diff --git a/Portable_Trellis_Soundboard/TrellisSound/TrellisSound.ino b/Portable_Trellis_Soundboard/TrellisSound/TrellisSound.ino
new file mode 100644
index 000000000..fe4aad785
--- /dev/null
+++ b/Portable_Trellis_Soundboard/TrellisSound/TrellisSound.ino
@@ -0,0 +1,149 @@
+#include <Wire.h>
+#include "Adafruit_Trellis.h"
+#include <SoftwareSerial.h>
+#include "Adafruit_Soundboard.h"
+ 
+/************ sound board setup ***********/
+// Choose any two pins that can be used with SoftwareSerial to RX & TX
+#define SFX_TX 5
+#define SFX_RX 6
+// Connect to the RST pin on the Sound Board
+#define SFX_RST 4
+ 
+#define SFX_ACT 1 // the 'ACT'ivity LED, to tell us if we're still playing
+ 
+// You can also monitor the ACT pin for when audio is playing!
+// we'll be using software serial
+SoftwareSerial ss = SoftwareSerial(SFX_TX, SFX_RX);
+// pass the software serial to Adafruit_soundboard, the second
+// argument is the debug port (not used really) and the third 
+// arg is the reset pin
+Adafruit_Soundboard sfx = Adafruit_Soundboard(&ss, NULL, SFX_RST);
+ 
+/************ Trellis setup ***********/
+ 
+Adafruit_Trellis matrix0 = Adafruit_Trellis();
+Adafruit_TrellisSet trellis =  Adafruit_TrellisSet(&matrix0);
+ 
+// set to however many you're working with here, up to 8
+#define NUMTRELLIS 1
+#define numKeys (NUMTRELLIS * 16)
+ 
+// Connect Trellis Vin to 5V and Ground to ground.
+// Connect the INT wire to pin #A2 (can change later!)
+#define INTPIN A2
+// Connect I2C SDA pin to your Arduino SDA line
+// Connect I2C SCL pin to your Arduino SCL line
+ 
+ 
+char PadToTrack[numKeys][12] = {"T00RAND0WAV",
+                                "T00RAND1WAV",
+                                "T00RAND2WAV",
+                                "T00RAND3WAV",
+                                "T10HOLDLWAV",
+                               
+};       
+ 
+/************ main setup ***********/
+ 
+void setup() {
+  Serial.begin(115200);
+  Serial.println("Trellis Demo");
+ 
+  // INT pin requires a pullup
+  pinMode(INTPIN, INPUT);
+  digitalWrite(INTPIN, HIGH);
+  // ACT LED
+  pinMode(SFX_ACT, INPUT);
+  digitalWrite(SFX_ACT, HIGH); //pullup
+  
+  // begin() with the addresses of each panel in order
+  trellis.begin(0x70);  // only one
+
+  // light up all the LEDs in order
+  for (uint8_t i=0; i<numKeys; i++) {
+    trellis.setLED(i);
+    trellis.writeDisplay();    
+    delay(50);
+  }
+  // then turn them off
+  for (uint8_t i=0; i<numKeys; i++) {
+    trellis.clrLED(i);
+    trellis.writeDisplay();    
+    delay(50);
+  }
+ 
+  // softwareserial at 9600 baud
+  ss.begin(9600);
+ 
+  if (!sfx.reset()) {
+    Serial.println("SFX not found");
+    while (1);
+  }
+  Serial.println("SFX board found");
+ 
+  uint8_t files = sfx.listFiles();
+ 
+  Serial.println("File Listing");
+  Serial.println("========================");
+  Serial.println();
+  Serial.print("Found "); Serial.print(files); Serial.println(" Files");
+  for (uint8_t f=0; f<files; f++) {
+    Serial.print(f); 
+    Serial.print("\tname: "); Serial.print(sfx.fileName(f));
+    Serial.print("\tsize: "); Serial.println(sfx.fileSize(f));
+  }
+  Serial.println("========================");  
+  
+  trellis.clear();
+  trellis.writeDisplay();
+}
+ 
+int currentPlaying = -1;
+ 
+void loop() {
+  delay(30); // 30ms delay is required, dont remove me!
+  
+  if (digitalRead(SFX_ACT) && (currentPlaying != -1)) {
+     // *not* playing anything according to ACT lite
+     trellis.clear();
+     trellis.writeDisplay();
+     currentPlaying = -1;
+  }
+  
+  // If a button was just pressed or released...
+  if (trellis.readSwitches()) {
+    // go through every button
+    for (uint8_t i=0; i<numKeys; i++) {
+       // if it was pressed, turn it on
+       if (trellis.isKeyPressed(i) && (i != currentPlaying)) {
+          Serial.print("v"); Serial.println(i);
+    
+          trellis.clear();
+          
+//          if (! digitalRead(SFX_ACT)) {
+//            Serial.println("stop..."); // check ACT lite first?
+//            if (! sfx.stop() ) {
+//                Serial.println("Failed to stop");
+//            }
+//          }
+ 
+          // play!         
+          char * filename = PadToTrack[i];
+          int ret = sfx.playTrack(filename);
+          Serial.print("Playing "); Serial.println(filename);
+          
+          if (! ret) {
+            Serial.println("Failed to play track?");
+          } else {
+            trellis.setLED(i);
+          }
+          trellis.writeDisplay();
+          
+          delay(25);  // give it a chance to start playing
+          currentPlaying = i;
+          break;
+      }
+    }
+  }
+}