Send float data with LoRa E32 433T30D

good day to all in this forum: I am very new to the LoRa. I loaded the "Arduino sketch" on both E32 433T30D and they are working well from both sides. The system transmit and receive the " hello World " string correctly but I do not understand how to send float data as like as temperature, humidity, pressure, etc. Could anyone help me please ? Is there any sample code please ? Thanks for all in advance Regards, Ambrogio