This is an andorid mutlimeter! Compared to conventinal multimeter, your moblie app will be the multimeter and it can be accessed using the bluetooh connection. The main advantage of this is very compactable as this is an mobile app and there will be a small prob device which has no display or buttons etc that can be easily carried, instead my JBU multimeter will be processing all these. I am uploading a short video of its working, so that you can have a better understanding.
Main hardware used : ESP32 module.
The main libraries used are : JJOE64:GraphView - For graphical representation on input signal TextTOSpeech - For speak out the readings BluetoothAPI - For connecting the prob - bidirectional communication
##Video1: Building JBUmeter
##Video2: Mobile Applications Working.
JBUmeter.mp4
For more information regarding JBUmeter, please do email me @ jebukthomas@gmail.com.