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ISM Frequency Band 2.4GHz

MartijnHarteMartijnHarte Member
in Archive
Hi,

I don't know alot about all the different wireless protocols so I'll ask here, see if someone can help me :smile: .

I would like to create an app for my vacuum cleaner (Grixx).

In the manual it says it operates at "ISM Frequency Band 2.4GHz". Though, I have no idea what this means. What protocol is this and more importantly, is it supported by Homey?

Thanks!

Comments

  • AndyWildeAndyWilde Member

    Info on ISM
    https://en.wikipedia.org/wiki/ISM_band

    However this does not really help useless you know how this communicates to the outside world,  Can this be controlled over the internet for example,  Does it connect to you wifi or blue tooth.
  • MartijnHarteMartijnHarte Member
    Thanks for your answer @AndyWilde !

    So what you're saying is that "ISM Frequency Band 2.4GHz" doesn't say anything about the protocol being used?
  • MarcoFMarcoF Member
    Its a Frequency band, for example see this:
    https://nl.wikipedia.org/wiki/ZigBee#ZigBee_versus_Bluetooth_versus_wifi
    ZigBeeBluetoothwifi
    Frequentieband2.4 GHz, 868 / 915 MHz2.4 GHz2.4 GHz, 5 GHz
    WiFi/BT and Zigbee can(!) run on the same frequency band (in most countries there's regulation to prevent it)
    But because the can use the same frequency band, it doesn't mean the can talk to/with each other. Within the frequency most devices use different protocols 

    Also 868 is a heavily used frequency band for car/garage/domotica remotes. But its "impossible" to use a garage remote to turn on the lights in your house.

    Frequency band is such as sound that we can or can not hear, protocol is the language of the sound/speech.

    So talking on a specific frequency doesn't mean you can understand the other.
  • bvdbosbvdbos Member
    I hope we can adapt the zigbee-868-radio to understand plugwise natively and perhaps adapt the bluetooth-2.4-radio to understand different IR-protocols?
  • MartijnHarteMartijnHarte Member
    Thanks @MarcoF for the clear explanation.

    I have contacted Aldi (the shop I bought the vacuum cleaner at) to ask if they can let me know what protocol is being used.

    Is there by any chance any other way I can figure out by myself what protocol is being used?
  • AntonMadnessAntonMadness Member
    I'm not an expert on this but as far as I know, you can figure it out.  If you take a look at the OSI-model, you know level 7, which is the carrier. And you want the engineer your way up to the application layer. BUT this will take a long time of backward engineering if you don't get your hands on high level protocol information. So getting to the manufacturer and hoping they like sharing info for the sake of hackability is your best guess in my opinion. (do correct me if I'm wrong)
This discussion has been closed.