From 068be602a548d6fb906c470b79631fc632c44008 Mon Sep 17 00:00:00 2001
From: Albert Lee <leeeboo@users.noreply.github.com>
Date: Wed, 10 Apr 2019 21:57:59 +0800
Subject: [PATCH] Add function 'backlightOn' & 'backlightOff'

Add function 'backlightOn' & 'backlightOff'
---
 src/index.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/index.js b/src/index.js
index a79e4ea..5ab9bc0 100644
--- a/src/index.js
+++ b/src/index.js
@@ -222,6 +222,18 @@ module.exports = driver({
          */
         turnOff: function (callback) {
             this._setDisplayControl(DisplayControl.display, false, callback);
+        },
+        /*
+         * @param {Function}
+         */
+        backlightOn: function () {
+            this._p3.write(1);
+        },
+        /*
+         * @param {Function}
+         */
+        backlightOff: function () {
+            this._p3.write(0);
         }
     }
 });