First init.

libraries/Adafruit_seesaw_Library/examples/Crickit/signal/test_signal/test_signal.ino

@@ -0,0 +1,40 @@
+#include "Adafruit_Crickit.h"
+
+Adafruit_Crickit crickit;
+
+#define BUTTON_1 CRICKIT_SIGNAL1
+#define BUTTON_2 CRICKIT_SIGNAL2
+#define LED_1 CRICKIT_SIGNAL3
+#define LED_2 CRICKIT_SIGNAL4
+
+void setup() {
+  Serial.begin(9600);
+  
+  if(!crickit.begin()){
+    Serial.println("ERROR!");
+    while(1) delay(1);
+  }
+  else Serial.println("Crickit started");
+
+  //Two buttons are pullups, connect to ground to activate
+  crickit.pinMode(BUTTON_1, INPUT_PULLUP);
+  crickit.pinMode(BUTTON_2, INPUT_PULLUP);
+
+  // Two LEDs are outputs, on by default
+  crickit.pinMode(LED_1, OUTPUT);
+  crickit.pinMode(LED_2, OUTPUT);
+  crickit.digitalWrite(LED_1, HIGH);
+  crickit.digitalWrite(LED_2, HIGH);
+}
+
+void loop() {
+  if(!crickit.digitalRead(BUTTON_1))
+    crickit.digitalWrite(LED_1, HIGH);
+  else
+    crickit.digitalWrite(LED_1, LOW);
+
+  if(!crickit.digitalRead(BUTTON_2))
+    crickit.digitalWrite(LED_2, HIGH);
+  else
+    crickit.digitalWrite(LED_2, LOW);
+}