Author Topic: WiFi Module for Raspberry Pi's Compute Module  (Read 1216 times)

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Online ricko_ukTopic starter

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WiFi Module for Raspberry Pi's Compute Module
« on: May 01, 2020, 04:28:45 pm »
Hi,
I am looking for a WiFi module (not dongle) to integrate in a PCB that uses a Raspberry Pi Compute Module.

Requirements:
- very important is for it to have the drivers available for the Compute Module (i.e. Raspberry Pi equivalent) running Raspbian.
- ideally a USB connection (I already have integrated a USB hub). If not the highest possible speed interface (ideally at least 4-5 Mbps level).
- connector for external antenna. The PCB enclosure is metal so needs to be placed outside the PCB enclosure.
- preferably (not necessarily) SMD

Any parts suggestions?

Many thanks :)
« Last Edit: May 03, 2020, 03:33:58 pm by ricko_uk »
 

Online ricko_ukTopic starter

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Re: WiFi Module for Compute Module
« Reply #1 on: May 01, 2020, 09:12:15 pm »
Thank you blueskull,

Any other suggestions? I could not find a driver for it for the Compute module (i.e. for the Raspberry Pi).
 

Offline JJalling

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Re: WiFi Module for Compute Module
« Reply #2 on: May 02, 2020, 07:30:42 am »
The RTL8188 is supported by the linux kernel (in case you plan to run linux on your compute module) so no need to find a special driver.

BR Jonas
 
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Online ricko_ukTopic starter

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Re: WiFi Module for Compute Module
« Reply #3 on: May 03, 2020, 03:19:37 pm »
Thank you all :)

have to use Raspbian, so any suggestions for any WiFi modules that do have a driver ready for Raspbian? Or is there a driver ready for Raspbian for the RTL8188 ?

What about the ESP8266 series (from Express If Systems)? Like the ESP-WROOM-02U?

Also ideall I need a module that has a connector instead of a built-in antenna because the enclosure is metal and the antenna needs to be external.

Many thanks in advance for all additional info/feedback :)
« Last Edit: May 03, 2020, 03:22:25 pm by ricko_uk »
 

Online NiHaoMike

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Re: WiFi Module for Raspberry Pi's Compute Module
« Reply #4 on: May 03, 2020, 10:48:42 pm »
What about the ESP8266 series (from Express If Systems)? Like the ESP-WROOM-02U?
Has been done with the Pi Zero before the version with built in wireless became available.
https://hackaday.io/project/8678-rpi-wifi
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Offline JJalling

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Re: WiFi Module for Raspberry Pi's Compute Module
« Reply #5 on: May 04, 2020, 09:25:10 am »
Here is a dump from the relevant part of the linux-kernel config file from the current image of Raspbian (2020-02-13-raspbian-buster-lite).

Code: [Select]
$ extract-ikconfig configs.ko | grep RTL8XXX
CONFIG_RTL8XXXU=m

The =m means that the driver is compiled as a module.
So you can safely go with a RTL8188 module as well.

BR Jonas
 
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Online ricko_ukTopic starter

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Re: WiFi Module for Raspberry Pi's Compute Module
« Reply #6 on: May 04, 2020, 05:00:44 pm »
Thank you very much BR Jonas! :)

I have been googling quite a bit and searching all the various distributors but the only modules I came across were those with integrated antenna (i.e. no connector for external antenna) and through hole.

Does it exist with external antenna (just the antenna's connector on the module) and in SMD?
If so does it have perhaps a different part number?

Many thanks :)
 

Online ricko_ukTopic starter

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Re: WiFi Module for Raspberry Pi's Compute Module
« Reply #7 on: May 05, 2020, 08:28:12 pm »
Any feedback anybody?
Thank you :)
 

Offline kaevee

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Re: WiFi Module for Raspberry Pi's Compute Module
« Reply #8 on: May 06, 2020, 03:07:13 am »
Any feedback anybody?
Thank you :)

Checkout out Ti WiLink at http://www.ti.com/wireless-connectivity/simplelink-solutions/wi-fi/overview/wilink-combo-solutions.html

They offer drivers for Linux and Android.

Venkatesh
 
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