@AWI said:

Can you share what is in the box? I am getting curious..

arduino_nrf24l01.rar

There is a trick.
Arduino pro mini you can always pull out and replace prereproshit. For example, you can take out and do it with low power consumption and frequency of 1 MHz.

For me it is important that the board did not have anything extra. Everything else is a module connects to the motherboard.

Here are photos of how I put together in a box:

Else you can connect i2c sensors or serial sensor (CO2 - K30 for example) or analog sensors.

Now i wait first 10 pcb manufacturing by seeedstudio.

Today completed the universal wiring boards connected devices smart home.
According to my idea to add the device need to buy:

• Arduino Pro Mini
• Nordic (NRF24L01)
• Sensors (dht22 1pc, ds18b20 up to 16 pieces per unit) and relay switch 2 channels.
• a box
• AC-DC to 5v 700mA
• Buttons 2 pcs
• PCB
  Further, all connected, put in to box and enjoy the new device.

Board 50x50 mm.

arduino_nrf24l01.brd
arduino_nrf24l01.sch

If someone have this converted to 1.4 version of library please post it.

Have node №2 child 1 - temp sensor.
For example: how to ask the node 2 child 1 value from node №10?