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+--- Forum: CO16 (https://www.kincony.com/forum/forumdisplay.php?fid=119)
+--- Thread: Questions on CO16 (/showthread.php?tid=9828)
Questions on CO16 - philj77 - 09-13-2026
Hi,
I have several questions on CO16 that I would like to use to replace my alarm system :-)
1/ Are there free GPIO that can be accessed (I need to add Wiegand input)
2/ Is there a socket to expand I2C bus ?
3/ Which GPIO are used for KNX ?
4/ With ESPHome can we send KNX messages from CO16
5/ Regarding the SIM7600E expansion, what is the wiring (I already have such a module and I would like to know if it will be compatible)
6/ Any idea on how to generate sound for a remote loundspeaker (the one that tells alarm in service / door left open / ....) ?
7/ Is there any electronic between GPIO38/39 and RS485 socket ?
Regards
Philippe
RE: Questions on CO16 - admin - 09-13-2026
1. no free gpio
2. no.
3.
4G SIM7600/KNX RXD: GPIO47
4G SIM7600/KNX TXD: GPIO48
4. ESPHome not support KNX.
5. as same as point 3.
6. use a siren control by 12v power.
7. you can check used ESP32 GPIO at here: https://www.kincony.com/forum/showthread.php?tid=9778
RE: Questions on CO16 - philj77 - 09-13-2026
(Yesterday, 01:03 PM)admin Wrote: 3.
4G SIM7600/KNX RXD: GPIO47
4G SIM7600/KNX TXD: GPIO48
Does it mean its either KNX or SIM7600 ?
RE: Questions on CO16 - admin - 09-13-2026
SIM7600 and KNX use same GPIO. two module will not plugin at the same time. you can use either module.