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[arduino code examples for B4]-03 Read ADS1115 analog input ports value

Posted by: admin - 01-14-2026, 03:53 AM - Forum: B4 - No Replies

Code:
/*

 * This program reads voltage values from the ADS1115 analog-to-digital converter

 * on all four channels (A0, A1, A2, A3) and prints the results through the serial port.

 * The ADS1115 communicates via the I2C protocol. This version of the code includes 

 * the capability to specify custom SDA and SCL pins for I2C communication.

 *

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

 *

 */

#include <Wire.h>                // Library for I2C communication

#include <DFRobot_ADS1115.h>     // Library for ADS1115 ADC module

// Define the I2C SDA and SCL pins for communication with ADS1115

#define SDA_PIN 8  

#define SCL_PIN 18  

// Initialize ADS1115 instance using the Wire library

DFRobot_ADS1115 ads(&Wire);

void setup(void) 

{

    // Begin serial communication at a baud rate of 115200

    Serial.begin(115200);

    // Initialize the I2C bus using the defined SDA and SCL pins

    Wire.begin(SDA_PIN, SCL_PIN);

    // Set the I2C address for the ADS1115 (default: 0x49)

    ads.setAddr_ADS1115(ADS1115_IIC_ADDRESS0);   // Address is 0x49

    // Set the gain for the ADS1115 (2/3x gain allows for a maximum input voltage of 6.144V)

    ads.setGain(eGAIN_TWOTHIRDS);

    // Set the ADS1115 to operate in single-shot mode (each reading is a single conversion)

    ads.setMode(eMODE_SINGLE);

    // Set the sample rate to 128 samples per second (SPS)

    ads.setRate(eRATE_128);

    // Set the operational status mode to single-conversion start

    ads.setOSMode(eOSMODE_SINGLE);

    // Initialize the ADS1115 module

    ads.init();

}

void loop(void) 

{

    // Check if the ADS1115 is properly connected and functioning

    if (ads.checkADS1115())

    {

        // Variables to store the voltage readings for each channel

        int16_t adc0, adc1, adc2, adc3;

        // Read the voltage from channel A0 and print the value

        adc0 = ads.readVoltage(0);

        Serial.print("A0:");

        Serial.print(adc0);

        Serial.print("mV,  ");    // Print the value in millivolts

        // Read the voltage from channel A1 and print the value

        adc1 = ads.readVoltage(1);

        Serial.print("A1:");

        Serial.print(adc1);

        Serial.print("mV,  ");    // Print the value in millivolts

        // Read the voltage from channel A2 and print the value

        adc2 = ads.readVoltage(2);

        Serial.print("A2:");

        Serial.print(adc2);

        Serial.print("mV,  ");    // Print the value in millivolts

        // Read the voltage from channel A3 and print the value

        adc3 = ads.readVoltage(3);

        Serial.print("A3:");

        Serial.print(adc3);

        Serial.println("mV");     // Print the value in millivolts and end the line

    }

    else

    {

        // If ADS1115 is not connected, print a message indicating disconnection

        Serial.println("ADS1115 Disconnected!");

    }

    // Wait for 1 second before the next loop iteration

    delay(1000);

}

arduino ino file download:

.zip

3-ads1115_adc.zip (Size: 1.2 KB / Downloads: 285)
BIN file (you can use esp32 download tool download to ESP32-S3 with address 0x0 then directly to use) download:

.zip

3-ads1115_adc.ino.merged.zip (Size: 192.69 KB / Downloads: 299)

[arduino code examples for B4M]-03 Read ADS1115 analog input ports value

Posted by: admin - 01-14-2026, 03:53 AM - Forum: B4M - No Replies

Code:
/*

 * This program reads voltage values from the ADS1115 analog-to-digital converter

 * on all four channels (A0, A1, A2, A3) and prints the results through the serial port.

 * The ADS1115 communicates via the I2C protocol. This version of the code includes 

 * the capability to specify custom SDA and SCL pins for I2C communication.

 *

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

 *

 */

#include <Wire.h>                // Library for I2C communication

#include <DFRobot_ADS1115.h>     // Library for ADS1115 ADC module

// Define the I2C SDA and SCL pins for communication with ADS1115

#define SDA_PIN 8  

#define SCL_PIN 18  

// Initialize ADS1115 instance using the Wire library

DFRobot_ADS1115 ads(&Wire);

void setup(void) 

{

    // Begin serial communication at a baud rate of 115200

    Serial.begin(115200);

    // Initialize the I2C bus using the defined SDA and SCL pins

    Wire.begin(SDA_PIN, SCL_PIN);

    // Set the I2C address for the ADS1115 (default: 0x49)

    ads.setAddr_ADS1115(ADS1115_IIC_ADDRESS0);   // Address is 0x49

    // Set the gain for the ADS1115 (2/3x gain allows for a maximum input voltage of 6.144V)

    ads.setGain(eGAIN_TWOTHIRDS);

    // Set the ADS1115 to operate in single-shot mode (each reading is a single conversion)

    ads.setMode(eMODE_SINGLE);

    // Set the sample rate to 128 samples per second (SPS)

    ads.setRate(eRATE_128);

    // Set the operational status mode to single-conversion start

    ads.setOSMode(eOSMODE_SINGLE);

    // Initialize the ADS1115 module

    ads.init();

}

void loop(void) 

{

    // Check if the ADS1115 is properly connected and functioning

    if (ads.checkADS1115())

    {

        // Variables to store the voltage readings for each channel

        int16_t adc0, adc1, adc2, adc3;

        // Read the voltage from channel A0 and print the value

        adc0 = ads.readVoltage(0);

        Serial.print("A0:");

        Serial.print(adc0);

        Serial.print("mV,  ");    // Print the value in millivolts

        // Read the voltage from channel A1 and print the value

        adc1 = ads.readVoltage(1);

        Serial.print("A1:");

        Serial.print(adc1);

        Serial.print("mV,  ");    // Print the value in millivolts

        // Read the voltage from channel A2 and print the value

        adc2 = ads.readVoltage(2);

        Serial.print("A2:");

        Serial.print(adc2);

        Serial.print("mV,  ");    // Print the value in millivolts

        // Read the voltage from channel A3 and print the value

        adc3 = ads.readVoltage(3);

        Serial.print("A3:");

        Serial.print(adc3);

        Serial.println("mV");     // Print the value in millivolts and end the line

    }

    else

    {

        // If ADS1115 is not connected, print a message indicating disconnection

        Serial.println("ADS1115 Disconnected!");

    }

    // Wait for 1 second before the next loop iteration

    delay(1000);

}

arduino ino file download:

.zip

3-ads1115_adc.zip (Size: 1.2 KB / Downloads: 293)
BIN file (you can use esp32 download tool download to ESP32-S3 with address 0x0 then directly to use) download:

.zip

3-ads1115_adc.ino.merged.zip (Size: 192.69 KB / Downloads: 299)

[arduino code examples for B4]-02 Read digital input ports state

Posted by: admin - 01-14-2026, 03:52 AM - Forum: B4 - No Replies

Code:
/*

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

 *

 * Description:

 * This Arduino program reads the state of a 16-channel PCF8574 I/O expander

 * and prints the state of all input pins to the Serial Monitor. The state of 

 * each pin is represented as a bit in a 8-bit value, where each bit corresponds 

 * to an input pin. The program prints the input state in binary format.

 *

 * Pin Definitions:

 * - SDA: GPIO 21

 * - SCL: GPIO 22

 * - PCF8575 I2C Address: 0x24

 */

#include "Arduino.h"

#include "PCF8574.h"

// Define I2C pins

#define I2C_SDA 8  // Define SDA pin

#define I2C_SCL 18  // Define SCL pin

// Set I2C address

PCF8574 pcf8574_IN1(0x24); // The I2C address of the PCF8575

void setup() {

    Serial.begin(115200);

    // Initialize I2C communication

    Wire.begin(I2C_SDA, I2C_SCL); // Initialize I2C with defined SDA and SCL pins

    pcf8574_IN1.pinMode(P0, INPUT);

    pcf8574_IN1.pinMode(P1, INPUT);

    pcf8574_IN1.pinMode(P2, INPUT);

    pcf8574_IN1.pinMode(P3, INPUT);

    pcf8574_IN1.begin(); // Initialize the PCF8575

    Serial.println("KinCony F4 4 channel input state 0:ON  1:OFF");

}

void loop() {

    uint16_t state = 0;

    // Read the state of each pin (assuming 16 pins)

    for (int pin = 0; pin < 4; pin++) {

        if (pcf8574_IN1.digitalRead(pin)) {

            state |= (1 << pin); // Set the bit for the active pin

        }

    }

    Serial.print("Input state: ");

    Serial.println(state, BIN); // Print the state of inputs in binary

    delay(500); // Delay 500ms

}

arduino ino file download:

.zip

2-digital-input.zip (Size: 879 bytes / Downloads: 275)
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: 199.52 KB / Downloads: 331)

[arduino code examples for B4M]-02 Read digital input ports state

Posted by: admin - 01-14-2026, 03:52 AM - Forum: B4M - No Replies

Code:
/*

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

 *

 * Description:

 * This Arduino program reads the state of a 16-channel PCF8574 I/O expander

 * and prints the state of all input pins to the Serial Monitor. The state of 

 * each pin is represented as a bit in a 8-bit value, where each bit corresponds 

 * to an input pin. The program prints the input state in binary format.

 *

 * Pin Definitions:

 * - SDA: GPIO 21

 * - SCL: GPIO 22

 * - PCF8575 I2C Address: 0x24

 */

#include "Arduino.h"

#include "PCF8574.h"

// Define I2C pins

#define I2C_SDA 8  // Define SDA pin

#define I2C_SCL 18  // Define SCL pin

// Set I2C address

PCF8574 pcf8574_IN1(0x24); // The I2C address of the PCF8575

void setup() {

    Serial.begin(115200);

    // Initialize I2C communication

    Wire.begin(I2C_SDA, I2C_SCL); // Initialize I2C with defined SDA and SCL pins

    pcf8574_IN1.pinMode(P0, INPUT);

    pcf8574_IN1.pinMode(P1, INPUT);

    pcf8574_IN1.pinMode(P2, INPUT);

    pcf8574_IN1.pinMode(P3, INPUT);

    pcf8574_IN1.begin(); // Initialize the PCF8575

    Serial.println("KinCony F4 4 channel input state 0:ON  1:OFF");

}

void loop() {

    uint16_t state = 0;

    // Read the state of each pin (assuming 16 pins)

    for (int pin = 0; pin < 4; pin++) {

        if (pcf8574_IN1.digitalRead(pin)) {

            state |= (1 << pin); // Set the bit for the active pin

        }

    }

    Serial.print("Input state: ");

    Serial.println(state, BIN); // Print the state of inputs in binary

    delay(500); // Delay 500ms

}

arduino ino file download:

.zip

2-digital-input.zip (Size: 879 bytes / Downloads: 306)
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: 199.52 KB / Downloads: 307)

[arduino code examples for B4]-01 Turn ON/OFF OUTPUT

Posted by: admin - 01-14-2026, 03:49 AM - Forum: B4 - No Replies

Code:
/*

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

 *

 * This program controls a 8-channel relay board via a PCF8574 I/O expander.

 * It sequentially turns on each relay and then turns them off in a loop.

 * 

 * Pin Definitions:

 * - SDA: GPIO 8

 * - SCL: GPIO 18

 * 

 * Delay Time:

 * - 200 milliseconds between switching relays

 */

#include <Wire.h>        // Include the Wire library for I2C communication

#include <PCF8574.h>     // Include the PCF8575 library to control the I/O expander

#define SDA 8            // Define the SDA pin

#define SCL 18           // Define the SCL pin

#define DELAY_TIME 200   // Define the delay time in milliseconds

// Set I2C address of the PCF8575 module

#define I2C_ADDRESS 0x24 // I2C address of the PCF8575 module

PCF8574 pcf8574_R1(I2C_ADDRESS); // Create a PCF8575 object with the specified I2C address

void setup() {

  // Initialize I2C communication

  Wire.begin(SDA, SCL); // SDA on GPIO 8, SCL on GPIO 18 (according to your board's configuration)

  // Initialize serial communication for debugging (optional)

  Serial.begin(115200);

  Serial.println("PCF8575 Relay Control: Starting...");

    pcf8574_R1.pinMode(P4, OUTPUT);

  pcf8574_R1.pinMode(P5, OUTPUT);

  pcf8574_R1.pinMode(P6, OUTPUT);

  pcf8574_R1.pinMode(P7, OUTPUT);

  // Initialize the PCF8575 module

  pcf8574_R1.begin();

  // Turn off all relays initially (set all pins HIGH)

  for (int i = 4; i < 8; i++) {

    pcf8574_R1.digitalWrite(i, HIGH); // Set all relays to OFF (assuming HIGH means OFF for relays)

  }

}

void loop() {

  // Sequentially turn on each relay

  for (int i = 4; i < 8; i++) {

    pcf8574_R1.digitalWrite(i, LOW);   // Turn on the relay at pin i (LOW means ON for the relay)

    delay(DELAY_TIME);          // Wait for DELAY_TIME milliseconds

  }

  // Sequentially turn off each relay

  for (int i = 4; i < 8; i++) {

    pcf8574_R1.digitalWrite(i, HIGH);  // Turn off the relay at pin i (HIGH means OFF for the relay)

    delay(DELAY_TIME);          // Wait for DELAY_TIME milliseconds

  }

}

arduino ino file download:

.zip

1-relay.zip (Size: 964 bytes / Downloads: 338)
BIN file (you can use esp32 download tool download to ESP32-S3 with address 0x0 then directly to use) download:

.zip

1-relay.ino.merged.zip (Size: 199.39 KB / Downloads: 315)

[arduino code examples for B4M]-01 Turn ON/OFF OUTPUT

Posted by: admin - 01-14-2026, 03:49 AM - Forum: B4M - No Replies

Code:
/*

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

 *

 * This program controls a 8-channel relay board via a PCF8574 I/O expander.

 * It sequentially turns on each relay and then turns them off in a loop.

 * 

 * Pin Definitions:

 * - SDA: GPIO 8

 * - SCL: GPIO 18

 * 

 * Delay Time:

 * - 200 milliseconds between switching relays

 */

#include <Wire.h>        // Include the Wire library for I2C communication

#include <PCF8574.h>     // Include the PCF8575 library to control the I/O expander

#define SDA 8            // Define the SDA pin

#define SCL 18           // Define the SCL pin

#define DELAY_TIME 200   // Define the delay time in milliseconds

// Set I2C address of the PCF8575 module

#define I2C_ADDRESS 0x24 // I2C address of the PCF8575 module

PCF8574 pcf8574_R1(I2C_ADDRESS); // Create a PCF8575 object with the specified I2C address

void setup() {

  // Initialize I2C communication

  Wire.begin(SDA, SCL); // SDA on GPIO 8, SCL on GPIO 18 (according to your board's configuration)

  // Initialize serial communication for debugging (optional)

  Serial.begin(115200);

  Serial.println("PCF8575 Relay Control: Starting...");

    pcf8574_R1.pinMode(P4, OUTPUT);

  pcf8574_R1.pinMode(P5, OUTPUT);

  pcf8574_R1.pinMode(P6, OUTPUT);

  pcf8574_R1.pinMode(P7, OUTPUT);

  // Initialize the PCF8575 module

  pcf8574_R1.begin();

  // Turn off all relays initially (set all pins HIGH)

  for (int i = 4; i < 8; i++) {

    pcf8574_R1.digitalWrite(i, HIGH); // Set all relays to OFF (assuming HIGH means OFF for relays)

  }

}

void loop() {

  // Sequentially turn on each relay

  for (int i = 4; i < 8; i++) {

    pcf8574_R1.digitalWrite(i, LOW);   // Turn on the relay at pin i (LOW means ON for the relay)

    delay(DELAY_TIME);          // Wait for DELAY_TIME milliseconds

  }

  // Sequentially turn off each relay

  for (int i = 4; i < 8; i++) {

    pcf8574_R1.digitalWrite(i, HIGH);  // Turn off the relay at pin i (HIGH means OFF for the relay)

    delay(DELAY_TIME);          // Wait for DELAY_TIME milliseconds

  }

}

arduino ino file download:

.zip

1-relay.zip (Size: 964 bytes / Downloads: 329)
BIN file (you can use esp32 download tool download to ESP32-S3 with address 0x0 then directly to use) download:

.zip

1-relay.ino.merged.zip (Size: 199.39 KB / Downloads: 317)

B4 ESPHome yaml for home assistant with tuya

Posted by: admin - 01-14-2026, 03:46 AM - Forum: B4 - No Replies

Code:
esphome:

  name: b4

  friendly_name: b4

  platformio_options:

    board_build.extra_flags:

      # WIFI_CONTROL_SELF_MODE = 0

      # WIFI_CONTROL_SELF_MODE = 1

      - "-DWIFI_CONTROL_SELF_MODE=1"

esp32:

  board: esp32-s3-devkitc-1

  framework:

    type: arduino

external_components:

  - source:

      type: git

      url: https://github.com/hzkincony/esphome-tuya-wifi-mcu

      ref: v1.3.0

# Enable logging

# logger: 

#   hardware_uart: USB_SERIAL_JTAG

# Enable Home Assistant API

api:

ethernet:

  type: W5500

  clk_pin: GPIO1

  mosi_pin: GPIO2

  miso_pin: GPIO41

  cs_pin: GPIO42

  interrupt_pin: GPIO43

  reset_pin: GPIO44

i2c:

   - id: bus_a

     sda: 8

     scl: 18

     scan: true

     frequency: 400kHz

pcf8574:

  - id: 'pcf8574_hub_out_1'  # for output channel 0-7| input channel 8-15   

    i2c_id: bus_a

    address: 0x24

uart:

  - id: uart_1    #RS485

    baud_rate: 9600

    debug:

      direction: BOTH

      dummy_receiver: true

      after:

        timeout: 10ms

    tx_pin: 38

    rx_pin: 39

  - id: tuya_mcu_uart

    tx_pin: GPIO15

    rx_pin: GPIO16

    baud_rate: 9600

tuya_wifi_mcu:

  # tuya mcu product id

  product_id: fotgrf8rowhk1nm3

  uart_id: tuya_mcu_uart

  wifi_reset_pin: 28

  wifi_led_pin: 16

switch:

  - platform: uart

    uart_id: uart_1

    name: "RS485 Button"

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

  - platform: gpio

    name: "b4-output01"

    id: "b4_output01"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 4

      mode: OUTPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-output1-tuya

    dp_id: 1

    # hide from homeassistant ui

    internal: true

    # bind other switch, sync state

    bind_switch_id: "b4_output01"

  - platform: gpio

    name: "b4-output02"

    id: "b4_output02"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 5

      mode: OUTPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-output2-tuya

    dp_id: 2

    # hide from homeassistant ui

    internal: true

    # bind other switch, sync state

    bind_switch_id: "b4_output02"

  - platform: gpio

    name: "b4-output03"

    id: "b4_output03"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 6

      mode: OUTPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-output3-tuya

    dp_id: 3

    # hide from homeassistant ui

    internal: true

    # bind other switch, sync state

    bind_switch_id: "b4_output03"

  - platform: gpio

    name: "b4-output04"

    id: "b4_output04"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 7

      mode: OUTPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-output4-tuya

    dp_id: 4

    # hide from homeassistant ui

    internal: true

    # bind other switch, sync state

    bind_switch_id: "b4_output04"

binary_sensor:

  - platform: gpio

    name: "b4-input01"

    id: "b4_input01"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 0

      mode: INPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-input1-tuya

    dp_id: 111

    bind_binary_sensor_id: b4_input01

    internal: true

  - platform: gpio

    name: "b4-input02"

    id: "b4_input02"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 1

      mode: INPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-input2-tuya

    dp_id: 112

    bind_binary_sensor_id: b4_input02

    internal: true

  - platform: gpio

    name: "b4-input03"

    id: "b4_input03"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 2

      mode: INPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-input3-tuya

    dp_id: 113

    bind_binary_sensor_id: b4_input03

    internal: true

  - platform: gpio

    name: "b4-input04"

    id: "b4_input04"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 3

      mode: INPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-input4-tuya

    dp_id: 114

    bind_binary_sensor_id: b4_input04

    internal: true

##pull-up resistance on PCB

  - platform: gpio

    name: "b8-W1-io47"

    pin: 

      number: 47

      inverted: true

  - platform: gpio

    name: "b8-W1-io48"

    pin: 

      number: 48

      inverted: true

  - platform: gpio

    name: "b8-W1-io17"

    pin: 

      number: 17

      inverted: true

  - platform: gpio

    name: "b8-W1-io40"

    pin: 

      number: 40

      inverted: true

## without resistance on PCB

  - platform: gpio

    name: "b8-13"

    pin: 

      number: 13

      inverted:  false

  - platform: gpio

    name: "b8-14"

    pin: 

      number: 14

      inverted:  false

  - platform: gpio

    name: "b8-21"

    pin: 

      number: 21

      inverted:  false

  - platform: gpio

    name: "b8-0"

    pin: 

      number: 0

      inverted:  false

ads1115:

  - address: 0x48

sensor:

  - platform: ads1115

    multiplexer: 'A0_GND'

    gain: 6.144

    resolution: 16_BITS

    name: "ADS1115 Channel A0-GND"

    update_interval: 5s

  - platform: ads1115

    multiplexer: 'A1_GND'

    gain: 6.144

    name: "ADS1115 Channel A1-GND"

    update_interval: 5s

  - platform: ads1115

    multiplexer: 'A2_GND'

    gain: 6.144

    name: "ADS1115 Channel A2-GND"

    update_interval: 5s

  - platform: ads1115

    multiplexer: 'A3_GND'

    gain: 6.144

    name: "ADS1115 Channel A3-GND"

    update_interval: 5s

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), "KinCony B4");

download yaml file:

.txt

B4-HA-Tuya.txt (Size: 5.63 KB / Downloads: 196)

B4M ESPHome yaml for home assistant with tuya

Posted by: admin - 01-14-2026, 03:46 AM - Forum: B4M - No Replies

Code:
esphome:

  name: b4

  friendly_name: b4

  platformio_options:

    board_build.extra_flags:

      # WIFI_CONTROL_SELF_MODE = 0

      # WIFI_CONTROL_SELF_MODE = 1

      - "-DWIFI_CONTROL_SELF_MODE=1"

esp32:

  board: esp32-s3-devkitc-1

  framework:

    type: arduino

external_components:

  - source:

      type: git

      url: https://github.com/hzkincony/esphome-tuya-wifi-mcu

      ref: v1.3.0

# Enable logging

# logger: 

#   hardware_uart: USB_SERIAL_JTAG

# Enable Home Assistant API

api:

ethernet:

  type: W5500

  clk_pin: GPIO1

  mosi_pin: GPIO2

  miso_pin: GPIO41

  cs_pin: GPIO42

  interrupt_pin: GPIO43

  reset_pin: GPIO44

i2c:

   - id: bus_a

     sda: 8

     scl: 18

     scan: true

     frequency: 400kHz

pcf8574:

  - id: 'pcf8574_hub_out_1'  # for output channel 0-7| input channel 8-15   

    i2c_id: bus_a

    address: 0x24

uart:

  - id: uart_1    #RS485

    baud_rate: 9600

    debug:

      direction: BOTH

      dummy_receiver: true

      after:

        timeout: 10ms

    tx_pin: 38

    rx_pin: 39

  - id: tuya_mcu_uart

    tx_pin: GPIO15

    rx_pin: GPIO16

    baud_rate: 9600

tuya_wifi_mcu:

  # tuya mcu product id

  product_id: fotgrf8rowhk1nm3

  uart_id: tuya_mcu_uart

  wifi_reset_pin: 28

  wifi_led_pin: 16

switch:

  - platform: uart

    uart_id: uart_1

    name: "RS485 Button"

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

  - platform: gpio

    name: "b4-output01"

    id: "b4_output01"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 4

      mode: OUTPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-output1-tuya

    dp_id: 1

    # hide from homeassistant ui

    internal: true

    # bind other switch, sync state

    bind_switch_id: "b4_output01"

  - platform: gpio

    name: "b4-output02"

    id: "b4_output02"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 5

      mode: OUTPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-output2-tuya

    dp_id: 2

    # hide from homeassistant ui

    internal: true

    # bind other switch, sync state

    bind_switch_id: "b4_output02"

  - platform: gpio

    name: "b4-output03"

    id: "b4_output03"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 6

      mode: OUTPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-output3-tuya

    dp_id: 3

    # hide from homeassistant ui

    internal: true

    # bind other switch, sync state

    bind_switch_id: "b4_output03"

  - platform: gpio

    name: "b4-output04"

    id: "b4_output04"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 7

      mode: OUTPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-output4-tuya

    dp_id: 4

    # hide from homeassistant ui

    internal: true

    # bind other switch, sync state

    bind_switch_id: "b4_output04"

binary_sensor:

  - platform: gpio

    name: "b4-input01"

    id: "b4_input01"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 0

      mode: INPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-input1-tuya

    dp_id: 111

    bind_binary_sensor_id: b4_input01

    internal: true

  - platform: gpio

    name: "b4-input02"

    id: "b4_input02"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 1

      mode: INPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-input2-tuya

    dp_id: 112

    bind_binary_sensor_id: b4_input02

    internal: true

  - platform: gpio

    name: "b4-input03"

    id: "b4_input03"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 2

      mode: INPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-input3-tuya

    dp_id: 113

    bind_binary_sensor_id: b4_input03

    internal: true

  - platform: gpio

    name: "b4-input04"

    id: "b4_input04"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 3

      mode: INPUT

      inverted: true

  - platform: tuya_wifi_mcu

    name: b4-input4-tuya

    dp_id: 114

    bind_binary_sensor_id: b4_input04

    internal: true

##pull-up resistance on PCB

  - platform: gpio

    name: "b8-W1-io47"

    pin: 

      number: 47

      inverted: true

  - platform: gpio

    name: "b8-W1-io48"

    pin: 

      number: 48

      inverted: true

  - platform: gpio

    name: "b8-W1-io17"

    pin: 

      number: 17

      inverted: true

  - platform: gpio

    name: "b8-W1-io40"

    pin: 

      number: 40

      inverted: true

## without resistance on PCB

  - platform: gpio

    name: "b8-13"

    pin: 

      number: 13

      inverted:  false

  - platform: gpio

    name: "b8-14"

    pin: 

      number: 14

      inverted:  false

  - platform: gpio

    name: "b8-21"

    pin: 

      number: 21

      inverted:  false

  - platform: gpio

    name: "b8-0"

    pin: 

      number: 0

      inverted:  false

ads1115:

  - address: 0x48

sensor:

  - platform: ads1115

    multiplexer: 'A0_GND'

    gain: 6.144

    resolution: 16_BITS

    name: "ADS1115 Channel A0-GND"

    update_interval: 5s

  - platform: ads1115

    multiplexer: 'A1_GND'

    gain: 6.144

    name: "ADS1115 Channel A1-GND"

    update_interval: 5s

  - platform: ads1115

    multiplexer: 'A2_GND'

    gain: 6.144

    name: "ADS1115 Channel A2-GND"

    update_interval: 5s

  - platform: ads1115

    multiplexer: 'A3_GND'

    gain: 6.144

    name: "ADS1115 Channel A3-GND"

    update_interval: 5s

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), "KinCony B4");

download yaml file:

.txt

B4-HA-Tuya.txt (Size: 5.63 KB / Downloads: 247)

B4 ESPHome yaml for home assistant without tuya

Posted by: admin - 01-14-2026, 03:45 AM - Forum: B4 - No Replies

Code:
esphome:

  name: b4

  friendly_name: b4

esp32:

  board: esp32-s3-devkitc-1

  framework:

    type: arduino

# Enable logging

logger: 

   hardware_uart: USB_SERIAL_JTAG

# Enable Home Assistant API

api:

ethernet:

  type: W5500

  clk_pin: GPIO1

  mosi_pin: GPIO2

  miso_pin: GPIO41

  cs_pin: GPIO42

  interrupt_pin: GPIO43

  reset_pin: GPIO44

i2c:

   - id: bus_a

     sda: 8

     scl: 18

     scan: true

     frequency: 400kHz

pcf8574:

  - id: 'pcf8574_hub_out_1'  # for output channel 0-7| input channel 8-15   

    i2c_id: bus_a

    address: 0x24

uart:

  - id: uart_1    #RS485

    baud_rate: 9600

    debug:

      direction: BOTH

      dummy_receiver: true

      after:

        timeout: 10ms

    tx_pin: 38

    rx_pin: 39

switch:

  - platform: uart

    uart_id: uart_1

    name: "RS485 Button"

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

  - platform: gpio

    name: "b4-output01"

    id: "b4_output01"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 4

      mode: OUTPUT

      inverted: true

  - platform: gpio

    name: "b4-output02"

    id: "b4_output02"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 5

      mode: OUTPUT

      inverted: true

  - platform: gpio

    name: "b4-output03"

    id: "b4_output03"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 6

      mode: OUTPUT

      inverted: true

  - platform: gpio

    name: "b4-output04"

    id: "b4_output04"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 7

      mode: OUTPUT

      inverted: true

binary_sensor:

  - platform: gpio

    name: "b4-input01"

    id: "b4_input01"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 0

      mode: INPUT

      inverted: true

  - platform: gpio

    name: "b4-input02"

    id: "b4_input02"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 1

      mode: INPUT

      inverted: true

  - platform: gpio

    name: "b4-input03"

    id: "b4_input03"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 2

      mode: INPUT

      inverted: true

  - platform: gpio

    name: "b4-input04"

    id: "b4_input04"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 3

      mode: INPUT

      inverted: true

##pull-up resistance on PCB

  - platform: gpio

    name: "b8-W1-io47"

    pin: 

      number: 47

      inverted: true

  - platform: gpio

    name: "b8-W1-io48"

    pin: 

      number: 48

      inverted: true

  - platform: gpio

    name: "b8-W1-io17"

    pin: 

      number: 17

      inverted: true

  - platform: gpio

    name: "b8-W1-io40"

    pin: 

      number: 40

      inverted: true

## without resistance on PCB

  - platform: gpio

    name: "b8-13"

    pin: 

      number: 13

      inverted:  false

  - platform: gpio

    name: "b8-14"

    pin: 

      number: 14

      inverted:  false

  - platform: gpio

    name: "b8-21"

    pin: 

      number: 21

      inverted:  false

  - platform: gpio

    name: "b8-0"

    pin: 

      number: 0

      inverted:  false

ads1115:

  - address: 0x48

sensor:

  - platform: ads1115

    multiplexer: 'A0_GND'

    gain: 6.144

    resolution: 16_BITS

    name: "ADS1115 Channel A0-GND"

    update_interval: 5s

  - platform: ads1115

    multiplexer: 'A1_GND'

    gain: 6.144

    name: "ADS1115 Channel A1-GND"

    update_interval: 5s

  - platform: ads1115

    multiplexer: 'A2_GND'

    gain: 6.144

    name: "ADS1115 Channel A2-GND"

    update_interval: 5s

  - platform: ads1115

    multiplexer: 'A3_GND'

    gain: 6.144

    name: "ADS1115 Channel A3-GND"

    update_interval: 5s

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), "KinCony B4");

download yaml file:

.txt

B4-HA-Without-Tuya.txt (Size: 3.87 KB / Downloads: 200)

B4M ESPHome yaml for home assistant without tuya

Posted by: admin - 01-14-2026, 03:45 AM - Forum: B4M - No Replies

Code:
esphome:

  name: b4

  friendly_name: b4

esp32:

  board: esp32-s3-devkitc-1

  framework:

    type: arduino

# Enable logging

logger: 

   hardware_uart: USB_SERIAL_JTAG

# Enable Home Assistant API

api:

ethernet:

  type: W5500

  clk_pin: GPIO1

  mosi_pin: GPIO2

  miso_pin: GPIO41

  cs_pin: GPIO42

  interrupt_pin: GPIO43

  reset_pin: GPIO44

i2c:

   - id: bus_a

     sda: 8

     scl: 18

     scan: true

     frequency: 400kHz

pcf8574:

  - id: 'pcf8574_hub_out_1'  # for output channel 0-7| input channel 8-15   

    i2c_id: bus_a

    address: 0x24

uart:

  - id: uart_1    #RS485

    baud_rate: 9600

    debug:

      direction: BOTH

      dummy_receiver: true

      after:

        timeout: 10ms

    tx_pin: 38

    rx_pin: 39

switch:

  - platform: uart

    uart_id: uart_1

    name: "RS485 Button"

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

  - platform: gpio

    name: "b4-output01"

    id: "b4_output01"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 4

      mode: OUTPUT

      inverted: true

  - platform: gpio

    name: "b4-output02"

    id: "b4_output02"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 5

      mode: OUTPUT

      inverted: true

  - platform: gpio

    name: "b4-output03"

    id: "b4_output03"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 6

      mode: OUTPUT

      inverted: true

  - platform: gpio

    name: "b4-output04"

    id: "b4_output04"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 7

      mode: OUTPUT

      inverted: true

binary_sensor:

  - platform: gpio

    name: "b4-input01"

    id: "b4_input01"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 0

      mode: INPUT

      inverted: true

  - platform: gpio

    name: "b4-input02"

    id: "b4_input02"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 1

      mode: INPUT

      inverted: true

  - platform: gpio

    name: "b4-input03"

    id: "b4_input03"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 2

      mode: INPUT

      inverted: true

  - platform: gpio

    name: "b4-input04"

    id: "b4_input04"

    pin:

      pcf8574: pcf8574_hub_out_1

      number: 3

      mode: INPUT

      inverted: true

##pull-up resistance on PCB

  - platform: gpio

    name: "b8-W1-io47"

    pin: 

      number: 47

      inverted: true

  - platform: gpio

    name: "b8-W1-io48"

    pin: 

      number: 48

      inverted: true

  - platform: gpio

    name: "b8-W1-io17"

    pin: 

      number: 17

      inverted: true

  - platform: gpio

    name: "b8-W1-io40"

    pin: 

      number: 40

      inverted: true

## without resistance on PCB

  - platform: gpio

    name: "b8-13"

    pin: 

      number: 13

      inverted:  false

  - platform: gpio

    name: "b8-14"

    pin: 

      number: 14

      inverted:  false

  - platform: gpio

    name: "b8-21"

    pin: 

      number: 21

      inverted:  false

  - platform: gpio

    name: "b8-0"

    pin: 

      number: 0

      inverted:  false

ads1115:

  - address: 0x48

sensor:

  - platform: ads1115

    multiplexer: 'A0_GND'

    gain: 6.144

    resolution: 16_BITS

    name: "ADS1115 Channel A0-GND"

    update_interval: 5s

  - platform: ads1115

    multiplexer: 'A1_GND'

    gain: 6.144

    name: "ADS1115 Channel A1-GND"

    update_interval: 5s

  - platform: ads1115

    multiplexer: 'A2_GND'

    gain: 6.144

    name: "ADS1115 Channel A2-GND"

    update_interval: 5s

  - platform: ads1115

    multiplexer: 'A3_GND'

    gain: 6.144

    name: "ADS1115 Channel A3-GND"

    update_interval: 5s

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), "KinCony B4");

download yaml file:

.txt

B4-HA-Without-Tuya.txt (Size: 3.87 KB / Downloads: 195)

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