Lesson 53

Sensors/platformio.ini

@@ -12,8 +12,8 @@
 platform = atmelavr
 board = uno
 framework = arduino
-lib_deps =
-  # RECOMMENDED
-  # Accept new functionality in a backwards compatible manner and patches
-  adafruit/DHT sensor library @ ^1.4.6
-  arduino-libraries/LiquidCrystal @ ^1.0.7
+; lib_deps =
+;   # RECOMMENDED
+;   # Accept new functionality in a backwards compatible manner and patches
+;   adafruit/DHT sensor library @ ^1.4.6
+;   arduino-libraries/LiquidCrystal @ ^1.0.7

Sensors/src/main.cpp

@@ -3,13 +3,26 @@
 
 #include <Arduino.h>
 
+int trigPin = 12;
+int echoPin = 11;
+int pingTravleTime;
+
 void setup() {
   // put your setup code here, to run once:
   Serial.begin(9600);
-
-
+  pinMode(trigPin, OUTPUT);
+  pinMode(echoPin, INPUT);
 }
 
 void loop() {
   // put your main code here, to run repeatedly:
+  digitalWrite(trigPin, LOW);
+  delayMicroseconds(10);
+  digitalWrite(trigPin, HIGH);
+  delayMicroseconds(10);
+  digitalWrite(trigPin, LOW);
+  pingTravleTime = pulseIn(echoPin, HIGH);
+  delay(25);
+  Serial.print("Ping Time: ");
+  Serial.println(pingTravleTime);
 }