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KC868-A128 PCB size details

Posted by: admin - 04-20-2023, 01:14 AM - Forum: KC868-A128 - No Replies

	KC868-A128_PCB_size_2.pdf (Size: 528.27 KB / Downloads: 637)

KC868-A4 ESP32 DEFAULT FIRWARE

Posted by: ia1 - 04-19-2023, 03:23 AM - Forum: KC868-A4 - Replies (3)

	Hi Can I know from where i can download default firmware for kc868-a4 thanks Imran Alam

KC868-A8M ESP32 8 Channel CAN Bus Board Released

Posted by: admin - 04-19-2023, 12:52 AM - Forum: News - No Replies

	We have designed KC868-A8M (ESP32 CAN Bus Board) for home automation DIYer. it can easy integrate to home assistant by ESPHome. the hardware have 8CH MOSFET output + 8CH digital input + 4CH analog input, support CAN Bus + RS485 + Ethernet + WiFi + Bluetooth + 4G SIM7600 or 2G SIM800L GSM module + DS3231 RTC module + manual control button panel.

Lora Range SX1278

Posted by: bsarevalo - 04-18-2023, 04:59 AM - Forum: KC868-A6 - Replies (8)

Hello everyone ! especially to Hificat... I am developing a project where we are using Lora SX1278 in the KC868-A6 module, according to the characteristics of the Lora the device has a range of 1 km - 5 km, the code used by the sender is the following :

Code:
#include "Arduino.h"

#include "PCF8574.h"

#include <RTClib.h>

#include <Wire.h>

#include <LoRa.h>

#include <SPI.h>

#include <WiFi.h>

#define ss 5

#define rst 21

#define dio0 2

void setup() {

  Serial.begin(115200);

  WiFi.mode(WIFI_STA);

  while (!Serial);

  Serial.println("LoRa Sender");

  LoRa.setPins(ss, rst, dio0);    //setup LoRa transceiver module

  while (!LoRa.begin(433E6))     //433E6 - Asia, 866E6 - Europe, 915E6 - North America

  {

    Serial.println(".");

    delay(500);

  }

  LoRa.setSyncWord(0xA5);

  Serial.println("LoRa Initializing OK!");

  Dwin_hmi.begin(115200);

  LoRa.setPins(ss, rst, dio0);

  pcf8574.pinMode(P0, OUTPUT);

  pcf8574.pinMode(P1, OUTPUT);

  pcf8574.pinMode(P2, OUTPUT);

  pcf8574.pinMode(P3, OUTPUT);

  pcf8574.pinMode(P4, OUTPUT);

  pcf8574.pinMode(P5, OUTPUT);

  Serial.print("Init pcf8574...");

  if (pcf8574.begin()){

    Serial.println("OK");

  }else{

    Serial.println("NO");

  }

  pcf8574.digitalWrite(P0, HIGH);

  pcf8574.digitalWrite(P1, HIGH);

  pcf8574.digitalWrite(P2, HIGH);

  pcf8574.digitalWrite(P3, HIGH);

  pcf8574.digitalWrite(P4, HIGH);

  pcf8574.digitalWrite(P5, HIGH);

}

void loop() {

  LoRa.beginPacket();   //Send LoRa packet to receiver

  LoRa.print("LP01");

  LoRa.endPacket();

  Serial.println("Sending packet LP0: 1 ");

}

And the code for the receiver is the following

Code:
#include "Arduino.h"

#include "PCF8574.h"

#include <RTClib.h>

#include <Wire.h>

#include <LoRa.h>

#include <SPI.h>

#include <MCP23017.h>

#define ss 5

#define rst 14

#define dio0 21

void setup() {

  Serial.begin(115200);

  Serial1.begin(9600,SERIAL_8N1,13,12);

  while (!Serial);

  Serial.println("LoRa Receiver");

  LoRa.setPins(ss, rst, dio0);    //setup LoRa transceiver module

  while (!LoRa.begin(433E6))     //433E6 - Asia, 866E6 - Europe, 915E6 - North America

  {

    Serial.println(".");

    delay(500);

  }

  LoRa.setSyncWord(0xA5);

  Serial.println("LoRa Initializing OK!");

}

void loop() {

  //Serial1.write(0x01);

  //delay(20);

  //Serial1.flush();

  //delay(15);

  int packetSize = LoRa.parsePacket();    // try to parse packet

  if (packetSize)

  {

    Serial.print("Received packet '");

    while (LoRa.available())              // read packet

    {

      String LoRaData = LoRa.readString();

      Serial.print(LoRaData);

      if (LoRaData == "LP01") {

        pcf8574.digitalWrite(P0, HIGH);

      }

      if (LoRaData == "LP00") {

        pcf8574.digitalWrite(P0, LOW);

      }

    }

    Serial.print("' with RSSI ");         // print RSSI of packet

    Serial.println(LoRa.packetRssi());

  }

}

I have soldered the antenna on the correct pin and have done some tests, the communication works fine up to 3 meters, but when I move the modules further than 3 meters the communication fails ... maybe you could help me a little, we require a range of more than 200 meters... can you help me and tell me if I'm making a mistake in programming or installing the hardware? Or if I need to buy another Lora module maybe...?

Attached Files Thumbnail(s)

SmartHome App: Support for Multiple Users?

Posted by: j_griffin100@yahoo.com - 04-18-2023, 02:22 AM - Forum: KC868-HxB series Smart Controller - Replies (1)

	Can the SmartHome app be used by multiple users to control the same controller (H868-16B), each user having their own login and password?

KC868-A16S ESP32 16 Channel Relay Board Released

Posted by: admin - 04-17-2023, 11:11 AM - Forum: News - Replies (13)

	We have designed KC868-A16S (ESP32 16 channel relay board) for home automation DIYer. it can easy integrate to home assistant by ESPHome. the hardware have 16CH relay (MAX AC250V 10A) output + 16CH digital input + 4CH analog input, support RS485 + Ethernet + WiFi + Bluetooth + 4G SIM7600 or 2G SIM800L GSM module + DS3231 RTC module + manual control button panel.

Do the relay on this board support DC as well as AC

Posted by: primeroz - 04-16-2023, 05:50 PM - Forum: KC868-A4 - Replies (1)

	In the docs I see the relay only indicate 10A 250V AC. Most relay module for Arduino I can see on AliExpress also support DC up to 30V. Do this relay support DC as well ? I need to drive an alarm Siren with it which expects 12V DC Thanks

KC868-E16S board/schematic errors

Posted by: AshS - 04-16-2023, 09:41 AM - Forum: KC868-E16S/E16P - Replies (7)

I have been trying to get the A1-A4 inputs working without success.

Working from this drawing: KC868-E16S schematic

I have found some errors:

[Image: KC868-E16-S-fault.png]

I have marked up the errors in red.

A1/CHA1 is connected to R92
A2CHA2 is connected to R91
A3/CHA3 is connected to R83
A4/CHA4 is connected to R82

It seems that the labelling on the board connectors, shown below, is incorrect.

[Image: Screenshot-2023-04-16-at-11-44-40.png]

A1 is connected to GPIO36
A2 is connected to GPIO34
A3 is connected to GPIO35
A4 is connected to GPIO39

Input AA1 is connected to LM224 pin 12
Input AA2 is connected to LM224 pin 10
Input AA3 is connected to LM224 pin 5
Input AA4 is connected to LM224 pin 3

The component labelling of the board matches the corrections that I have made for you on the drawing.

Additionally, you will see that two of the zero ohm resistors on my board, R82 and R83 are open circuit, marked with an X.

Please can you tell me how this can be resolved and provide a link to a correct drawing for my board.

Please can you confirm which GPIO is connected to which Analogue input.

Thank you.

KC868-A6 PCB size details

Posted by: admin - 04-15-2023, 01:15 PM - Forum: KC868-A6 - No Replies

	A6 SIZE.pdf (Size: 52.1 KB / Downloads: 699)

Control relay on KC868-E16S from K868-AM using RS485

Posted by: AshS - 04-14-2023, 09:17 PM - Forum: KC868-AM - Replies (1)

	I am using ESPHome on a E16S and an AM board. I need to control 1 relay on the E16S from the AM board using RS485. Please can you tell me how do use this? I have not used RS485 before. Thank you.

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