It seems that my outputs are not working (no leds, no voltage change).

I measured the voltage on the optocuplers and its ~1.1 V beetween optoupler legs (as on image):

   

I tride official firmware and esphome, both are responding to commands (on = 1.1V, off = 0.0V)

Can I connect an RS232 or TTL display directly to the KC868-A16, or do I need to use an adapter to connect it to RS485?

Hello,

I would like to get one KC868-A4 sample for educational purposes.

Here is "KCS" firmware for KinCony M30 AC energy meter board.

  KCS_M30_V2.4.7.zip (Size: 733.5 KB / Downloads: 483)
make sure your M30 ARM CPU firmware >= M30_KU_V10_240904SP

here is link for ARM CPU firmware: 

  M30_KU_V10_240904SP.zip (Size: 9.7 KB / Downloads: 513)
KinCony ARM CPU download tool:

  KC868 Controller Bootloader.zip (Size: 8.56 KB / Downloads: 452)
use USB-RS485 adapter to update ARM CPU, make sure baud set to 38400bps.
   

v2.4.7 improment:
1. support display power with negative. support use for "generator", power feedback to power grid.
   

Hi,

I want to install DS18B20 sensor and use it instead of analog temperature sensor which is not accurate.
Will be using one of the gpio on the white serial port. 

As kcs firmware does not support A32 with DS18B20 sensor, how to make it work.
I can write arudino code to get the temperature if needed, but how can it be use together with kcs firmware?
Need some help. Thank you.

here is KinCony firmware for ALR LoRa board - ALR. it support control relay , monitor DS18B20 temperature and 4 channel analog input, 1 channel digital input state in home assistant by MQTT. You not need config any code for home assistant yaml. Because we have design firmware enabled MQTT auto discovery for home assistant.
   

here are two ALR board.  one work as RECEIVER(gateway), another work as TRANSMIT(read sensor state, control relay), just set DIP switch on PCB, let two board same DIP state, so that they will communication with each other, easy!

   

RECEIVER(gateway) board's LCD displayer will show MQTT broker connection state, LoRa signal value and how many LoRa package have received.
TRANSMIT board's LCD displayer will show DS18B20 temperature value,  LoRa signal value and how many LoRa package have sent.

   

here is two firmware BIN file for different board:
for RECEIVER board:
  ALR-RECEIVER-20240904.ino.merged.zip (Size: 614.04 KB / Downloads: 488)
for TRANSMIT board: 
  ALR-TRANSMIT_20240904.ino.merged.zip (Size: 606.17 KB / Downloads: 427)

download firmware by ESP32 DOWNLOAD TOOL:
   
chose ESP32-S3 and USB mode.

   
chose RECEIVER board's firmware and set address to 0x0

   
chose TRANSMIT board's firmware and set address to 0x0

set router's wifi ssid, password, mqtt broker ip, mqtt port, mqtt username, mqtt password for RECEIVER board via USB-C cable.

config json command:
{
  "wifi_name":"KinCony",
  "wifi_psw":"a12345678",
  "mqtt_ip":"192.168.3.124",
  "mqtt_port":"1883",
  "mqtt_user":"mqtt",
  "mqtt_psw":"123"
}

   
serial port debug tool download:

  UartAssist.zip (Size: 468.4 KB / Downloads: 464)

after config complete and reboot. you can see KinCony ALR board is showed on home assistant DEVICE list:
   

you can add these entities to home assistant dashboard.
   

Hi, I Have just purchased a KC868 A6 unit and would like to see a user guide on how to connect to this device and upload a program to it from Arduino IDE.

I've tried searching but have not yet found a user guide for the A6.

Thank You

Here is "KCS" firmware for KinCony KC868-A series (ESP32) board.
How to download and use, online guide: https://www.kincony.com/esp32-kcsv2-firmware.html

v2.2.4 improment:
1. replaced new DHT sensor's driver.
2. fixed MQTT protocol format bug.

Attached Files

  KCS_KC868_AIO_V2.2.4.zip (Size: 805.72 KB / Downloads: 415)
  KCS_KC868_AK_V2.2.4.zip (Size: 766.78 KB / Downloads: 394)
  KCS_KC868_AM_V2.2.4.zip (Size: 781.63 KB / Downloads: 422)
  KCS_KC868_AP_V2.2.4.zip (Size: 784.23 KB / Downloads: 376)
  KCS_KC868_ASR_V2.2.4.zip (Size: 761.11 KB / Downloads: 398)
  KCS_KC868_E16S_V2.2.4.zip (Size: 790.79 KB / Downloads: 422)
  KCS_KC868_UAIR_V2.2.4.zip (Size: 767.67 KB / Downloads: 397)
  KCS_KC868_A2_V2.2.4.zip (Size: 794.6 KB / Downloads: 396)
  KCS_KC868_A4_V2.2.4.zip (Size: 781.71 KB / Downloads: 442)
  KCS_KC868_A4S_V2.2.4.zip (Size: 805.34 KB / Downloads: 413)
  KCS_KC868_A6_V2.2.4.zip (Size: 779.79 KB / Downloads: 516)
  KCS_KC868_A8_V2.2.4.zip (Size: 788.5 KB / Downloads: 492)
  KCS_KC868_A8M_V2.2.4.zip (Size: 804.71 KB / Downloads: 419)
  KCS_KC868_A8S_V2.2.4.zip (Size: 806.39 KB / Downloads: 451)
  KCS_KC868_A16_V2.2.4.zip (Size: 795.95 KB / Downloads: 603)
  KCS_KC868_A16S_V2.2.4.zip (Size: 806.61 KB / Downloads: 433)
  KCS_KC868_A32_V2.2.4.zip (Size: 786.12 KB / Downloads: 444)
  KCS_KC868_A32M_V2.2.4.zip (Size: 804.14 KB / Downloads: 401)
  KCS_KC868_A64_V2.2.4.zip (Size: 786.21 KB / Downloads: 393)
  KCS_KC868_A128_V2.2.4.zip (Size: 786.33 KB / Downloads: 374)
  KCS_KC868_AG_V2.2.4.zip (Size: 764.49 KB / Downloads: 425)
  KCS_KC868_AI_V2.2.4.zip (Size: 788.72 KB / Downloads: 421)

RS485 Temperature and Humidity Sensor Modbus RTU Use By SHT30
https://shop.kincony.com/products/rs485-...e-by-sht30

Please tell me the parameters of the Sensor to connect it to the controller via the MODBUS bus

1. Device address: What is the default address, how can it be changed?
2. Data transfer rate (Baud Rate)
3. Number of stop bits
4. Number of data bits
5. Parity
6. Transfer type: RTU or ASCII
7. Bus type: I use 4 wires: RS-485
8. Timeouts and delays: which are preferable for it?

Hi!

anybody had implement Modbus ?
I'm having hard time to get mine working.
I'm using esp32ModbusRTU library.

here is my code;

esp32ModbusRTU modbus(&Serial1, -1); 


void modbusTask(void *pvParameters) {
  Serial1.begin(4800, SERIAL_8N1, RX, TX); 
  printf("Serial1 initialized for Modbus\n");
  vTaskDelay(pdMS_TO_TICKS(1000)); 

    // callbacks  Modbus
    modbus.onData([](uint8_t serverAddress, esp32Modbus::FunctionCode fc, uint8_t* data, size_t length) {
        printf("Modbus Response Received - Server ID: 0x%02x, Function Code: 0x%02x, Length: %u\n", serverAddress, fc, length);
        for (size_t i = 0; i < length; ++i) {
            printf("%02x ", data[i]);
        }
        printf("\n");
    });

    modbus.onError([](esp32Modbus::Error error) {
        printf("Modbus Error: 0x%02x\n", static_cast<uint8_t>(error));
    });

   
    modbus.begin();
  vTaskDelay(pdMS_TO_TICKS(1000)); 

   
    while (true) {
        modbus.readHoldingRegisters(0x01, 0x0000, 4); 
        //vTaskDelay(pdMS_TO_TICKS(1000)); 
    }
}

extern "C" void app_main(void)
{
  vTaskDelay(6000 / portTICK_PERIOD_MS);
  printf("Hello world!\n");
 
    xTaskCreate(modbusTask, "modbusTask", 8192, NULL, 5, NULL);

    while (true) {
        std::cout << "In the while\n" << std::endl;
        //vTaskDelay(pdMS_TO_TICKS(1000));
    }

}

...
#include <esp32ModbusRTU.h>
#include "driver/uart.h"

// Declaration Modbus
esp32ModbusRTU modbus(&Serial1, 10); // 10 is arbitary GPIO because don't use RTS pin


void modbusTask(void *pvParameters) {
// Configurer la communication UART pour Modbus
Serial1.begin(4800, SERIAL_8N1, RX, TX); // Initialise Serial1
printf("Serial1 initialized for Modbus\n");
vTaskDelay(pdMS_TO_TICKS(1000)); // stabilisation time

// Configurer les callbacks de Modbus
modbus.onData([](uint8_t serverAddress, esp32Modbus::FunctionCode fc, uint8_t* data, size_t length) {

printf("Modbus Response Received - Server ID: 0x%02x, Function Code: 0x%02x, Length: %u\n", serverAddress, fc, length);

if (length % 2 != 0) {
printf("Invalid data length\n");
return;
}

for (size_t i = 0; i < length; i += 2) {
uint16_t value = (data[i] << 8) | data[i + 1];
if(i < 5)
value = value / 10;
printf("Register %zu: %u \n", i / 2, value);
}

printf("\n");
});

modbus.onError([](esp32Modbus::Error error) {
printf("Modbus Error: 0x%02x\n", static_cast<uint8_t>(error));
});

// start Modbus
modbus.begin();
vTaskDelay(pdMS_TO_TICKS(1000)); // wait 1 sec to stabilise

while (true) {
modbus.readHoldingRegisters(0x01, 0x0000, 5); // slave address: 0x01
vTaskDelay(pdMS_TO_TICKS(1000));
}
}

extern "C" void app_main(void)
{
xTaskCreate(modbusTask, "modbusTask", 8192, NULL, 5, NULL);

while (true) {
std::cout << "In the while\n" << std::endl;
vTaskDelay(pdMS_TO_TICKS(2000));
}

}