Sound card WM8960 and COS / PTT via GPIO RPI?

AllStarLink
1

Hi,

I have a ready-made board featuring the SA818 module and a WM8960 sound card (via I2S), along with SQL/COS and PTT control via GPIO; it plugs into the Raspberry Pi's 40-pin header and works perfectly with SvxLink. However, I want to use this hardware with AllStarLink 3. Is there a way to support it? I assume the sound card will work, as it is detected just like other cards (e.g., the CM108), but is there a method—perhaps using a Python 3 script—to pass RPi GPIO state changes (PTT and COS/SQL) to AllStarLink 3? My understanding is that AllStarLink doesn't natively monitor RPi GPIO pins for COS and PTT functions. Could a script like that send a "COS 1" or "COS 0" signal via an AMI connection to Asterisk so that AllStarLink knows the COS is active or PTT is engaged?

73 Waldek

2

At this time, only CM108/109/119 audio chips work.

3

Thank you for the information

73 Waldek

4

Hello @SP2ONG , I am curious. What is the the ready-made board you are using? I have just started building SVXLink nodes and would love to know. Thank you.

5

For SVLink, you can use SHARI (with sound cards based on CM1xx) SHARI PiXX – Kits 4 Hams or SHARI PiXX – Kits 4 Hams or HotspotRadios or RF.Guru boards HotSpot (these are based on WM8960 sound cards) and I also have a board based on: GitHub - SQ4RD/Hotspot-WM8960-Respeaker · GitHub
SVXlink supports sound cards via ALSA and control can be via GPIO RPI or GPIO on CM1xx as in SHARI and HotspotRadios
Of course, it also works with tiles Repeater Builder USB-RIM Lite

73 Waldek