I apologize for my lack of knowledge here but I am trying to set up an SHT temperature and humidity sensor (purchased through your website) to my F16 board. I found YAML in a different thread and copied it and changed the pin numbers to match my board. I am using ESPhome through Homeassistant. The YAML pertaining to the temperature humidity sensor is as follows:

uart:
  - id: uart_modbus
    baud_rate: 9600
    tx_pin: 16
    rx_pin: 17
# Config Modbus
modbus:
  uart_id: uart_modbus
  id: modbus1
modbus_controller:
  - id: modbus_sensor
    address: 0x01  # device address
    modbus_id: modbus1
sensor:
  - platform: modbus_controller
    modbus_controller_id: modbus_sensor
    name: "RS485 Temperature Sensor"
    id: temperature_sensor
    address: 0x0000
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "°C"
    accuracy_decimals: 1
    filters:
      - lambda: if (x < 10000) return x * 0.1; else return -1 * (x - 10000) * 0.1;
   
  - platform: modbus_controller
    modbus_controller_id: modbus_sensor
    name: "RS485 Humidity Sensor"
    id: humidity_sensor
    address: 0x0001
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "%"
    accuracy_decimals: 1
    filters:
      - multiply: 0.1


The sensors read as unavailalbe in homeassistant. I have a feeling that the issue may be in the address of the specific sensors, but I have no idea since I have never used the RS485 pins before.

Hello,
Can you tell me the reference number of the battery to insert into the holder to keep time?
I couldn't find this information in the documentation.
Kind regards.

Hello,
I'm using the Kincony F-24 controller and trying to get the built-in 433MHz receiver working under ESPHome.
I get the following error:

1. Is the 433MHz receiver really connected to native GPIO40 of the ESP32?
   
2. Is this GPIO compatible with the RMT hardware required by remote_receiver in ESPHome?
   
3. Could the RF receiver be connected via an I²C expander (like PCF8574), or is it mapped internally in another way?
   
   

I would like to request a KC868-A4 Free Sample to start a new project (B) for a smart home product for grow automation of hydroponic lettuce. System will be connected to LLM
Thank you.

Hi, I have an old H32B,
H32B200526353

I once flashed it with too big a firmware, and it stopped working for me, you said that I need ch341a to flash it now.
Please tell me the order of actions
I have a problem with it, I need to revive it

bootloader tool not work
i have MiniPro TL866

dear:  l have a device ATT some photos. can you tell me what's firmware for it?

PLS

Attached Files

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I'm sharing a project I developed using ESP-IDF with the KC868-A32M and KC868-HAv2 boards, incorporating Modbus communication. 

While I won't be continuing active development on this particular project, I wanted to open-source my work to help others who might be embarking on a similar journey.

Developing with these boards and Modbus can present unique challenges, and my aim here is to provide a starting point and demonstrate how I approached the integration using ESP-IDF. 

My hope is that this project will serve as a valuable reference and save you some time and effort in your own development. Feel free to explore the code, adapt it to your needs, and build upon it 

You can find the project files here TrigPLC-ESP

Hello,

i would like to have two A16s communicate with uart via the RS485 in the ESPHome.
The two RS485 are cross-connected A=>B and B=>A.

One A16 is the transmitter and the other is the receiver.

When the binary sensor is triggered, a message should be sent to the receiver, which should then trigger an action.

So far the log says that the transmitter is transmitting, but according to the log nothing arrives at the receiver.

Transmitter, i have shortened the yaml to the essential parts:

Hello admin
I am using a B16 smart relay controller with your KCS v3 firmware. I am integrating it with Home Assistant to control a Somfy WT roller shutter.
For this application, I need to send an MQTT command to activate a relay for a specific duration (e.g., "turn on output1 for 3 seconds, then turn it off automatically").
I've reviewed the KCS v3 MQTT protocol document (specifically, section 1 about setting ON/OFF of a digital output channel). It shows how to turn relays ON or OFF: