add touch and release threshold config

index.js

@@ -12,6 +12,8 @@ const NPR = require('npr-api'),
       auth = require('./lib/auth'),
       fs = require('fs'),
       path = require('path'),
+      config = path.join(process.env['HOME'], '.npr-one'),
+      dotenv = require('dotenv').load({silent: true, path: config}),
       Player = require('./lib/player'),
       Story = require('./lib/story'),
       UI = require('./lib/ui');
@@ -39,13 +41,19 @@ npr.one
    .then(story.getRecommendations.bind(story))
    .then(player.load.bind(player))
    .then(() => {
-     const ui = new UI();
+
+     const ui = new UI({
+       touchThreshold: process.env.MPR121_TOUCH,
+       releaseThreshold: process.env.MPR121_RELEASE
+     });
+
      ui.on('skip', player.skip.bind(player));
      ui.on('pause', player.pause.bind(player));
      ui.on('rewind', player.rewind.bind(player));
      ui.on('interesting', player.interesting.bind(player));
      ui.on('volumeup', player.increaseVolume.bind(player));
      ui.on('volumedown', player.decreaseVolume.bind(player));
+
    })
    .catch(function(err) {
      console.error(err, err.stack);

lib/auth.js

@@ -3,7 +3,6 @@
 const inquirer = require('inquirer'),
       path = require('path'),
       config = path.join(process.env['HOME'], '.npr-one'),
-      dotenv = require('dotenv').load({silent: true, path: config}),
       fs = require('fs');
 
 let npr;

lib/ui.js

@@ -5,10 +5,13 @@ const EventEmitter = require('events'),
 
 class UI extends EventEmitter {
 
-  constructor() {
+  constructor(config) {
 
     super();
 
+    this.touchThreshold = config.touchThreshold || 24;
+    this.releaseThreshold = config.releaseThreshold || 12;
+
     if(process.platform == 'linux' && process.arch == 'arm')
       this.mprInit();
 
@@ -40,7 +43,7 @@ class UI extends EventEmitter {
     const MPR121 = require('adafruit-mpr121'),
           mpr121 = new MPR121(0x5A, 1);
 
-    mpr121.setThresholds(24, 12);
+    mpr121.setThresholds(this.touchThreshold, this.releaseThreshold);
 
     mpr121.on('touch', (pin) => {
       if(pin === 0) this.skip();