why mysensors is based on nrf24?
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@Anticimex a alternatives for RF radio
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@Anticimex
mysensors and domoticz are a excellent combine. i am very very happy about this .
we are build every sensors and relay(thanks from mysensors team) ... also some sensor that there is not in brands for example zwave(fibaro , zipato...) and etc... for example sound sensors or gas sensor or soil moisture...
now i build a 7 multi sensors ( motion , temp , hum , vibration , gas , sound , lux) :) in one device. or relay for doorbell and etc... this is very intresting.
with domoticz and events and notification , also use other device for example milight and etc. this is more intresting.
but just problem is "connection" other device for example milight lamp or smart TVs are very good connection with wifi with domoticz. but my sensors ....
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You're not totally right :
RFM69 can be used with a raspberry pi, you must use a usb (serial) gateway.
That's what I'm doing, and I've got very good results : My house is made of outside concrete walls; with my gateway in the middle of my house, I can walk outside 60-70 meters before starting to loose some packets.
And that's only with a dirty cheap 8cm wire antenna. I'm sure that a better antenna (see GPA-Ground Plane Antenna on internet) will allow some meters better...Some people are talking about +1Km ranges with propers antenna.
I didn't go the NRF24 way because I wanted to use sensors outside the house, and without repeaters that wasn't possible.
PS : I use 868Mhz RFM modules : using 433 could also rise the range. -
@Reza - I have currently atleast 30+ nodes based on MySensors and Nrf24l01+ and it works fine!
Its DIY and sometimes I have to debug and change something - but it works so good I have my house alarm motion sensors using Nrf24l01+ radios. I have nodes which I have not touched for 1 year + and still works great. Compared to any commercial system (which I have to pay 10times as much) im so happy about this!
Sometimes you get bad radios, and you have to debug and try different capacitors - but thats the fun about it! If someoen wants a quick, plug and play sollution - I would not suggest MySensors because thats not what MySensors are about,
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So far no one has mentioned:
- MySensors can bridge larger distances by using repeaters.
- There are high-powered long-range NRF24 radios available. I'm using just one in low-power mode on the gateway, and it's already covering my entire house.
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hi all friends . thank you for answer .
i mean about this , i think the combine mysensors network and domoticz controller is the best home automation . even better than fibaro , vera and etc...
In addition to the "cheap cost" reason , we are build every thing which we like. build sensors and devices that is not in brands for example my multi sensors. i can increase or decrease my multi sensor with every sensors in one node and one device.... for example i want have a gas and motion in one room and have gas and motion and temp/hum in other room...
these is excellent feature that there is not in home automation brands...so i mean that is with this excellent features , with many trying from mysensors team(for design mysensors core) and members, why there is some weak in connection between !? i dont told nrf is bad ( i use this in my network several model but just a expensive model is work well for me and this is worthy for mysensors library :) other model work a few distance ) but with this excellent library and this excellent idea, nrf is not excellent choise .
why base of mysensors is not Mhz frequency (315 , 433) ? for report sensors or send command to relay and ack... are we need to Ghz frequency ?
i dont use RFM69 until now , but if RFM is better than nrf why mysensors is based on nrf? with RFM we are broader scope? with wall and more distance? RFM have repeater feature?and other feature? -
we can build a network but this is not very easy and choose desired place for our nodes . or we must choose special place for better connection and signaling, or we must use repeater in special place ( perhaps there was not good place or wire power and etc... for repeater) also we must use a arduino and a radio for repeater just for weak in connection. so is this better that we have a connection with for example 20 meter in home with wall and if we want use more than 20 meter we must use repeater...?
now if i want have just 5 sensor in each corner in my home , for example i need 5 repeater or more :) :)
now domoticz have a excellent connection with each wifi device. for example milight and etc... so this is worthy that connection in mysensors network will be excellent even if cost will be more ( A little) :)
we can build a network but this is not very easy and choose desired place for our nodes . or we must choose special place for better connection and signaling, or we must use repeater in special place ( perhaps there was not good place or wire power and etc... for repeater) also we must use a arduino and a radio for repeater just for weak in connection. so is this better that we have a connection with for example 20 meter in home with wall and if we want use more than 20 meter we must use repeater...?
now if i want have just 5 sensor in each corner in my home , for example i need 5 repeater or more :) :)
now domoticz have a excellent connection with each wifi device. for example milight and etc... so this is worthy that connection in mysensors network will be excellent even if cost will be more ( A little) :) -
I'm using RFM69 yes, and it has no problems.
I don't need repeaters at the moment, as far as I know it's software based? -
thank you friends for answer.
about channel? MY_RF24_CHANNEL
can we use several channel with RFM ?
generally RFM work better than NRF ? -
thank you friends for answer.
about channel? MY_RF24_CHANNEL
can we use several channel with RFM ?
generally RFM work better than NRF ?
