Design with MKE-S01 Ultrasonic Distance Sensor in Cirkit DesignerThe MKE-S01 Ultrasonic Distance Sensor is an electronic device that measures the distance to an object by emitting ultrasonic waves and calculating the time it takes for the waves to reflect back from the object. This sensor is widely used in robotics, automotive parking sensors, obstacle avoidance systems, and various automation applications due to its non-contact measurement capability and high accuracy.
This circuit is a distance measurement and communication system using an Arduino UNO, an ultrasonic sensor, an OLED display, and a SIM900A module. The ultrasonic sensor measures the distance to an object, which is then displayed on the OLED screen and transmitted via the SIM900A module. The system is powered by a 18650 Li-ion battery.
Open Project in Cirkit Designer
This circuit features an ESP32 microcontroller connected to two MKE-S01 ultrasonic distance sensors and four LEDs (two red, two green). The ESP32's GPIO pins are used to trigger the ultrasonic sensors and to receive echo signals, which allows it to measure distances. Additionally, the GPIO pins control the LEDs, which could be used to indicate status or distance thresholds.
Open Project in Cirkit Designer
This circuit consists of an HC-SR04 Ultrasonic Distance Sensor interfaced with an Arduino UNO for measuring distances. The Arduino is programmed to trigger the sensor and read the echo signal to determine the distance to an object. A buzzer is also connected to the Arduino and can be used to provide audible feedback based on the distance measurements.
Open Project in Cirkit Designer
This circuit uses an Arduino UNO to measure the distance of objects using an HC-SR04 ultrasonic sensor and displays the distance on a 16x2 I2C LCD. If an object is detected within 10 cm, a piezo speaker emits a warning sound.
Open Project in Cirkit Designer| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC | Power supply (5V DC) |
| 2 | Trig | Trigger input (TTL pulse) |
| 3 | Echo | Echo output (TTL level signal) |
| 4 | GND | Ground |
// Define sensor pins
const int trigPin = 9;
const int echoPin = 10;
void setup() {
// Initialize serial communication
Serial.begin(9600);
// Define pin modes
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
}
void loop() {
// Clear the trigPin by setting it LOW
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
// Set the trigPin HIGH for 10 microseconds to send the ultrasonic pulse
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
// Read the echoPin; pulseIn returns the duration in microseconds
long duration = pulseIn(echoPin, HIGH);
// Calculate the distance (in cm) based on the speed of sound (34300 cm/s)
long distance = duration * 0.0343 / 2;
// Print the distance to the Serial Monitor
Serial.print("Distance: ");
Serial.print(distance);
Serial.println(" cm");
// Delay between measurements
delay(1000);
}
Serial.print function to debug and monitor the duration and distance values.Q: Can the sensor measure distances beyond 400 cm? A: The sensor is designed to measure up to 400 cm. Measurements beyond this range may be unreliable.
Q: Is the sensor waterproof? A: The MKE-S01 is not typically waterproof. Special care should be taken to avoid exposure to moisture.
Q: How can I increase the measurement angle of the sensor? A: The measurement angle is fixed due to the design of the sensor. To cover a wider area, use multiple sensors or mechanically rotate the sensor.
Q: Can the sensor be used with a 3.3V system? A: The sensor is rated for 5V operation. Using it with a 3.3V system may result in improper functioning. Use a level shifter if necessary.