Hi guys,
I am integrating a contactless payment system into a vending machine managed by App Inventor. I purchased the myPOS Sigma device and I want to connect it via Bluetooth (I have already selected this setting on the device) and I am able to connect since when I open the SerialOTG serial port, the POS stops waiting for the connection.
On their website, there are instructions on how to send the data (API Reference | In Person Payments | myPOS Developers) but trying various sending methods, I cannot get any response (STAGE=1 command see link Stages | In Person Payments | myPOS Developers).
The data I am trying to send are as follows:
PROTOCOL=IPP\r\n
VERSION=202\r\n
METHOD=INIT\r\n
SID=05642d02-009d-479a-b43e-772994edd241
STAGE=1\r\n
STATUS=0\r\n
which I have converted to HEX in my app (also adding the 0x prefix).
Has anyone had similar experiences and could help me out?
Thanks!!!
