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  • Re: WiFi module

    From Dimiter_Popoff@dp@tgi-sci.com to comp.arch.embedded on Tue Feb 22 15:48:33 2022
    From Newsgroup: comp.arch.embedded

    On 2/22/2022 14:23, Bernd Linsel wrote:
    On 22.02.2022 12:59, pozz wrote:
    I need to develop a custom board with WiFi connectivity and a
    UART(RS485). The UART will be connected to a proprietary device with a
    proprietary protocol, no problem on this.

    The board should connect to a MQTT server through WiFi.

    I don't know if I will choose a "transparent" WiFi module,
    implementing all TCP/IP stack and MQTT protocol on the host
    controller, or choose a "full-featured" WiFi module that integrates
    all the protocols I need and TCP/IP stack.

    Besides this, the most important issue is how to configure the WiFi
    module with network settings (network name, password and so on). This
    step is crucial, because it should be as simplest as possible.


    Hello pozz,

    you can find some budgetable modules here: https://www.wiznet.io/product/wifi-module/

    Nearly every WiFi module supports parallel operation as a station and as access point. Also, if they offer a lightweight TCP stack (mostly
    limited to 1..4 parallel connections), you can choose to use them on a
    lower level, e.g. PHY, IP... and implement the upper protocol layers yourself.

    Is there a documented way to use some of these (I am looking at the PCIe
    one) *without* having to use its tcp stack, so one could send/receive
    IP packets, similar to the way it is done via Ethernet or ppp?

    Dimiter

    ======================================================
    Dimiter Popoff, TGI http://www.tgi-sci.com ====================================================== http://www.flickr.com/photos/didi_tgi/



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