Design with MKE-S05 NTC Temperature Sensor in Cirkit DesignerThe MKE-S05 is a Negative Temperature Coefficient (NTC) thermistor used for precise temperature measurement. Its resistance decreases as the temperature increases, which makes it ideal for a wide range of applications including consumer electronics, automotive, and industrial systems where monitoring or controlling temperature is critical.
This circuit is a multi-sensor data acquisition system that uses a Nucleo WB55RG microcontroller to interface with a digital temperature sensor (TMP102), a pulse oximeter and heart-rate sensor (MAX30102), and a 0.96" OLED display via I2C. Additionally, it includes a Sim800l module for GSM communication, powered by a 3.7V LiPo battery.
Open Project in Cirkit Designer
This circuit is a temperature monitoring and control system using an Arduino UNO. It includes an NTC thermistor for temperature sensing, pushbuttons for user input, an I2C module for communication, and a fan controlled by a MOSFET. The system also features a buzzer for alerts and an LCD for displaying information.
Open Project in Cirkit Designer
This circuit is a temperature monitoring system that uses an Arduino UNO to read temperature data from an LM35 sensor, display the data on an LED dot display, and transmit the data via an HC-05 Bluetooth module. Additionally, it includes a DS1307 RTC module for timekeeping.
Open Project in Cirkit Designer
This circuit is an environmental monitoring system using an Arduino UNO, which reads data from an NTC temperature sensor, an LDR, and an MQ135 gas sensor. The data is processed and sent to a remote server via an ESP8266 WiFi module, and a buzzer is activated if certain thresholds are exceeded.
Open Project in Cirkit Designer| Pin Number | Description |
|---|---|
| 1 | NTC Thermistor Lead |
| 2 | NTC Thermistor Lead |
Note: The MKE-S05 NTC sensor is a two-terminal device, and the leads are non-polarized, meaning they can be connected in any orientation.
To use the MKE-S05 NTC temperature sensor in a circuit, it is typically connected in series with a fixed resistor to form a voltage divider. The voltage across the fixed resistor is then measured by an analog-to-digital converter (ADC) to determine the temperature.
Vcc ----[ R_fixed ]----|----[ NTC_Sensor ]---- GND
|
ADC
Q: Can the sensor be used to measure liquid temperatures?
Q: What is the typical response time of the sensor?
Below is an example of how to connect the MKE-S05 NTC temperature sensor to an Arduino UNO and read the temperature.
// Define the analog pin connected to the sensor
const int analogPin = A0;
// Define the value of the fixed resistor in the voltage divider
const float R_fixed = 10000.0; // 10k ohm resistor
// Define the nominal resistance and temperature
const float R_nominal = 5000.0; // 5k ohm at 25 degrees C
const float T_nominal = 25.0 + 273.15; // 25 degrees C in Kelvin
// Define the B-value of the thermistor
const float B_value = 3950.0; // B-value in Kelvin
void setup() {
Serial.begin(9600);
}
void loop() {
int analogValue = analogRead(analogPin);
float voltage = (analogValue / 1023.0) * 5.0; // Convert to voltage
float R_sensor = R_fixed * (5.0 / voltage - 1.0); // Calculate sensor resistance
float temperatureK = B_value / log(R_sensor / R_nominal); // Calculate temperature in Kelvin
float temperatureC = temperatureK - 273.15; // Convert to Celsius
// Print the temperature to the Serial Monitor
Serial.print("Temperature: ");
Serial.print(temperatureC);
Serial.println(" C");
delay(1000); // Wait for 1 second before the next reading
}
Note: The code above assumes a 5V supply voltage for the Arduino. If using a different voltage, adjust the voltage calculation accordingly.
Remember to wrap the sensor in a waterproof material if it is to be used in a wet environment, and always ensure that the sensor is not subjected to voltages or currents that exceed its specifications.