iot-heartrate-monitor-with-azure-applications VS blynk-library

You should already have the ESP8266 driver installed (link above) and Arduino IDE (also linked above) ready to go. The first thing you need to do, is open up the Arduino IDE and open up the files linked in the GitHub. Once the files have been opened, you should see a file called config.h. In there, you should change the following: your WIFI SSID, WIFI PASS, and CONNECTION STRING. Your SSID and PASS are just the username and password for your home Wi-Fi. Make sure your internet doesn't have any extra steps (for example. account login or redirect) To find your connection string, you must create an Azure IoT Hub. It's pretty simple but if you have trouble, check out this helpful article. Once you have created an IoT Hub, follow these steps to find your connection string. Go to the Azure Portal and find your IoT Hub. On the left side, you should see Shared Access Policies. Then click on Service and you will see four strings. The string titled Connection String -- Primary Key is the one you will want to copy and paste. Make sure you don't share your connection string, it is super important!

https://blynk.io/ (you can find an example that uses their legacy API in one of my releases)

Like it says, to try and keep up with the changing well levels in the summer at my house, I put together a project to monitor well water levels and update a Blynk app.

From the source code found here: https://github.com/blynkkk/blynk-library/blob/master/src/Blynk/BlynkConsole.h

Check out Blynk: https://blynk.io

I have an Arduino Mega 2560 with an ESP8266 module connected to it via Serial1 as outlined in https://github.com/blynkkk/blynk-library/blob/master/examples/Boards_WiFi/ESP8266_Shield/ESP8266_Shield.ino - basically, this sketch works perfectly as is, but I have it personalized, of course.

That Blynk library sucks badly... it's obviously NOT written with ESP8266 in mind, simply grossly hacked from an Uno to sort-of-work. I see a few places in the header file alone where it can hang and cause a WDT, and the 'ping' that's printed is buried somewhere else in the library, undoubtedly another poorly-planned while() or if-else-hang.

Agreed about google and would add clarity. In the field of IT clarity is critical. If OP had said blynk.io, the .io would have clicked with me that it was a web site. Another guy just asked about PS/2 - I thought he meant the keyboard/mouse interface. Others twigged that he meant Playstation 2.