For reliable point-to-point data transmission, I have searched over the official document, and didn't find any solution yet about the reliable point-to-point data transmission. The only AT command that I know related is the retrying times, which cannot be directly seen as TCP. Is there a way to achieve this via some configures or I need to manually implement something like TCP?
For the 1 hop broadcasting, I figured out that BH and NH can both do the job in the document, but when configuring the sending machine as BH=1, the broadcast still goes multi-hop in our experiment. NH is a configure that needs to change every node's value, and I believe it should not be the solution to use NH in this situation. Is there a way to use BH or any configures to make 1 hop broadcasting?
The module currently I purchased is XBee PRO 900HP (https://www.digi.com/products/xbee-rf-solutions/sub-1-ghz-modules/xbee-pro-900hp).