@johnpiantanida The sound of crickets leads me to believe this project has been abandoned. If so, I understand... but please someone respond and let us know what the plans are so we can plan ahead.

@panos29 It's more about the ADC range, which is about 0.07 - 1.1V for the reading between 0 and 4096. I assume you would always need some kind of pre-amplifier/buffer, at least to protect the esp32 against damage,, and if you do not need to take values at hight speed, you can always use averaging to reduce the noise. The esp32 chip is told to have a built-in preamplifier, but that is not supported by Micropython, and I do not know whether it works.

Is it possible to build reliable app with parse alternative like Back4app ?

Android and WiPy I' m working with this app from 2016 without problems. Remarks!! The used Android apps that I am using from the 2016 are the one that I find when I faced the same question that you have. Install(*) from Google Play Store the Mocha Telnet free application to open a micropython REPL session. To load drivers on WiPy boards, install AndFTP ( in my case) . Connect to WiFi WiPy network using www.wipy.io as password. In order to get the Python REPL, open MochaTelnet and from the menu select Telnet Settings and enter the IP 192.168.1.1 ( for WiPy 1.0) or IP 192.168.4.1 ( for WiPy 2.0 and LoPy) and the Telnet port number 23. Now return to main menu of Mocha Telnet an select Connect and at the login prompt in telnet terminal enter micro and at password prompt enter python. That is all. Federico Monaldi -July 10 2016

@wituwitu Did you find a way to solve this problem ? I'm having the same issue, I'm pretty sure I'm doing something wrong but I cannot find a solution

@scott Thank you for you reply. I tested the server side notifications yesterday and my first tests worked so it looks good so far.