years. Please hire me. I am also a phd in robotics and automation system.

$1555 USD 10 päivässä
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I can do your job.

$5000 USD 30 päivässä
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We are a team of engineers having expertise on embedded domain. We have worked on several embedded linux/android SBC like Wandboard(IMX6Q), AM335x-sk, Dragon Board (Qualcomm), Pi0W, Pi2 & Pi3, Beagle Bone (Black & Gre Lisää

$2222 USD 10 päivässä
(5 arvostelua)

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$2000 USD 45 päivässä
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$1500 USD 15 päivässä
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$2000 USD 10 päivässä
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$2000 USD 10 päivässä
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C Hello, Hope you are doing fine. Please go through the questionaire & revert me back [login to view URL] are your project core features & Functionality? 2. Who's building the application program interface (API)? 3. Do Lisää

$1666 USD 10 päivässä
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Hello. The general task is understandable: connect to the SD card, download data from it and upload to your server via LTE modem. A microcontroller of our choice or do you want to use only an ESP and 4G modem without a Lisää

$1666 USD 10 päivässä
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$1000 USD 12 päivässä
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