Remote Weight Sensing Through ESP8266 : Technical Doc Prepared By : Virtual Cybertrons Pvt . Ltd - August , 13 2021 Purpose of this document Part 1: Providing the necessary inputs to deploy and make changes to code for the remote weight sensing tool. Part 2: Providing Steps to connect the device to Wifi Network.
Server Side Setup The tool needs a remote server to push data. This can be any POST or GET api coded in any tech stack capable of receiving the data. For this particular prototype we have used core php hosted on a linux VM. To start, please set up a VM on any of the cloud providers like AWS, DO, GCP, etc. The following references can help setting up either Nginx or Apache.
Install Linux, Apache, MySQL, PHP (LAMP) stack on Ubuntu 20.04 OR Install Linux, Nginx, MySQL, PHP (LEMP stack) on Ubuntu 20.04
Clone/Download code from github to root of your server
https://github.com/virtualCybertrons/Server-Code-ESP-Weigh-Machine
Make changes to the code as per your configuration
Go to the following files and change these four lines below //mysql installation with the details of your mysql installation; you may keep the dbname ‘iot’ or if changing it then change it accordingly in db .sql Files Post-data-api.php Chart.php Post-data/a.php Post-data/index.php Lines to change $servername = "localhost"; $dbname = "iot"; $username = ""; $password = "";
Upload file “db.sql” to your mysql This reference can help you importing the DB file in case of issues Click Here For Help Once you visit the ip of your server in the browser, It should show a Graph page.
Firmware Setup On Device Download the Arduino IDE from : https://www.arduino.cc/en/software
Clone/Download code from github https://github.com/virtualCybertrons/Firmware-ESP-Weigh-Machine
Make changes to the code as per your configuration Open the downloaded file in Arduino IDE, make necessary setup as guided in this reference and proceed with the following changes as per your configuration. Go to line no 144 that is http.begin("http://yoururl.com/post-data/"); //Specify request destination Update the line with your FQDN for the web software and add /post-data as above to the url Now connect the device to your computer's usb cable and click “upload” in arduino
Wifi Connection Setup On Device After successful setup of both Server and Device, Connect the device to the Powersource. The green Light indicates the connection status. If it's on the device is connected to the server, in case it’s not :
The Device will create its own wifi network. Use your mobile or system to connect to the wifi network created by the Device. After connecting try visiting any URL and the page will redirect you to the network Configuration Page. Select/Type in your desired Wifi Network SSID and provide the Password. Click on Save/Submit and Wait For the Green Light to turn ON.
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