@manutremo
Thanks for your input, this is very helpful information for me.
I will start with the RFM69 modules in stat of the Nrf24.

@gohan

Thanks for your input, A good reason to go for the RFM69 module. I will try to change the Arduino nano for the mini pro and use them with the RFM69.

@gohan
I meant a 3,3V output, not a 3,3V working voltage. (Sorry I didn't mentioned that)

@manutremo
Oke, why is the RFM69 your choice?
Do you also use them for sensors (temp/hum/lux/smoke detector) or to switch AC Mains/Modules.

I hope/thought that an Arduino NANO has also 3,3V. (this because I ordered 3 of these Arduino's to use for starting with MySensors)

@sundberg84 My 433Mhz Rx with external antenna (17cm wire) has a limited range, it only sees signals from my KAKU remote within 15 cm (max), my Tx is working good, I can send the signals from the living-room to the addict (about 8mtr higher trough 2 concrete floors) and the garden. So switching on my AC Mains works good, but receiving signals from the doorbell and the smoke detectors doesn't work at all.
Do you have any experience with receiving signals?? Do you use the RFLink or the RFM69 for this.
And how many work do you have with the Nrf24, I thought of using it to get Temp/Hum and light info from every room and switch the lights and on sunny days to open or close the shutters (trough the same Nrf24), is this a good or bad idea?? (also want to use it to send info back if the signal is received)

@gohan Oke thanks for your info, I forgot that the RFM69 is only 3,3V and you will need a converter. I'm planning to use all the modules with a power adapter so battery saving is no issue.

Hi All,

I'm a new-bee and just started my home automation with an RPI B and an el cheapo RF and TX module combined with some scripts I'm able to switch my lights on and off (using sun up/down with interval time and darkness/cloud sensor) I just bought some smoke detectors that are compatible with Domoticz but whatever I try I cant see them?? after some reading here and on other forums I guess that it is useful to build a Gateway / RFlink to send and receive data and connect temp/hum/sun/door/PIR sensors with the RPI.

My question now is what should I choose?? NRF24 or RFM69 or an RFlink, and Why??

Thanks for your input.