diff --git a/lib/index.js b/lib/index.js
index feda0b5..ae6f1bd 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -153,6 +153,8 @@ const SERVO_FREQUENCY = 50;
 const SERVO_MIN = 0.03;
 const SERVO_MAX = 0.12;
 
+const ADC_RESOLUTION = 4096;
+
 
 /**
  * ToPinIndex Return the board-wide index of a Pin for a given Pin name, Number, or Index
@@ -283,7 +285,7 @@ Port.CMD = {
   STOP: 0x14,
   ANALOG_READ: 0x18,
   ANALOG_WRITE: 0x19,
- };
+};
 
 Port.REPLY = {
   ACK:  0x80,
@@ -587,6 +589,12 @@ class Board extends Emitter {
     return 0;
   }
 
+  get RESOLUTION() {
+    return {
+      ADC: ADC_RESOLUTION
+    };
+  }
+
   setSamplingInterval(ms) {
     samplingInterval = Math.min(Math.max(ms, 5), 65535);
   }