Difference between revisions of "Microduino Ultrasonic ranging-OLED display distance"

Latest revision as of 10:25, 28 September 2016

Language:	English • 中文

This tutorial will teach you using the ultrasonic sensor to measure distance and displays on Microduino OLED.

Refer to UltrasonicOLED

The following is the distance measurement algorithm:

digitalWrite(TrigPin, LOW); //Send a pulse to TrigPin

delayMicroseconds(2);

digitalWrite(TrigPin, HIGH);

delayMicroseconds(10);

digitalWrite(TrigPin, LOW);

cm = pulseIn(EchoPin, HIGH) / 58.0; //Convert the timer to distance (cm) (The propagation of sound speed is 340 m/s)

cm = (int(cm * 100.0)) / 100.0; //Keep two decimal places

Step 1: Stack all the required Microduino module, as follows:

Step 2: Compile the program and download it.

Step 3: Run program, put a object in front of sensor, then move it, observe the OLED's value.

OLED will display the distance between sensor and object.

@@ Line 43: / Line 43: @@
 ==Debug==
-Step 1：Stack all the required Microduino module, as follows:
+Step 1: Stack all the required Microduino module, as follows:
 [[File:Microduino超声波OLED显示连接图.jpg|600px|center|thumb]]
-Step 2：Compile the program and download it.
+Step 2: Compile the program and download it.
-Step 3：Run program, put a object in front of sensor, then move it, observe the OLED's value.
+Step 3: Run program, put a object in front of sensor, then move it, observe the OLED's value.
 [[File:Microduino超声波OLED显示测距图.jpg|600px|center|thumb]]