Add exercise 2 and 3.

1 files changed, 16 insertions, 0 deletions

diff --git a/led-dim/led-dim.ino b/led-dim/led-dim.ino
new file mode 100644
index 0000000..fe41a53
--- /dev/null
+++ b/led-dim/led-dim.ino
@@ -0,0 +1,16 @@
+const int kLed = 10;
+const int kSensor = A0;
+
+void setup() {
+  pinMode(kSensor, INPUT);
+  pinMode(kLed, OUTPUT);
+}
+
+void loop() {
+  int value = analogRead(kSensor);
+  digitalWrite(kLed, HIGH);
+  delay(value);
+  digitalWrite(kLed, LOW);
+  delay(value);
+  printf("%s\n", value);
+}