KC868-A16 Tuya

[damian87ew]

Hi everyone,
I’m using the KC868-A16 with Tuya enabled, and I was wondering if there’s a way to see sensor data (e.g., DHT22) directly in the Tuya app. Specifically, I’d like to set up automation where, for example, if the DHT22 sensor detects 15°C, it can trigger another device that’s also connected to Tuya.
Has anyone managed to get this working? Is there a way to make the sensor values visible in Tuya and use them in automations?
Thanks in advance for any tips!

[admin]

yes, tuya app can use for monitor sensor data and make SCENE mode in tuya app.
1: set sensor pin for DHT22 in KCS v2 webpage.
2: fill tuya license information.
3: use tuya app add your board. Then you can monitor sensor data and make AUTOMATION in tuya app. Just this automation solution need internet.
if you set IFTTT in webpage, that's work locally without internet. such as T<15 THEN relay1 ON/OFF.

[DavidSzilasi]

Hello,

Im currently trying to intergrate tuya to my KC868-A16, Im following the tutorial video "let ANY ESP32 relay board use Tuya app by ESPHome without ANY coding" and I'm getting an error message when I try to install the yaml file.

INFO ESPHome 2025.4.1
INFO Reading configuration /config/esphome/kc868-a16.yaml...
INFO Detected timezone 'America/Toronto'
WARNING GPIO5 is a strapping PIN and should only be used for I/O with care.
Attaching external pullup/down resistors to strapping pins can cause unexpected failures.
See https://esphome.io/guides/faq.html#why-a...pping-pins
INFO Generating C++ source...
INFO Compiling app...
Processing kc868-a16 (board: esp32dev; framework: arduino; platform: platformio/espressif32@5.4.0)
--------------------------------------------------------------------------------
HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
- toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch5
Dependency Graph
|-- AsyncTCP-esphome @ 2.1.4
|-- WiFi @ 2.0.0
|-- FS @ 2.0.0
|-- Update @ 2.0.0
|-- ESPAsyncWebServer-esphome @ 3.3.0
|-- DNSServer @ 2.0.0
|-- ESPmDNS @ 2.0.0
|-- noise-c @ 0.1.6
|-- Wire @ 2.0.0
|-- ArduinoJson @ 6.18.5
|-- cryptosuite2 @ 0.2.7
Compiling .pioenvs/kc868-a16/src/esphome/components/tuya_iot/tuya_iot_component.cpp.o
Compiling .pioenvs/kc868-a16/src/main.cpp.o
Archiving .pioenvs/kc868-a16/lib01c/libFS.a
Archiving .pioenvs/kc868-a16/libbc6/libUpdate.a
Compiling .pioenvs/kc868-a16/libdb6/ESPAsyncWebServer-esphome/AsyncWebSocket.cpp.o
Compiling .pioenvs/kc868-a16/libdb6/ESPAsyncWebServer-esphome/WebAuthentication.cpp.o
src/esphome/components/tuya_iot/tuya_iot_component.cpp: In lambda function:
src/esphome/components/tuya_iot/tuya_iot_component.cpp:167:96: error: invalid initialization of reference of type 'const json_parse_t&' {aka 'const std::function<bool(ArduinoJson6185_D1::ObjectRef)>&'} from expression of type 'esphome::tuya_iot::TuyaIotComponent:ubscribe_json(const string&, const mqtt_json_callback_t&, uint8_t)::<lambda(const string&, const string&)>::<lambda(ArduinoJson::JsonObject)>'
json::parse_json(payload, [topic, callback](JsonObject root) { callback(topic, root); });
^
In file included from src/esphome/core/string_ref.h:10,
from src/esphome/core/entity_base.h:5,
from src/esphome/components/binary_sensor/binary_sensor.h:4,
from src/esphome/core/controller.h:5,
from src/esphome/components/api/api_server.h:11,
from src/esphome/components/api/api_connection.h:8,
from src/esphome.h:3,
from src/esphome/components/tuya_iot/tuya_iot_component.h:3,
from src/esphome/components/tuya_iot/tuya_iot_component.cpp:1:
src/esphome/components/json/json_util.h:26:6: note: in passing argument 2 of 'bool esphome::json::parse_json(const string&, const json_parse_t&)'
bool parse_json(const std:tring &data, const json_parse_t &f);
^~~~~~~~~~
*** [.pioenvs/kc868-a16/src/esphome/components/tuya_iot/tuya_iot_component.cpp.o] Error 1
========================== [FAILED] Took 8.88 seconds ==========================

[admin]

the easy way is download KCS v2 firmware, then fill your tuya license information.
here is online guide: https://www.kincony.com/esp32-kcsv2-firmware.html