ESP32 KY-053 Analog Digital Converter Module

🛠️ KY-053 Analog Digital Converter Module Troubleshooting

This guide outlines a systematic approach to troubleshoot and resolve common problems with the . Start by confirming that the hardware connections are correct, as wiring mistakes are the most frequent cause of issues. If you are sure the connections are correct, follow the below steps to debug common issues.

❌ Module Not Detected

⚡ Incorrect Voltage Readings

💻 Code Examples

Below you can find code examples of KY-053 Analog Digital Converter Module with ESP32 in several frameworks:

• Arduino IDE
• ESP-IDF
• ESPHome
• PlatformIO
• MicroPython

If you encounter issues while using the KY-053 Analog Digital Converter Module, check the Common Issues Troubleshooting Guide.

ESP32 KY-053 Arduino IDE Code Example

Example in Arduino IDE

Fill in your main Arduino IDE sketch file with the following code to use the KY-053 Analog Digital Converter Module:

#include <Wire.h>
#include <Adafruit_ADS1X15.h>

Adafruit_ADS1115 ads;

void setup() {
    Serial.begin(9600);
    ads.setGain(GAIN_TWOTHIRDS); // 2/3x gain ±6.144V 1 bit = 0.1875mV
    if (!ads.begin()) {
        Serial.println("Failed to initialize KY-053 ADS1115!");
        while (1);
    }
}

void loop() {
    int16_t adc0, adc1, adc2, adc3;
    adc0 = ads.readADC_SingleEnded(0);
    adc1 = ads.readADC_SingleEnded(1);
    adc2 = ads.readADC_SingleEnded(2);
    adc3 = ads.readADC_SingleEnded(3);

    Serial.print("AIN0: "); Serial.println(adc0);
    Serial.print("AIN1: "); Serial.println(adc1);
    Serial.print("AIN2: "); Serial.println(adc2);
    Serial.print("AIN3: "); Serial.println(adc3);
    Serial.println("----------------");
    delay(1000);
}

This Arduino code initializes the KY-053 ADC module using the ADS1115 library. It sets the gain to GAIN_TWOTHIRDS, allowing a maximum input voltage range of ±6.144V. The code continuously reads the values from all four analog input channels and prints them to the serial monitor.

Connect your ESP32 to your computer via a USB cable, Ensure the correct Board and Port are selected under Tools, Click the "Upload" button in the Arduino IDE to compile and upload the code to your ESP32.

ESP32 KY-053 ESP-IDF Code Example

Example in Espressif IoT Framework (ESP-IDF)

If you're using ESP-IDF to work with the KY-053 Analog Digital Converter Module, here's how you can set it up and read data from the sensor. Fill in this code in the main ESP-IDF file:

#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/i2c.h"
#include "ads1115.h"

#define I2C_MASTER_SCL_IO 22
#define I2C_MASTER_SDA_IO 21
#define I2C_MASTER_NUM I2C_NUM_0
#define I2C_MASTER_FREQ_HZ 100000

void app_main() {
    printf("Initializing KY-053 ADC module...\n");
    ads1115_t adc;
    ads1115_init(&adc, I2C_MASTER_NUM, 0x48, I2C_MASTER_SDA_IO, I2C_MASTER_SCL_IO);

    while (1) {
        int16_t adc_values[4];
        for (int i = 0; i < 4; i++) {
            adc_values[i] = ads1115_read(&adc, i);
            printf("AIN%d: %d\n", i, adc_values[i]);
        }
        vTaskDelay(pdMS_TO_TICKS(1000));
    }
}

This ESP-IDF code initializes the KY-053 ADC module (ADS1115) using the I2C interface on GPIO21 (SDA) and GPIO22 (SCL). It continuously reads all four analog channels and prints the values to the console every second.

Update the I2C pins (I2C_MASTER_SDA_IO and I2C_MASTER_SCL_IO) to match your ESP32 hardware setup, Use idf.py build to compile the project, Use idf.py flash to upload the code to your ESP32.

ESP32 KY-053 ESPHome Code Example

Example in ESPHome (Home Assistant)

Fill in this configuration in your ESPHome YAML configuration file (example.yml) to integrate the KY-053 Analog Digital Converter Module

sensor:
  - platform: ads1115
    multiplexer: 'A0_GND'
    gain: 6.144
    name: "KY-053 ADC Channel 0"
    update_interval: 1s
  - platform: ads1115
    multiplexer: 'A1_GND'
    gain: 6.144
    name: "KY-053 ADC Channel 1"
    update_interval: 1s
  - platform: ads1115
    multiplexer: 'A2_GND'
    gain: 6.144
    name: "KY-053 ADC Channel 2"
    update_interval: 1s
  - platform: ads1115
    multiplexer: 'A3_GND'
    gain: 6.144
    name: "KY-053 ADC Channel 3"
    update_interval: 1s

This ESPHome configuration sets up the KY-053 ADC module (ADS1115) to read all four analog channels. Each channel is configured with a gain of 6.144V, and the values are updated every second.

Upload this code to your ESP32 using the ESPHome dashboard or the esphome run command.

ESP32 KY-053 PlatformIO Code Example

Example in PlatformIO Framework

For PlatformIO, make sure to configure the platformio.ini file with the appropriate environment and libraries, and then proceed with the code.

Configure platformio.ini

First, your platformio.ini should look like below. You might need to include some libraries as shown. Make sure to change the board to your ESP32:

[env:esp32]
platform = espressif32
board = esp32dev
framework = arduino
lib_deps =
    adafruit/Adafruit ADS1X15

ESP32 KY-053 PlatformIO Example Code

Write this code in your PlatformIO project under the src/main.cpp file to use the KY-053 Analog Digital Converter Module:

#include <Arduino.h>
#include <Wire.h>
#include <Adafruit_ADS1X15.h>

Adafruit_ADS1115 ads;

void setup() {
    Serial.begin(115200);
    ads.setGain(GAIN_TWOTHIRDS);
    if (!ads.begin()) {
        Serial.println("Failed to initialize KY-053 ADS1115!");
        while (1);
    }
}

void loop() {
    int16_t values[4];
    for (int i = 0; i < 4; i++) {
        values[i] = ads.readADC_SingleEnded(i);
        Serial.printf("AIN%d: %d\n", i, values[i]);
    }
    delay(1000);
}

This PlatformIO code sets up the KY-053 ADC module (ADS1115) using the I2C interface. It continuously reads and prints the values from all four analog input channels every second.

Upload the code to your ESP32 using the PlatformIO "Upload" button in your IDE or the pio run --target upload command.

ESP32 KY-053 MicroPython Code Example

Example in Micro Python Framework

Fill in this script in your MicroPython main.py file (main.py) to integrate the KY-053 Analog Digital Converter Module with your ESP32.

import machine
import time
from ads1x15 import ADS1115

i2c = machine.I2C(0, scl=machine.Pin(22), sda=machine.Pin(21))
adc = ADS1115(i2c, address=0x48)

while True:
    for i in range(4):
        value = adc.read(i)
        print(f"AIN{i}: {value}")
    time.sleep(1)

This MicroPython script configures the KY-053 ADC module (ADS1115) using the I2C interface. It continuously reads all four analog channels and prints the values every second.

Upload this code to your ESP32 using a MicroPython-compatible IDE, such as Thonny, uPyCraft, or tools like ampy.