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[arduino code examples fo...
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[arduino code examples for A2v3]-05 Read free GPIO state

Posted by: admin - 04-20-2025, 05:57 AM - Forum: KC868-A2v3 - No Replies

Code:
/**

 * @brief Simple example to read multiple digital inputs using ESP32

 * @details This program demonstrates how to read digital input states

 *          from GPIO18, GPIO8, GPIO4, GPIO5, GPIO6, and GPIO38 of an ESP32 development board.

 *

 * Made by KinCony IoT: https://www.kincony.com

 */

// Define the GPIO pins for digital inputs

#define INPUT1_PIN 18  // GPIO18

#define INPUT2_PIN 8   // GPIO8

#define INPUT3_PIN 4   // GPIO4

#define INPUT4_PIN 5   // GPIO5

#define INPUT5_PIN 6   // GPIO6

#define INPUT6_PIN 38  // GPIO38

void setup() {

    // Initialize the serial communication for debugging

    Serial.begin(115200);

    Serial.println("ESP32 Digital Input Read Example");

    // Set the input pins as INPUT

    pinMode(INPUT1_PIN, INPUT);

    pinMode(INPUT2_PIN, INPUT);

    pinMode(INPUT3_PIN, INPUT);

    pinMode(INPUT4_PIN, INPUT);

    pinMode(INPUT5_PIN, INPUT);

    pinMode(INPUT6_PIN, INPUT);

}

void loop() {

    // Read the state of the digital inputs

    int state1 = digitalRead(INPUT1_PIN);

    int state2 = digitalRead(INPUT2_PIN);

    int state3 = digitalRead(INPUT3_PIN);

    int state4 = digitalRead(INPUT4_PIN);

    int state5 = digitalRead(INPUT5_PIN);

    int state6 = digitalRead(INPUT6_PIN);

    // Print the states to the Serial Monitor

    Serial.print("GPIO18 State: ");

    Serial.println(state1);

    Serial.print("GPIO8 State: ");

    Serial.println(state2);

    Serial.print("GPIO4 State: ");

    Serial.println(state3);

    Serial.print("GPIO5 State: ");

    Serial.println(state4);

    Serial.print("GPIO6 State: ");

    Serial.println(state5);

    Serial.print("GPIO38 State: ");

    Serial.println(state6);

    // Wait for 500 milliseconds before reading again

    delay(500);

}

arduino ino file download:

.zip

5-free-gpio-state.zip (Size: 773 bytes / Downloads: 630)
BIN file (you can use esp32 download tool download to ESP32-S3 with address 0x0 then directly to use) download:

.zip

5-free-gpio-state.ino.merged.zip (Size: 179.48 KB / Downloads: 664)

[arduino code examples for A2v3]-04 RS485 communication test

Posted by: admin - 04-20-2025, 05:54 AM - Forum: KC868-A2v3 - No Replies

Code:
/*

 * Made by KinCony IoT: https://www.kincony.com

 *

 * RS485 Communication Test

 *

 * This program is a simple test for RS485 communication using ESP32-S3.

 * It will send a message over RS485 and then read incoming messages.

 * The TXD pin is defined as GPIO 18 and RXD pin is defined as GPIO 8.

 */

#include <HardwareSerial.h>

// Define RS485 pins

#define RS485_RXD 15

#define RS485_TXD 7

// Create a hardware serial object

HardwareSerial rs485Serial(1);

void setup() {

  // Start serial communication for debugging

  Serial.begin(115200);

  while (!Serial);

  // Initialize RS485 Serial communication

  rs485Serial.begin(9600, SERIAL_8N1, RS485_RXD, RS485_TXD);

  Serial.println("RS485 Test Start");

}

void loop() {

  // Send a test message

  rs485Serial.println("Hello from KinCony A2v3!");

  // Wait for a short period

  delay(1000);

  // Check if data is available to read

  if (rs485Serial.available()) {

    String receivedMessage = "";

    while (rs485Serial.available()) {

      char c = rs485Serial.read();

      receivedMessage += c;

    }

    // Print the received message

    Serial.print("Received: ");

    Serial.println(receivedMessage);

  }

  // Wait before sending the next message

  delay(2000);

}

arduino ino file download:

.zip

4-RS485-Test.zip (Size: 763 bytes / Downloads: 685)
BIN file (you can use esp32 download tool download to ESP32-S3 with address 0x0 then directly to use) download:

.zip

4-RS485-Test.ino.merged.zip (Size: 184.35 KB / Downloads: 642)

[arduino code examples for A2v3]-02 Read digital input ports state

Posted by: admin - 04-20-2025, 05:50 AM - Forum: KC868-A2v3 - No Replies

Code:
/**

 * @brief Simple example to read two digital inputs using ESP32

 * @details This program demonstrates how to read two digital input states

 *          from GPIO16 and GPIO17 of an ESP32 development board.

 *

 * Made by KinCony IoT: https://www.kincony.com

 */

// Define the GPIO pins for digital inputs

#define INPUT1_PIN 16  // GPIO16 for Digital Input 1

#define INPUT2_PIN 17  // GPIO17 for Digital Input 2

void setup() {

    // Initialize the serial communication for debugging

    Serial.begin(115200);

    Serial.println("ESP32 Digital Input Read Example");

    // Set the input pins as INPUT

    pinMode(INPUT1_PIN, INPUT);

    pinMode(INPUT2_PIN, INPUT);

}

void loop() {

    // Read the state of the digital inputs

    int state1 = digitalRead(INPUT1_PIN);

    int state2 = digitalRead(INPUT2_PIN);

    // Print the states to the Serial Monitor

    Serial.print("Digital Input 1 State: ");

    Serial.println(state1);

    Serial.print("Digital Input 2 State: ");

    Serial.println(state2);

    // Wait for 500 milliseconds before reading again

    delay(500);

}

arduino ino file download:

.zip

2-digital-input.zip (Size: 667 bytes / Downloads: 623)
BIN file (you can use esp32 download tool download to ESP32-S3 with address 0x0 then directly to use) download:

.zip

2-digital-input.ino.merged.zip (Size: 179.35 KB / Downloads: 612)

[arduino code examples for A2v3]-01 Turn ON/OFF OUTPUT

Posted by: admin - 04-20-2025, 05:48 AM - Forum: KC868-A2v3 - No Replies

Code:
/**

 * @brief Simple example to control two relays using ESP32

 * @details This program demonstrates how to control two relays connected to GPIO40 and GPIO39

 *          of an ESP32 development board.

 *

 * Made by KinCony IoT: https://www.kincony.com

 */

// Define the GPIO pins for the relays

#define RELAY1_PIN 40  // GPIO40 for Relay 1

#define RELAY2_PIN 39  // GPIO39 for Relay 2

void setup() {

    // Initialize the serial communication for debugging

    Serial.begin(115200);

    Serial.println("ESP32 Relay Control Example");

    // Set the relay pins as output

    pinMode(RELAY1_PIN, OUTPUT);

    pinMode(RELAY2_PIN, OUTPUT);

    // Turn off both relays at startup (assuming active LOW relays)

    digitalWrite(RELAY1_PIN, HIGH);

    digitalWrite(RELAY2_PIN, HIGH);

}

void loop() {

    Serial.println("Turning ON Relay 1");

    digitalWrite(RELAY1_PIN, LOW); // Activate relay 1

    delay(1000); // Wait for 1 second

    Serial.println("Turning OFF Relay 1");

    digitalWrite(RELAY1_PIN, HIGH); // Deactivate relay 1

    delay(1000);

    Serial.println("Turning ON Relay 2");

    digitalWrite(RELAY2_PIN, LOW); // Activate relay 2

    delay(1000);

    Serial.println("Turning OFF Relay 2");

    digitalWrite(RELAY2_PIN, HIGH); // Deactivate relay 2

    delay(1000);

}

arduino ino file download:

.zip

1-output.zip (Size: 683 bytes / Downloads: 615)
BIN file (you can use esp32 download tool download to ESP32-S3 with address 0x0 then directly to use) download:

.zip

1-output.ino.merged.zip (Size: 179.19 KB / Downloads: 665)

KC868-A2v3 ESPHome yaml for home assistant

Posted by: admin - 04-20-2025, 05:46 AM - Forum: KC868-A2v3 - Replies (2)

Code:
esphome:

  name: a2v3

  friendly_name: a2v3

esp32:

  board: esp32-s3-devkitc-1

  framework:

    type: arduino

# Enable logging

logger:

# Enable Home Assistant API

api:

ethernet:

  type: W5500

  clk_pin: GPIO42

  mosi_pin: GPIO43

  miso_pin: GPIO44

  cs_pin: GPIO41

  interrupt_pin: GPIO2

  reset_pin: GPIO1

i2c:

   - id: bus_a

     sda: 48

     scl: 47

     scan: true

     frequency: 400kHz

uart:

  - id: uart_1

    baud_rate: 9600

    debug:

      direction: BOTH

      dummy_receiver: true

      after:

        timeout: 10ms

    tx_pin: 7

    rx_pin: 15

  - id: uart_sim7600

    baud_rate: 115200

    debug:

      direction: BOTH

      dummy_receiver: true

      after:

        timeout: 10ms

      sequence:

        - lambda: UARTDebug::log_string(direction, bytes);

    tx_pin: 10

    rx_pin: 9

switch:

  - platform: gpio

    pin: 40

    name: "A2v3-Relay1"

  - platform: gpio

    pin: 39

    name: "A2v3-Relay2"

  - platform: uart

    uart_id: uart_1

    name: "RS485 Button"

    data: [0x11, 0x22, 0x33, 0x44, 0x55]

  - platform: uart

    uart_id: uart_sim7600

    name: "UART 4G"

    data: "AT+CGSN\r\n" # read 4G SIM7600 ID

binary_sensor:

  - platform: gpio

    name: "A2v3-input1"

    pin: 

      number: 16

      inverted: true

  - platform: gpio

    name: "A2v3-input2"

    pin:

      number: 17

      inverted: true

  - platform: gpio

    name: "IO18"

    pin:

      number: 18

      inverted: true

  - platform: gpio

    name: "IO8"

    pin:

      number: 8

      inverted: true

  - platform: gpio

    name: "IO4"

    pin:

      number: 4

      mode:

        input: true

        pullup: true

      inverted: true

  - platform: gpio

    name: "IO5"

    pin:

      number: 5

      mode:

        input: true

        pullup: true

      inverted: true

  - platform: gpio

    name: "IO6"

    pin:

      number: 6

      mode:

        input: true

        pullup: true

      inverted: true

  - platform: gpio

    name: "IO38"

    pin:

      number: 38

      mode:

        input: true

        pullup: true

      inverted: true

web_server:

  port: 80

font:

  - file: "gfonts://Roboto"

    id: roboto

    size: 20

display:

  - platform: ssd1306_i2c

    i2c_id: bus_a

    model: "SSD1306 128x64"

    address: 0x3C

    lambda: |-

      it.printf(0, 0, id(roboto), "A2v3");

esphome yaml file download:

.txt

A2v3-HA.txt (Size: 2.39 KB / Downloads: 510)

KC868-A2v3 ESP32-S3 IO pins define

Posted by: admin - 04-20-2025, 05:44 AM - Forum: KC868-A2v3 - No Replies

IIC Bus:

SDA:GPIO48
SCL:GPIO47

24C02 EPROM i2c address: 0x50
DS3231 RTC i2c address: 0x68
SSD1306 display: i2c address:0x3c
-----------------

1-wire (pull-up resistance on PCB):
1-wire(TMP1):GPIO18
1-wire(TMP2):GPIO8

free GPIOs (without pull-up resistance on PCB):
free gpio-1:GPIO4
free gpio-2:GPIO5
free gpio-3:GPIO6
free gpio-4:GPIO38
-----------------

Ethernet (W5500) I/O define:

clk_pin: GPIO42
mosi_pin: GPIO43
miso_pin: GPIO44
cs_pin: GPIO41

interrupt_pin: GPIO2
reset_pin: GPIO1

--------------------
RS485:
RXD:GPIO15
TXD:GPIO7

4G module:
RXD:GPIO9
TXD:GPIO10

--------------------
SD Card:
SPI-MOSI:GPIO12
SPI-SCK:GPIO13
SPI-MISO:GPIO14
SPI-CS:GPIO11
SPI-CD:GPIO21

--------------------
Relay1:GPIO40
Relay2:GPIO39

--------------------
digital input-1:GPIO16
digital input-2:GPIO17

KC868-A16 IR Input

Posted by: cyberrailpete - 04-20-2025, 05:33 AM - Forum: KC868-A16 - Replies (11)

	Hello. I have a KC868-A16 - Great board. I have a number of IR sensors that need to send back state via MQTT to different topics so have had to write custom sketch in Aurdino IDE. Problem is the sensor never goes inactive. I have tested the IR with a meter and voltage drop on digital out when active and high when inactive. KC868-A16 seems to be 12v on the input which is weird. Help please!

RF Transmitter not working in ESPHome

Posted by: johnsmith8439 - 04-19-2025, 04:20 PM - Forum: KC868-AG / AG Pro / AG8 / Z1 - Replies (4)

Hello,
I installed ESPHome on the KC868-AG. RF receiver works, I can receive RF signals from the smart plug's remote:

[23:17:05][I][remote.rc_switch:261]: Received RCSwitch Raw: protocol=2 data='10010010001010100110110110010011'
[23:17:05][I][remote.rc_switch:261]: Received RCSwitch Raw: protocol=2 data='10010010001010100110110110010011'
[23:17:05][I][remote.rc_switch:261]: Received RCSwitch Raw: protocol=2 data='10010010001010100110110110010011'
[23:17:05][I][remote.rc_switch:261]: Received RCSwitch Raw: protocol=2 data='1001001000101010011011011001001'

But transmitter doesn't work, I cannot control the smart plug with RF using the transmitter.

The log after using transmitter:
[23:29:02][D][button:010]: 'Smart Plug On' Pressed.
[23:29:02][W][component:239]: Component api took a long time for an operation (287 ms).
[23:29:02][W][component:240]: Components should block for at most 30 ms.
[23:29:02][I][remote.rc_switch:261]: Received RCSwitch Raw: protocol=2 data='10010010001010100110110110010011'
[23:29:02][I][remote.rc_switch:261]: Received RCSwitch Raw: protocol=2 data='10010010001010100110110110010011'
[23:29:02][I][remote.rc_switch:261]: Received RCSwitch Raw: protocol=2 data='10010010001010100110110110010011'
[23:29:02][I][remote.rc_switch:261]: Received RCSwitch Raw: protocol=2 data='1001001000101010011011011001001'

Here is my ESPHome code:

Code:
remote_transmitter:

  - id: transmitter_ir

    pin: GPIO2

    carrier_duty_percent: 50%

  - id: transmitter_rf

    pin: GPIO22

    carrier_duty_percent: 50%

remote_receiver:

  # see https://esphome.io/components/remote_transmitter.html#setting-up-infrared-devices

  # for details on discovering the correct codes for your devices

  - id: receiver_ir

    pin:

      number: GPIO23

      inverted: True

    dump: rc_switch

  # see https://esphome.io/components/remote_transmitter.html#setting-up-rf-devices

  # for details on discovering the correct codes for your devices

  - id: receiver_rf

    pin:

      number: GPIO13

    dump: rc_switch

    # Settings to optimize recognition of RF devices

    tolerance: 50%

    filter: 250us

    idle: 4ms

    buffer_size: 2kb    

button:

  - platform: template

    name: "Door Chime"

    on_press:

      - remote_transmitter.transmit_rc_switch_raw:

          transmitter_id: transmitter_rf

          protocol: 5

          code: "001010100010100000"

          repeat:

            times: 10

            wait_time: 0s

  - platform: template

    name: "Smart Plug On"

    on_press:

      - remote_transmitter.transmit_rc_switch_raw:

          transmitter_id: transmitter_rf

          protocol: 2

          code: "10010010001010100110110110010011"

          repeat:

            times: 10

            wait_time: 0s

  - platform: template

    name: "Smart Plug Off"

    on_press:

      - remote_transmitter.transmit_rc_switch_raw:

          transmitter_id: transmitter_rf

          protocol: 2

          code: "01000100101011010110100011010011"

          repeat:

            times: 10

            wait_time: 0s

Input protection

Posted by: wchpikus - 04-19-2025, 02:51 PM - Forum: Development - Replies (5)

	Hello One of binary input stop working.. I checked and translator was damage. I do not know-how how, but it could be protect emc or overload. I just replace them, but I wojny about induction when I will connect them to 20m ftp.

Kc-868-a32 uart

Posted by: wchpikus - 04-18-2025, 06:51 PM - Forum: KC868-A32/A32 Pro - Replies (3)

	Hello What ping are used to rs485? Failed config uart: [source /config/esphome/rolety-kc868-a32.yaml:27] - id: uart_modbus baud_rate: 9600 tx_pin: 9 This pin cannot be used on ESP32s and is already used by the flash interface (function: Flash Data 1). rx_pin: 8 Regards

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