Update! I have recoded my original water flow sensor code and now its output makes more sense. I now see flow rates of either '0' or a numerical value (float) greater than zero (0) which is what my original code failed to output. I failed to understand just how these water flow sensors needed to be ...

For the sake of clarity - I just want to know when water is flowing. I am not interested in volume.

Thanks.

I have two styles of Hall-effect sensors - paddle-wheel (GREDIA GR-S403) and GREDIA YF-B5 with circular flow rotor) but the flow/no-flow data is confusing and not helpful. A pressure sensor would not work either because our water pressure is not constant.

I just would like to know when water is ...

I have finally begun to receive texts.

My original code made use of HTTP requests. I changed my code to use HTTPS requests and that worked. I also incorporated the use of an API key value for further security.

It could be that StarLink requires HTTPS, but I could never determine if that was true ...

MicroController

Thanks for your feedback. I will tweak my code as you suggested.

I am still puzzled as to why my code sent PHP texts (as coded) perfectly for years and then just stops. Again, I am pointing my finger at StarLink but, thus far, I cannot prove that. This is the craziest Arduino ...

Just ran an http request app and did connect with the website I have been trying to ping. This http request returned all of the index.php's html markup.

Will know more tomorrow. Thanks!

Just re-checked: I think I did close out the connection as follows: Thanks!

Thanks for your comments and suggestions. If you mean PHP error checking I have done that repeatedly. As noted earlier, I can send/receive the text by just refreshing the PHP file in the includes folder, but not from the Arduino app.

You are correct about not closing the wifi connection. I will do ...

I have used a POST method of sending PHP texts for several years and for some reason I can no longer do so. Here is an example of the POST code that I have used:
void loop() {
postData = postVariable + "99";
{
if (client.connect(server, portNumber))
{
client.println("POST /includes/simple ...

In attempt to solve a PHP texting issue I have tried using the ESP32Ping library in an app to determine if the domain in question can be reached or pinged.

PROBLEM - If I include the correct IP address in the 'remote_ip() variable I get 'Success!!'. If I leave that same variable blank (" "), I ...