Initial import of support files for all Digistump boards - Digispark, Pro, DigiX - including libraries, examples, tools, and other support files for the Arduino IDE

hardware/digistump/avr/libraries/Digispark_Examples/Expander/Expander.ino

@@ -0,0 +1,33 @@
+#include <TinyWireM.h>
+#define expander 0x20
+
+byte expanderStatus = B11111111; //all off
+
+void setup()
+{
+    TinyWireM.begin();
+}
+
+void loop()
+{
+    expanderWrite(0,HIGH);
+    delay(1000);
+    expanderWrite(0,LOW);
+    delay(1000);
+}
+
+
+void expanderWrite(byte pinNumber, boolean state){
+  if(state == HIGH)
+    expanderStatus &= ~(1 << pinNumber);
+  else
+    expanderStatus |= (1 << pinNumber); 
+    
+  expanderWrite(expanderStatus);
+}
+
+void expanderWrite(byte _data ) {
+  TinyWireM.beginTransmission(expander);
+  TinyWireM.send(_data);
+  TinyWireM.endTransmission();
+}