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+-- Forum: Technical Support (https://www.kincony.com/forum/forumdisplay.php?fid=20)
+--- Forum: KC868-A16 (https://www.kincony.com/forum/forumdisplay.php?fid=25)
+--- Thread: How to use tasmota for KC868-A16 via PCF8574 IIC extend GPIO (/showthread.php?tid=1715)
RE: How to use tasmota for KC868-A16 via PCF8574 IIC extend GPIO - admin - 09-20-2025
use tasmota online compile tool to compile firmware based on newest firmware.
https://github.com/benzino77/tasmocompiler
this is a easy web GUI tool.
RE: How to use tasmota for KC868-A16 via PCF8574 IIC extend GPIO - Mike - 10-31-2025
Hello,
I am new to Kincony boards and am having a problem. I am probably making a small mistake somewhere.
I have several Kincony A16 Rev. 1.6.
I am flashing with the “ESP-Flasher-Windows-x64” program and using the firmware from the first page (https://www.kincony.com/forum/attachment.php?aid=642).
After flashing, I adjust the “PCF8574” parameters as shown in the images on the first page. I have also tried inverting and not inverting.
However, when I switch the outputs via the WebUI, the relays on the board do not switch. There is no sound, and I have also measured it.
The inputs work.
I have also reflashed several times.
I have also attached a picture of my setup.
Can someone please help me?
BR
RE: How to use tasmota for KC868-A16 via PCF8574 IIC extend GPIO - admin - 10-31-2025
you have not connect with DC terminal, see the photo, you need to add the RED cable from power supply.
RE: How to use tasmota for KC868-A16 via PCF8574 IIC extend GPIO - basilioo - 11-17-2025
(02-25-2022, 06:37 AM)fgadmin Wrote: I flashed the board with this firmware. Everything is working properly. But in this firmware there is no possibility to connect DS18x20 sensors. Is there any way to add them? Maybe using templates?
RE: How to use tasmota for KC868-A16 via PCF8574 IIC extend GPIO - admin - 11-17-2025
why can't use DS18B20? if you downloaded KCS v2 firmware, just add DS18B20 in "sensor" webpage.
RE: How to use tasmota for KC868-A16 via PCF8574 IIC extend GPIO - basilioo - 11-18-2025
(11-17-2025, 11:41 PM)admin Wrote: why can't use DS18B20? if you downloaded KCS v2 firmware, just add DS18B20 in "sensor" webpage.
Sorry, I expressed myself inaccurately. It means Tasmota firmware. It does not have DS18B20 in the sensors section.
Tasmocompiler usage was unsuccessful.
Only your program from 2022 is suitable. But it have not DS18B20 support.
RE: How to use tasmota for KC868-A16 via PCF8574 IIC extend GPIO - admin - 11-18-2025
you can compile tamota firmware to enable ds18b20.
RE: How to use tasmota for KC868-A16 via PCF8574 IIC extend GPIO - basilioo - 11-19-2025
(11-18-2025, 10:16 PM)admin Wrote: you can compile tamota firmware to enable ds18b20.
compiled firmware does`t work