Esp8266 Esp-13 - Testing

Today I found time to do some Contrived Stress and Speed Tests on my latest ERB-EspWebServer Code, using the Esp8266 Esp-13 module.

• For the Tests , the Esp-13 was on a local WIFI network, running at 160MHz, with 4MB of 80 MHz Flash.
• My Workstation is hard wired connected to the same network via a switch.
• The Http Transfer Protocol used is "CHUNKED".
• The Automatically Refreshed (4 Second) Home Page was a little over 30KB.
• My Workstation had 20 Tabs open, each connected to the Esp's Home Page.
• The included Graphic was showing a steady 15.8KB FreeHeap.
• The Test Home Page has; Text, Graphs, Charts, and SVG Images, all Dynamically Created for each Http request.
• Also, during the Test, mDNS was scheduled and updated each 5 minutes, ntp was updated each 30 minutes.
• Diagnostic Trace and Status was being Created and Displayed on the Workstation Arduino IDE Monitor via USB.
• My Normal Workstation work (which was unavoidable) was also being done during the Tests.

If I have my maths , data and methods correct, the results is:
( 20Esp Tabs x 30KB ) / 4Sec = 150KB Per Second Created and Transferred

One of 4 Groups of 5 Esp Tabs

The Esp-13 ran for about 1 hour, before I got GREEDY, an attempted to open more Browser Tabs. At about 35 Tabs things started to FAIL, the update page rate was decreasing, and eventually the Esp-13 crashed and rebooted itself.

Typical Monitor Output

That was fun, . . . the Esp-13 was just . . . Smok'ng !!
I am impressed and very happy with the results.

I will soon update my GitHub Repository with the revised and much faster code.

Let me know if you are interested in participating in a Live Internet Stress Test.

The initial Internet Tests (with my friend Jeff) suggests the Home Page will update at about 6 seconds per page over the Internet, with the Auto Update rate set to 3 Seconds. And, which, of course, is going to be very dependant on my end of a very slow network. So far, we have not done any multi-Tab Test.

Soon, for some more Tests, I plan to connect the Esp-13 to a Very Fast Internet Connection at my Son's house, stay tuned for that.


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

Esp8266 Esp-13 Programming Fixture

UPDATE:
Updated Image with Chip Bypass Cap


Here is my Esp-13 Programming Fixture in Fritzing format.

Esp8266 Esp-13 Programming Fixture

 The Esp-13 and its Adaptor plugs in place of the dual 9-pin headers, see previous blog page.


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

Esp8266 Esp-13 to DIP Adaptor

UPDATE:
Added Links and Details

I recently received my homebrew Esp8266 Esp-13 to DIP Adaptors from OSHPark.com. With only a little sanding of the edges they were ready to assemble.

I made the adaptor available as a free "shared project" on OSHPark.com site. They are inexpensive at $4.20 for a set of three. Note: I suggest you order 9 or 12 (or more) to make the free shipping more tolerable for the good folks a OSHPark.

Let me know if you find this adaptor board useful.

The Adaptor and Parts

Soldering the two Castellated Edge Connections was much easier than I thought, with a little rosin on each edge, solder wicked into half-round-holes to form a nice solder bridges between the two boards.

SMT Headers Installed

The SMT Headers were easily soldered on the back. They are inexpensive and available on ebay, for example: here.

Ready to Use

The results can be plugged into a Solder-Less Protoboard, or into a 18 Pin DIP socket. For production, this adaptor would not be appropriate, but for experiments and prototypes, it works great.

Inserted into a Solder-Less Protoboard

The Esp8266 Esp-13 has 4M Bytes of Flash, compared to 512K Bytes on the typical lower numbered modules. Esp-13's are available from several suppliers on ebay. for example: here.

Note: Currently, Esp-13 information is a little sparse on the Internet.

Esp8266 Esp-13 Face Plate
(18 x 20mm)

Esp8266 Esp-13 Pinouts

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UPDATE:

An another Esp-13 Resource link


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