I was able to adapt the hello_sensor application to my board and I'm able to send data from the sensor to the client (or phone) but not the other way round. How can I get the client to take the uart data and transmit to the slave?
Thanks in advance for your help.
You can do a GATT Characteristic write from the Client (phone) to the slave with whatever UART data you have in the application.
Please have a look at Hello Client example and test Characteristic writes with Hello sensor example.
Thanks & Regards,