Esp8266 WebServer Farm - Again

After several long months, I have reactivated my Esp8266 WebServer Farm.

Use this links to all of my Esp8366 project blog posts.

Esp8266 WebServer Farm

Currently, one of my WebServers can be accessed as: http://esp.wa0uwh.com:8154

The main reason that it has be off-line, is lack of interest, and recently, I could only get the code to compile on the old Arduino IDE (Rev 1.6.x).  The code is quite large and I took advantage of many "tabs" for code fragments, which are concatenated before presented to the compiler.  The new Arduino IDE Revision (1.8.1) is much more strict regarding Header Files, code files, and program structure. There were just TOO MANY errors to correct to keep my interest in solving the problem.

Once started to solve the problems and not getting much accomplished, my Friend Jeff - Ko7m, suggest another IDE, he suggested "PlatformIO IDE".

With little work, I found and installed PlatformIO, but alas, I found similar problems and concerns with it.  But little-by-little after much on-line reading, Jeff and I worked out the best file structures that worked with PlatformIO.

I have not moved the new code structure to GitHub, but maybe soon.


-- Home Page: https://WA0UWH.blogspot.com

Esp8266 - My Experimental WebServer

I have been developing an Esp8266 Experimental WebServer (see previous posts).

There are many issues that had to be over come, and still more that will be worked on in the future. At one point I was just about to give-up on this effort, but my friend Jeff - KO7M has helped with some very sticky issues.
 
Currently my WebServer is about 2500 lines of Arduino IDE code, and compiles to about 300K bytes.

The WebServer provides three major web pages; Home, Help and Admin. Some of these pages are "contrived" to be large (e.g., ~30Kb), to push the limits of; Memory, Heap, and WIFI data transfers. Many issues had to be solved to allow this to all work. Heap and Memory Management has always been an issue. For String Constants, I use a P() and Pn() functions throughout (see code). For graphics, I have used SVG.

Here is a list of current features:

 
/*
 * This Program Provides the following for the Esp8266 as a WebServer:
 *      Home Page Dashboard
 *      Help Page
 *      Admin Page, with WiFi Scan and Network Selection
 *      Page Navigator and Resource Links
 *      Raw Data Query
 *      NTP Network Time (Unix Epoch)
 *      mDNS Service/Client
 *      Optional Page AutoRefresh
 *      Auto AP Timeout
 *      Implements SVG 12/24 Hour Clock
 *      Implements SVG Gauge for FreeMem and Vdd
 *      Implements and uses Html "meter" function
 * 
 */

This WebServer is a little slow, but tests indicate that it will support several browser connections, although only one will be actively be transferring data.

I am going to post my work to GitHub for others to use and/or provide feedback, I will provide the Link here when it is setup.

This WebServer is some what "contrived", and which I will use as a Template for my future Esp8266 projects. Normally, an Esp8266 would be used for data collection or control, but I wanted at least a simplified Stand alone Dashboard and with easy data access and I/O control, I think my implementation fits the requirements.

Here are a few of the graphic elements that are implemented, all of which are sourced directly by the Esp8266:

Esp8266 Dashboard
(home page)

An SVG Graphic

Admin Wifi Scan Page

Occasionally, I will make one of my Esp8266 WebServer available online at: dc02.ebcon.com:8160

There are still more functions and ideas that I want to implement. And, there is lots-of-room for optimization, but I want this effort to be as dynamic and free of limitations as possible.

I will continue to develop this and try to keep the GitHub code up-to-date.


-- Home Page: https://WA0UWH.blogspot.com