Hello,
I am planning to use about 15 KC868-HA-V21 modules behind 6-gang momentary switches throughout my whole house and connect them to the KC868-AP dimmer board. The LED strips I am using are 24V.
Can I also use this 24V supply to power the KC868-HA-V21 modules? The documentation states that it is supported, but I want to make sure it is a safe and reliable choice. Or, would it be better to use a separate 12V power supply for the modules?
Thank you for your advice!

Hello,
is possible to use DM4 with ESPHome and Tuya ? B8M works fine, but DM4 has some trouble in tuya_wifi_mcu_light_output.cpp

Here is the log:
Reading CMake configuration...
Dependency Graph
|-- noise-c @ 0.1.11
|-- Tuya_WiFi_MCU_SDK @ 0.0.3+sha.66c750a
Compiling .pioenvs/kin-dm4/src/esphome/components/tuya_wifi_mcu/light/tuya_wifi_mcu_light_output.cpp.o
Compiling .pioenvs/kin-dm4/src/esphome/components/uart/uart_component_esp_idf.cpp.o
Compiling .pioenvs/kin-dm4/src/esphome/components/uart/uart_debugger.cpp.o
Compiling .pioenvs/kin-dm4/src/esphome/components/watchdog/watchdog.cpp.o
Compiling .pioenvs/kin-dm4/src/esphome/components/web_server/list_entities.cpp.o
src/esphome/components/tuya_wifi_mcu/light/tuya_wifi_mcu_light_output.cpp: In member function 'virtual void esphome::tuya_wifi_mcu::TuyaWifiMcuLightOutput:etup()':
src/esphome/components/tuya_wifi_mcu/light/tuya_wifi_mcu_light_output.cpp:10:28: error: 'class esphome::light::LightState' has no member named 'add_new_remote_values_callback'
  10 |        this->bind_light_->add_new_remote_values_callback([this]() {
      |                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/esphome/components/tuya_wifi_mcu/light/tuya_wifi_mcu_light_output.cpp: In lambda function:
src/esphome/components/tuya_wifi_mcu/light/tuya_wifi_mcu_light_output.cpp:15:47: warning: 'float esphome::gamma_uncorrect(float, float)' is deprecated: Use LightState::gamma_uncorrect_lut() instead. Removed in 2026.9.0. [-Wdeprecated-declarations]
  15 |          this->tuya_bright_ = gamma_uncorrect(bright, this->bind_light_->get_gamma_correct()) * 100;
      |                                ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from src/esphome/components/i2c/i2c.h:5,
                from src/esphome/components/ads1115/ads1115.h:3,
                from src/esphome.h:3,
                from src/esphome/components/tuya_wifi_mcu/light/tuya_wifi_mcu_light_output.h:3,
                from src/esphome/components/tuya_wifi_mcu/light/tuya_wifi_mcu_light_output.cpp:1:
src/esphome/core/helpers.h:1597:7: note: declared here
1597 | float gamma_uncorrect(float value, float gamma);
      |      ^~~~~~~~~~~~~~~
src/esphome/components/tuya_wifi_mcu/light/tuya_wifi_mcu_light_output.cpp: In member function 'virtual void esphome::tuya_wifi_mcu::TuyaWifiMcuLightOutput::process_dp_data(const unsigned char*, short unsigned int)':
src/esphome/components/tuya_wifi_mcu/light/tuya_wifi_mcu_light_output.cpp:33:47: warning: 'float esphome::gamma_correct(float, float)' is deprecated: Use LightState::gamma_correct_lut() instead. Removed in 2026.9.0. [-Wdeprecated-declarations]
  33 |        this->output_->set_level(gamma_correct(bright, this->bind_light_->get_gamma_correct()));
      |                                  ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/esphome/core/helpers.h:1593:7: note: declared here
1593 | float gamma_correct(float value, float gamma);
      |      ^~~~~~~~~~~~~
src/esphome/components/tuya_wifi_mcu/light/tuya_wifi_mcu_light_output.cpp:35:47: warning: 'float esphome::gamma_correct(float, float)' is deprecated: Use LightState::gamma_correct_lut() instead. Removed in 2026.9.0. [-Wdeprecated-declarations]
  35 |        this->output_->set_level(gamma_correct(bright, 2.8));
      |                                  ~~~~~~~~~~~~~^~~~~~~~~~~~~
src/esphome/core/helpers.h:1593:7: note: declared here
1593 | float gamma_correct(float value, float gamma);
      |      ^~~~~~~~~~~~~
Compiling .pioenvs/kin-dm4/src/esphome/components/web_server/web_server.cpp.o
Compiling .pioenvs/kin-dm4/src/esphome/components/web_server_base/web_server_base.cpp.o
*** [.pioenvs/kin-dm4/src/esphome/components/tuya_wifi_mcu/light/tuya_wifi_mcu_light_output.cpp.o] Error 1
========================= [FAILED] Took 93.00 seconds =========================

Kind Regards
Pavel Hajn

Hello,

I am planning a project based on the KC868-A16 v3.1 (REV:1.6) board. My peripheral types include 5V digital sensors (TTL/CMOS) and low-power 5V loads.

Could you please help me with the following technical questions:

1. LO0 and LO1 with 5V: The official documentation specifies 12V/24V for the LO0 and LO1 power supply. Is it safe and functionally possible to apply a 5V external voltage to these specific channels instead?
   
2. Onboard 5V VCC Usage for LO0 and LO1: Can I use the internal 5V VCC rail from the board to power the LO0 and LO1 loads? The total load current will be under 1A, which is within the XL1509-5 regulator capacity. Are there any internal limitations preventing this?
   
3. 16 Digital Inputs with 5V logic: How can I modify all 16 Digital Inputs (INPUT1 and INPUT2) to safely and accurately read active 5V digital signals (TTL/CMOS)? What is the exact hardware modification procedure for the PCB?
   

Here is sample, KinCony F24 connect with one TS RS485 sensor, you can connect with multi TS sensors.
   

for example:

set F24 RS485 protocol = "Modbus-RTU", baud rate= 9600bps. the RS485 address should be different with TS' RS485 address.
   

TS sensor default address is 1, so set in "SENSOR" webpage:
   
   

Then it will work in monitor webpage:
   

Hello!

Recently, I bought a KC868-A16v3.
Could you please confirm whether this schematic is valid for my KC868-A16v3?

https://www.kincony.com/download/KC868-A...ematic.pdf

Thank you in advance for your prompt reply.

Hello, 

Glad to join the forum, there are a lot of interesting things here.

I just received my Kincony A16v3 board equipped with the display. I planned to run it directly under ESPHome. 
I flashed my YAML file, but upon reboot, it wouldn't get an IP address. I finally found the issue: it worked when I placed it right next to the Wi-Fi router. 

At best, I get a signal at 2.4 meters away. It's as if the built-in antenna isn't working. Is this normal? 

What kind of performance/behavior are you experiencing?

Thanks for your answers!

KC868-A16v3 PCB layout CAD file

  KC868-A16-V3.1_DWG.zip (Size: 3.27 MB / Downloads: 190)

I have two of your controllers that need to be restored. Please send me the bootloaders and the latest stable firmware versions.

1. H32B rev 7.2 controller
MCU: AT32F403AVGT7
Need: Bootloader + latest firmware

2. H32 rev 7.1 controller
MCU: STM32F103VCTB
Need: Bootloader + original firmware for KC868-H32

here is automations.yaml file show analog data on SSD1306 OLED every 5 seconds.