Confirmation that data instructions were executed

[MJM]

When I switch a light, garage door etc remotely with an App with a signal over a home WiFi to an ESP13 shield on an Arduino Uno I really would like to see confirmation that the signal was received and executed by the Arduino. A few words in a textbox on my cell phone is what I am after.

To do this I want to display a line of text transmitted by the Arduino Uno with an ESP13 shield (Settings: ESP8233-ESP13 Settings for Project 3.bmp) to a textbox on an Android cellphone. The Arduino sketch that produces the text is attached (ESP13_ESP8266_Project_3_sketch_v6_to_Android.ino). With the App TCP/UDP Test Tool I can see that the data is transmitted and received properly (PrtScr_2017-02-11_193339.jpg). When I connect my browser to the ESP13 the data appear too (Typical Browser output for Project 3.bmp), except the data only start to appear after a long delay, such as half an hour (Why? any ideas?).

To put the data in a textbox on my Android I want to use an App developed with MIT's App Inventor 2 program. To do this I used the blocks and designer code (App Inventor Blocks.bmp, App Inventor Designer.bmp, Get_Text_FROM_Arduino.aia). I could not get it to work and I could not find an example that shows how. What changes do I need to make it work?

Thanks.

[paxi]

It seems you don't use ESPEasy, so first off I'd say this is the wrong place to ask.

Anyway, here's my very simple approach to get espeasy to interact with android:
From the scripting-app called "Automate" a http-get request triggering an event is sent to an esp-module running espeasy. The response comes immediatly in form of the string "OK". This string is written to a variable in automate and then displayed as a toast message but you can also throw a notification or a confirm dialog. Prior to the http request I use a ping decision block in automate to check if the esp is reachable.

Hope it helps.

[MJM]

Thanks for your suggestion. You are right: I have not used ESP Easy, but I posted it here because I am trying to control something. I'll have some studying and digging to do to to try out your suggestion. It follows an totally different line of thought to obtain a solution. If I succeed I'll let you know.
But I continue hoping that there is a straightforward solution possible using the Arduino-App Inventor combination.

[paxi]

Don't hesitate to ask for assistance with automate, I use it a lot.

Without knowing anything about the app inventor and minimal knowledge of object oriented programming I just noticed that you use two different "web" objects: webviewer1 and web1. Maybe the whole point is to use just one - if the .gotourl method of webviewer1 retrieves data I don't think the .gottext function of web1 will be triggered.

Edit: just had a quick glance at app inventor, looks very nice and worth digging deeper into - thanks for the pointer.

[macuira]

Hello, I have also worked with MIT AI2, you can use the "response code" and check for 200 response which is the "OK" response from the server.
Attached my working project, a garage door control usin an ESP-01, please change the attached file .zip to .aia so yo can import it on MIT AI2

[MJM]

Thanks for the example, I am going to study it in great detail to see what I can learn!

Kindest Regards,
MJM

[Offshoreram]

Hi, I am looking for the textile designing tools here in Australia. Any help for me? Do you think with these software I can design the coverlets?