Hello everyone,
I am using the Wireless transceiver nRF24L01+. Is it possible I use the same chip for transmit and receive in different time? I mean I just wanna make some tests. Thank you.
Look into the "ack payload" feature. It lets you put data into the ACK packet that the receiving end sends back. There should be an example called "pingpair_pl" in the RF24 library.
I think you will find OP does not intend to have a receiving end.
He only wants to use a single and transmit and receive with the same unit.
I realize the stated intent is only for testing, but it kind of defeats the purpose of a wireless (or any) transmission which is the to send a signal from point A and receive it at point B.
With a full duplex transceiver, you can transmit and receive simultaneously, but that would usually be between 2 distinct units.
I say spend the extra buck and buy another unit 