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Lesson29- How to use tasmota for KC868-A8 via PCF8574 IIC extend GPIO - Printable Version

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+--- Thread: Lesson29- How to use tasmota for KC868-A8 via PCF8574 IIC extend GPIO (/showthread.php?tid=1128)

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RE: Lesson29- How to use tasmota for KC868-A8 via PCF8574 IIC extend GPIO - admin - 04-04-2022

ok, when have development news, i will tell you.


RE: Lesson29- How to use tasmota for KC868-A8 via PCF8574 IIC extend GPIO - JulienR - 04-08-2022

(04-04-2022, 12:20 PM)admin Wrote: ok, when have development news, i will tell you.

any news ?


RE: Lesson29- How to use tasmota for KC868-A8 via PCF8574 IIC extend GPIO - admin - 04-08-2022

developing, it need time.


RE: Lesson29- How to use tasmota for KC868-A8 via PCF8574 IIC extend GPIO - admin - 04-19-2022

https://www.kincony.com/forum/showthread.php?tid=1843 here is sample code for WiFi mqtt. You can modify or update it.


RE: Lesson29- How to use tasmota for KC868-A8 via PCF8574 IIC extend GPIO - admin - 04-20-2022




RE: Lesson29- How to use tasmota for KC868-A8 via PCF8574 IIC extend GPIO - Alexporteus45 - 04-21-2022

Thanks for this tutorial.
I followed each and every step and It really worked.


RE: Lesson29- How to use tasmota for KC868-A8 via PCF8574 IIC extend GPIO - Rodrigorjn - 10-22-2022

(11-15-2021, 01:24 AM)admin Wrote: Thanks for "blakadder" from https://blakadder.com supply the tasmota firmware BIN file for KC868-A8
details you can see : https://blakadder.com/kincony-KC868-A8



1. download tasmota firmware for KC868-A8


2. After you get it running on your Wi-Fi network, set the template in " Configuration - Other"
copy this code:

{"NAME":"KC868-A8","GPIO":[32,0,1120,0,640,608,0,0,0,1,1,1152,0,0,5600,0,0,0,0,5568,0,0,0,0,0,0,0,0,1,1,0,0,1,0,0,1],"FLAG":0,"BASE":1,"CMND":"EthClockMode 3 | EthAddress 0 | EthType 0 | I2CDriver2 1"}

3. After applying the template you need one more configuration step. Navigate to " Configuration - Configure PCF8574 " and set the PCF8574 connected to relays to Output.

[Image: setup.jpg]

[Image: webui.jpg]


hello friend, I have a doubt, with the tasmota installed, how can I activate the relays through the pulse input? I can only activate it through the app.

(11-15-2021, 01:24 AM)admin Wrote: Thanks for "blakadder" from https://blakadder.com supply the tasmota firmware BIN file for KC868-A8
details you can see : https://blakadder.com/kincony-KC868-A8



1. download tasmota firmware for KC868-A8


2. After you get it running on your Wi-Fi network, set the template in " Configuration - Other"
copy this code:

{"NAME":"KC868-A8","GPIO":[32,0,1120,0,640,608,0,0,0,1,1,1152,0,0,5600,0,0,0,0,5568,0,0,0,0,0,0,0,0,1,1,0,0,1,0,0,1],"FLAG":0,"BASE":1,"CMND":"EthClockMode 3 | EthAddress 0 | EthType 0 | I2CDriver2 1"}

3. After applying the template you need one more configuration step. Navigate to " Configuration - Configure PCF8574 " and set the PCF8574 connected to relays to Output.

[Image: setup.jpg]

[Image: webui.jpg]

Olá pessoal , estou com uma dúvida , fiz todo processo mas não conseguir acionar os relés pela entrada de pulso , apenas pela web


RE: Lesson29- How to use tasmota for KC868-A8 via PCF8574 IIC extend GPIO - admin - 10-22-2022

this rules sample will set KC868-A16 input1 toggle output1 : https://www.kincony.com/forum/showthread.php?tid=1792
you can use this way for KC868-A8, just create a rule.


RE: Lesson29- How to use tasmota for KC868-A8 via PCF8574 IIC extend GPIO - antonio - 04-25-2023

sto provando a far funzionare il firmware tasmota solo lan disattivando wifi,in un primo momento perdo la connessione poi dopo ore di non funzionare inizia a funzionare regolarmente


RE: Lesson29- How to use tasmota for KC868-A8 via PCF8574 IIC extend GPIO - admin - 04-25-2023

maybe tasmota have some issue.