Filter node

[mfalkvidd]

@Snyfir could you share more details on why you don’t want to go through that repeater?

[Snyfir]

I want to have a network (A) which will not stop working when the power of the house is down. Because I have door sensor for the alarm of the house.

And I want another network (B) which can be down when the power is off because it is not for security (temperature, humidity sensor…). This network needs to used the repeater of the network A also.

That’s why I want nodes of network (A) use only repeaters of network (A), and nodes of network (B) use repeaters of networks (A) and (B)

[evb]

@Snyfir another approach is to use another radio channel for your B network? That includes of course another gateway also...
An advantage is that you can stick with the standard MySensors library.
More information on : https://www.mysensors.org/download/sensor_api_20 : search channel

of course:
That’s why I want nodes of network (A) use only repeaters of network (A), and nodes of network (B) use repeaters of networks (A) and (B)
This will not be possible....

[TheoL]

In all honesty mixing rfm69 and nrf24L01+, as @evb, suggests seems to me to be a way that isn't complicated and doesn't acquire any additional coding. I think I'd go that route

[evb]

@TheoL sorry, I didn't have that in mind, but of course that is also a possibility. :-)

With the RF24, we can configure another channel

/**
 * @def MY_RF24_CHANNEL
 * @brief RF channel for the sensor net, 0-125.
 *
 * Frequencies: 2400 Mhz - 2525 Mhz
 *
 * Channels: 126
 * @see https://www.nordicsemi.com/eng/nordic/download_resource/8765/2/42877161/2726
 *
 * - 0 => 2400 Mhz (RF24 channel 1)
 * - 1 => 2401 Mhz (RF24 channel 2)
 * - 76 => 2476 Mhz (RF24 channel 77)
 * - 83 => 2483 Mhz (RF24 channel 84)
 * - 124 => 2524 Mhz (RF24 channel 125)
 * - 125 => 2525 Mhz (RF24 channel 126)
 *
 * In some countries there might be limitations, in Germany for example only the range
 * 2400,0 - 2483,5 Mhz is allowed.
 * @see http://www.bundesnetzagentur.de/SharedDocs/Downloads/DE/Sachgebiete/Telekommunikation/Unternehmen_Institutionen/Frequenzen/Allgemeinzuteilungen/2013_10_WLAN_2,4GHz_pdf.pdf
 */
#ifndef MY_RF24_CHANNEL
#define MY_RF24_CHANNEL (76)
#endif

/**

If we use RFM69 radio, we can define the network ID

#define 	MY_RFM69_NETWORKID   (100)
 	RFM69 Network ID. Use the same for all nodes that will talk to each other.

[Snyfir]

I understand what you said. For further project I wild I think used two channels.
But right now, I don’t want to change the hardware. If nobody can tell me if the solution i propose in post 2 works, I will try it.

[mfalkvidd]

@Snyfir thanks for explaining. How come you want the B sensors to be disabled when the power is off? Why can’t they be allowed to continue working?

[Snyfir]

@mfalkvidd said in Filter node:

@Snyfir thanks for explaining. How come you want the B sensors to be disabled when the power is off? Why can’t they be allowed to continue working?

I don't want the B sensors to be disable when the power is off. It's juste because sensors B is not on battery and if the power of the house is off, sensors B can't works

[mfalkvidd]

@Snyfir if they can't work anyway, why do you want to filter them?

[Snyfir]

@mfalkvidd said in Filter node:

@Snyfir if they can't work anyway, why do you want to filter them?

I don't want that repeaters without battery are used by security nodes (door status, PIR...). Because if the power of the house is down, security nodes while not works during a moment.
That's why i want repeaters without battery to reject security nodes

[alexelite]

@Snyfir In your first post you say that only one node is mains powered. Instead of modifying the library, why not provide a UPS type power supply for that node. Something with an old phone battery or 1-2 18650 cells.
But I guess the other two already have something like this, they are not battery only.
That way if the power goes down all your repeaters are up.

[TheoL]

In all honesty, I'm not quite convinced you'd need two separate networks. Just provide the security sensors, the repeaters, the gateway and your controller - that form the security system - with some sort of ups and they will keep running until the UPS has no more power left.
The none security devices will stop working when the power goes out and, unless I don't really understand your problem well. That does what I think you want to achieve? Unless you have combined a lot of sensors within a repeater it would really be my way to go. It wouldn't mean any modifications to your security hardware, because they need to be battery powered or have some sort of UPS anyway, to keep working when the power goes down.
But again it's hard to judge when you don't really understand the problem some one is trying to solve.