B4J Question Raspberry Pi Datalogger Version 2?

[Mark Read]

I have my app finished and tested on a windows system. As I am home for Xmas I cannot test on the Pi yet. My probelm with screen and serial port I will try and solve with a USB/TTL adapter. So now I thought I was finished but my boss was so impressed, he would like the option to use a tablet.

My question: Pi reads data from serial port -> gives data via bluetooth - > data read by tablet and logged.

What app do I need where and in what code (B4J or B4A)? I realise that there is more than one correct answer.

Many thanks for any help

 

[Erel]

B4J with jSerial and jBluetooth to read the data and send it with Bluetooth to the B4A app on the tablet.

 

[Mark Read]

Okay but now I have problems. Cannot get the bluetooth adapter to work at all.

Is it still possible: Jserial + webserver to read data + B4A app to connect, read and save data?

 

[Erel]

Jserial + webserver to read data + B4A app to connect, read and save data?

Yes. I recommend you to use MQTT. It will be simpler.