multiple slaves for one master with one way transmission

I'm totally beginner for this Arduino stuffs. And I'm going to implement a Arduino system for my house which is capable of control all lights in my house with one android app...and I'm using hc-05 to receive signals from android and send it to the particular light using nrf24l01. i watched some tutorials and read some blogs and i tried with 1 transmitter and one receiver and it worked. But i don't know how to use multiple receivers for one transmitter. Can any one suggest me a tutorial or provide some instructions about how pipe and addressing works ? Thank you

Have a look at this Simple nRF24L01+ Tutorial. It includes an example for a master and 2 slaves that can easily be extended to a larger number of slaves. That example is for two-communication and you could simplify it if you only need one-way communication.

Wireless problems can be very difficult to debug so get the wireless part working on its own before you start adding any other features.

The examples are as simple as I could make them and they have worked for other Forum members. If you get stuck it will be easier to help with code that I am familiar with. Start by getting the first example to work

There is also a connection test program to check that the Arduino can talk to the nRF24 it is connected to.

A common problem with nRF24 modules is insufficient 3.3v current from the Arduino 3.3v pin. This seems to be a particular problem with the nano. The high-power nRF24s (with the external antenna) will definitely need an external power supply. At least for testing try powering the nRF24 with a pair of AA alkaline cells (3v) with the battery GND connected to the Arduino GND.