Design with MKE-S15 DS18B20 Waterproof Temperature Sensor in Cirkit DesignerThe MKE-S15 DS18B20 Waterproof Temperature Sensor is a precision digital thermometer that provides temperature readings which indicate the temperature of the device. Encased in a stainless steel housing, this sensor is waterproof and ideal for measuring temperature in liquids and harsh environments. It uses the DS18B20 sensor chip and communicates over a 1-Wire bus that by design requires only one data line (and ground) for communication with a central microprocessor.
This circuit uses an Arduino UNO to read temperature data from a DS18B20 waterproof temperature sensor and monitor voltage and current using an INA219 sensor. The Arduino is powered by a 3.7V battery and communicates with the INA219 via I2C, while the DS18B20 sensor is connected to a digital pin with a pull-up resistor.
Open Project in Cirkit Designer
This circuit features an ESP8266 NodeMCU microcontroller connected to a DS18B20 temperature sensor. The sensor's data line (DQ) is connected to the D2 pin of the NodeMCU through a 4.7k ohm pull-up resistor, which is a common configuration for one-wire temperature sensors. The sensor is powered by the 3.3V supply from the NodeMCU, and both the sensor and the NodeMCU share a common ground.
Open Project in Cirkit Designer
This circuit is a smart water bottle monitoring system that uses an Arduino UNO to read data from various sensors, including a temperature sensor, TDS sensor, ultrasonic sensor, and reed switch. The data is displayed on an OLED screen and transmitted wirelessly via an ESP8266 module, allowing remote monitoring of water quality, temperature, level, and lid status.
Open Project in Cirkit Designer
This circuit is a weather monitoring system that uses an ESP32 microcontroller to read temperature data from a DS18B20 sensor and pressure data from a BME280 sensor. The data is displayed on a 20x4 I2C LCD panel, and the system can communicate via a SIM800L module. A piezo buzzer is included for audible alerts, and the entire system is powered by a 5V battery.
Open Project in Cirkit Designer| Pin Number | Description | Color |
|---|---|---|
| 1 | Ground (GND) | Black |
| 2 | Data (DQ) | Yellow |
| 3 | Power Supply (VDD) | Red |
#include <OneWire.h>
#include <DallasTemperature.h>
// Data wire is plugged into pin 2 on the Arduino
#define ONE_WIRE_BUS 2
// Setup a oneWire instance to communicate with any OneWire devices
OneWire oneWire(ONE_WIRE_BUS);
// Pass our oneWire reference to Dallas Temperature sensor
DallasTemperature sensors(&oneWire);
void setup(void)
{
// Start serial communication for debugging purposes
Serial.begin(9600);
// Start up the library
sensors.begin();
}
void loop(void)
{
// Call sensors.requestTemperatures() to issue a global temperature
// request to all devices on the bus
sensors.requestTemperatures();
// Fetch the temperature in degrees Celsius for device index 0
float tempC = sensors.getTempCByIndex(0);
// Check if reading was successful
if(tempC != DEVICE_DISCONNECTED_C)
{
Serial.print("Temperature: ");
Serial.print(tempC);
Serial.println("°C");
}
else
{
Serial.println("Error: Could not read temperature data");
}
delay(1000); // Wait 1 second before next reading
}
Serial.begin setting in your code.OneWire library's search function to confirm device presence on the bus.Q: Can I connect multiple DS18B20 sensors to the same microcontroller? A: Yes, the DS18B20 supports multiple devices on the same 1-Wire bus.
Q: How long can the sensor cable be? A: The cable length can be up to 100 meters, but it may require a lower pull-up resistor value for longer distances.
Q: Is calibration required for this sensor? A: The DS18B20 is factory-calibrated and does not typically require additional calibration.