Smart Home Automation Forum - KC868-ASR

[Arduino source code for KC868-ASR]-03 Relay auto ON/OFF by date time

Sun, 28 Apr 2024 13:21:10 +0800

This is an arduino sample code for KC868-ASR , auto control relay ON/OFF by date and time. for example ,the demo is every year 4-26 (April 26th) relay will ON, every year 5-2 (May 2nd) relay will OFF. it support command by serial port (USB cable) to send date/time and read date/time.

timer.png (Size: 52 KB / Downloads: 885)

Code:
#include 

#include 

String serial_cmd_rcv = ""; //serial port receiver

typedef struct

{

  byte year;// Last two digits of the year, lib will add 2000.

  byte month;

  byte day;

  byte hour ;

  byte minute ;

  byte second ;

}MY_DATE_STR;

MY_DATE_STR my_date_str = {0};

#define OPEN_RLY_DATA   26

#define OPEN_RLY_MONTH  4

#define CLOSE_RLY_DATA   2

#define CLOSE_RLY_MONTH   5

#define SDA_PIN   26

#define SCL_PIN   27

#define RLY1_PIN  19

#define RLY2_PIN  5

DS3231  rtc; 

bool h12Flag;

bool pmFlag;

static bool bCentury = false;

static bool old_level_high = false;

static bool old_level_low = false;

static bool CompareOpenDate()

{

  return (rtc.getDate()==OPEN_RLY_DATA)&(rtc.getMonth(bCentury)==OPEN_RLY_MONTH);

}

static bool CompareCloseDate()

{

  return (rtc.getDate()==CLOSE_RLY_DATA)&(rtc.getMonth(bCentury)==CLOSE_RLY_MONTH);

}

static void PrintfCurTime()

{

  Serial.print("current time is: ");

  int year = rtc.getYear() + 2000;

  Serial.print(year);

  Serial.print("-");

  Serial.print(rtc.getMonth(bCentury), DEC);

  Serial.print("-");

  // then the date

  Serial.print(rtc.getDate(), DEC);

  Serial.print(" ");

  // and the day of the week

  //Serial.print(rtc.getDoW(), DEC);

  //Serial.print(" ");

  // Finally the hour, minute, and second

  Serial.print(rtc.getHour(h12Flag, pmFlag), DEC);

  Serial.print(":");

  Serial.print(rtc.getMinute(), DEC);

  Serial.print(":");

  Serial.println(rtc.getSecond(), DEC);

}

static void GetSerialCmd() 

{ ////format:D2024-04-28T11:50:22

  /*while (Serial.available() > 0)

  {

    serial_cmd_rcv += char(Serial.read());

    delay(5);  

  } */

  if(Serial.available() > 0)

  {

    delay(100);

    int num_read = Serial.available();

    while(num_read--)

      serial_cmd_rcv += char(Serial.read());

  }

  else return;

  serial_cmd_rcv.trim();

  if(serial_cmd_rcv == "current time")

  {

    PrintfCurTime();

    serial_cmd_rcv = "";

    return;

  }

  Serial.print("rcv length:");

  Serial.println(serial_cmd_rcv.length());

  int indexof_d = serial_cmd_rcv.indexOf('D');

  int indexof_t = serial_cmd_rcv.indexOf('T');

  Serial.print("d index:");Serial.print(indexof_d);

  Serial.print(" t index:");Serial.println(indexof_t);

  if (serial_cmd_rcv.length() != 20 || 

      serial_cmd_rcv.substring(0,1) != "D" ||

      serial_cmd_rcv.substring(11,12) != "T")  

  {

    Serial.println(serial_cmd_rcv);

    serial_cmd_rcv="";

    return;

    }

  Serial.println("setting is start!");

  my_date_str.year = (byte)serial_cmd_rcv.substring(3,5).toInt();

  my_date_str.month = (byte)serial_cmd_rcv.substring(6,8).toInt();

  my_date_str.day = (byte)serial_cmd_rcv.substring(9,11).toInt();

  my_date_str.hour = (byte)serial_cmd_rcv.substring(12,14).toInt();

  my_date_str.minute = (byte)serial_cmd_rcv.substring(15,17).toInt();

  my_date_str.second = (byte)serial_cmd_rcv.substring(18).toInt();

  rtc.setYear(my_date_str.year);

  rtc.setMonth(my_date_str.month);

  rtc.setDate(my_date_str.day);

  rtc.setHour(my_date_str.hour);

  rtc.setMinute(my_date_str.minute);

  rtc.setSecond(my_date_str.second);

  serial_cmd_rcv = ""; 

  Serial.println("setting is ending!");

}

static bool GetEdgeP(bool cur,bool old)  {return (cur & !old);}

static bool bOpen,bClose;

void setup() {

  // put your setup code here, to run once:

  // Start the I2C interface

  Wire.begin(SDA_PIN,SCL_PIN,40000);

  // Setup Serial connection

  Serial.begin(115200);

  pinMode(RLY1_PIN,OUTPUT);

  pinMode(RLY2_PIN,OUTPUT);

  // Set 12/24h mode. True is 12-h, false is 24-hour.

  rtc.setClockMode(false);////24h

  PrintfCurTime();

  while(Serial.read()>=0){}

}

void loop() {

  // put your main code here, to run repeatedly:

  GetSerialCmd();

  bOpen = CompareOpenDate();

  bClose = CompareCloseDate();

  if(GetEdgeP(bOpen,old_level_high)) digitalWrite(RLY1_PIN,HIGH);

  if(GetEdgeP(bClose,old_level_low)) digitalWrite(RLY1_PIN,LOW);

  old_level_high = bOpen;

  old_level_low = bClose;

  //delay (1000);

}

source code download ZIP file:
  DS3231TST-20240428.zip (Size: 1.53 KB / Downloads: 596)
before use code need install DS3231 arduino library firstly.

  arduino library.png (Size: 24.68 KB / Downloads: 832)
download firmware by arduino IDE:

  asr-pcb.jpg (Size: 440.57 KB / Downloads: 884)
serial port by USB 115200bps
set date and time command example: D2024-04-28T11:50:22
print current date and time: current time

  set-date-time.png (Size: 84.65 KB / Downloads: 893)

  read-date-time.png (Size: 79.07 KB / Downloads: 920)

because it's not easy to battery by air plane, so if you want timer work when power off, you can install the CR1220 on KC868-ASR PCB bottom side.

  asr-battery.jpg (Size: 353.67 KB / Downloads: 873)

  cr1220-battery.jpg (Size: 39.51 KB / Downloads: 880)

KC868-ASR SD Card

Sat, 10 Feb 2024 02:50:14 +0800

Do we have example Arduino code for recording/logging function on TF card on KC868-ASR v1.0. Want to record Temperature as read from a DS18B20 along with Real Time (RTC) Date and time every hour on a csv file. KCS v2 firmware does not seem to have this feature.

KC868-ASR wiring diagram

Thu, 24 Aug 2023 16:27:59 +0800

ASR.jpg (Size: 1.8 MB / Downloads: 1040)

KC868-ASR ESPHome demo config for home assistant

Sun, 05 Mar 2023 07:21:23 +0800

home-assistant-ASR.png (Size: 80.09 KB / Downloads: 954)
esphome:
name: asr

esp32:
board: esp32dev
framework:
type: arduino

# Enable logging
logger:

# Enable Home Assistant API
api:
encryption:
key: "Xqy9f8iJ49cr7o8IWE1sFnG9EAEnxHVYlGUQBdnKE6Q="

ota:
password: "d13799179d079d89758ad1a0fd1c4560"

wifi:
ssid: KinCony
password: a12345678

# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Asr Fallback Hotspot"
password: "KqbpeFnrzcWf"

captive_portal:

i2c:
sda: 26
scl: 27
scan: true
id: bus_a

switch:
- platform: gpio
pin: GPIO19
name: "asr-relay1"

- platform: gpio
pin: GPIO5
name: "asr-relay2"

- platform: gpio
pin: GPIO23
name: "asr-led1"

- platform: gpio
pin: GPIO22
name: "asr-led2"

- platform: gpio
pin: GPIO18
name: "asr-beep"

binary_sensor:
- platform: gpio
pin:
number: 0
inverted: true
name: "asr-button"

dallas:
- pin: 32
update_interval: 5s

sensor:
- platform: dallas
address: 0x7b062162cfe98128
name: "asr-t2"

KC868-ASR_ESPHome.txt (Size: 1.1 KB / Downloads: 526)

KC868-ASR ESP32 I/O pin define

Sun, 05 Mar 2023 07:20:24 +0800

Button S2: GPIO0

TH1: GPIO32 (use for DS18B20/DHT11 sensor)
TH2: GPIO33 (use for DS18B20/DHT11 sensor)

Relay1:GPIO19
Relay2:GPIO5

IIC SDA:GPIO26
IIC SCL:GPIO27

LED1:GPIO23
LED2:GPIO22

Beep: GPIO18

DS3231 IIC address: 0x68

TF_Card:

DAT2:GPIO12
DAT3: GPIO13
CMD: GPIO15
CLK: GPIO14
DAT0:GPIO2
DAT1:GPIO4

free GPIO: GPIO16, GPIO17

[Arduino source code for KC868-ASR]-04 BEEP

Thu, 02 Mar 2023 14:39:14 +0800

Code:
#define BEEP 18

#define S2 0

void setup() {

  Serial.begin(115200);

  pinMode(BEEP,OUTPUT);

  pinMode(S2,INPUT);

  digitalWrite(BEEP, HIGH);

  delay(200);

  digitalWrite(BEEP,LOW);

  delay(200);

}

void loop() {

if(digitalRead(S2)==LOW){

  delay(20);

  if(digitalRead(S2)==LOW)

  {

    digitalWrite(BEEP, HIGH);

    delay(100);

    digitalWrite(BEEP, LOW);

    delay(10);  

  }  

}else digitalWrite(BEEP, LOW);

 }

KC868-ASR_BEEP.zip (Size: 102.86 KB / Downloads: 552)

[Arduino source code for KC868-ASR]-03 DS18B20

Thu, 02 Mar 2023 14:38:34 +0800

Code:
#include 

DS18B20 ds1(32);  //channel-1-DS18b20

DS18B20 ds2(33);  //channel-2-DS18b20

void setup() {

  Serial.begin(115200);

}

void loop() {

 Serial.printf("T1:%.2f || T2:%.2f \n",ds1.getTempC(),ds2.getTempC());

 delay(1000);

}

KC868-ASR_DS18B20.zip (Size: 105.14 KB / Downloads: 585)

[Arduino source code for KC868-ASR]-02 Relay ON AND OFF

Thu, 02 Mar 2023 14:37:26 +0800

Code:
#define OUT0 19

#define OUT1 5

void setup() {

  Serial.begin(115200);

  pinMode(OUT0,OUTPUT);

  pinMode(OUT1,OUTPUT);    

}

void loop() {

      digitalWrite(OUT0, HIGH);

      delay(200);

      digitalWrite(OUT1, HIGH);

      delay(200);  

      digitalWrite(OUT0,LOW);

      delay(200);

      digitalWrite(OUT1, LOW);

      delay(200);

 }

KC868-ASR_RELAY.zip (Size: 102.81 KB / Downloads: 595)

[Arduino source code for KC868-ASR]-01 LED ON AND OFF

Thu, 02 Mar 2023 14:36:46 +0800

Code:
#define LED1 23

#define LED2 22

void setup() {

  Serial.begin(115200);

  pinMode(LED1,OUTPUT);

  pinMode(LED2,OUTPUT);

}

void loop() {

  digitalWrite(LED1, LOW);

  delay(200);

  digitalWrite(LED2, LOW);

  delay(200); 

  digitalWrite(LED1, HIGH);

  delay(200);

  digitalWrite(LED2, HIGH);

  delay(200);

 }

KC868-ASR_LED.zip (Size: 102.79 KB / Downloads: 607)