SOLVED: Problems registering MySensors node

ArneiO wrote: I am attempting to bring to life my first node using an NRF24L01+, after having successfully implemented several ESP8266 nodes.
I am running V0.8 EasyIoT server on an Rpi2, and have connected an NRF24L01+ to the signals indicated in the diagram in the Server Installation Guide . Using the same signals but different pins since I am on an RPi2.
My node is an arduino miniproclone with an NRF20L01+ and a DHT-11. I have uploaded to the arduino the HumiditySensor sketch that is an example in the Arduino IDE after having installed the MySensor library.
I have not managed to register the driver. I push the button, power the node, waits... and timeout. I have verified that the Channe number, the Base Radio Id and data rate is the same as in the MyConfig.h file.
The server window shows the following:

2015-05-10T18:33:21.1166080+02:00	DEBUG	MySensors				MySensors Connect
================ SPI Configuration ================
CSN Pin  	 = CE0 (PI Hardware Driven)
CE Pin  	 = Custom GPIO25
Clock Speed	 = 8 Mhz
================ NRF Configuration ================
STATUS		 = 0x0e RX_DR=0 TX_DS=0 MAX_RT=0 RX_P_NO=7 TX_FULL=0
RX_ADDR_P0-1	 = 0xa8a8e1fc00 0xa8a8e1fc00
RX_ADDR_P2-5	 = 0xff 0xc4 0xc5 0xc6
TX_ADDR		 = 0xe7e7e7e7e7
RX_PW_P0-6	 = 0x20 0x20 0x20 0x00 0x00 0x00
EN_AA		 = 0x3b
EN_RXADDR	 = 0x06
RF_CH		 = 0x5f
RF_SETUP	 = 0x27
CONFIG		 = 0x0e
DYNPD/FEATURE	 = 0x3f 0x06
Data Rate	 = 250KBPS
Model		 = nRF24L01+
CRC Length	 = 16 bits
PA Power	 = PA_MAX
2015-05-10T18:33:21.2192880+02:00	DEBUG	MySensors				Mysensors Start driver.
2015-05-10T18:36:37.3924440+02:00	INFO	EasyIoTWebinterface	EasyIoTConfig	Driver	MySensors	/Api/EasyIoT/Config/Driver/MySensors/AddNode//

The serial monitor connected to the node shows absolutely nothing.
By inserting debug printouts in in the sketch I can say that it stops at gw.begin() in setup().

Can anyone enlighten me as to what I might be doing wrong? Is there any way of checking that the NRF20L01 sitting on my Rpi2 is detected and operational?

PS: The arduino sketch contains several Serial.println("whatever") without any Serial.begin() in the setup(). I am not able to get any response from my Aardunio without inserting a Serial.begin(). I am puzzled as to this seeming error, and wonder if there are other issues in the sketch.

This is the Arduino sketch.