From 4ab164b3737b96fbe39aeae2ab9119ed05f4bb84 Mon Sep 17 00:00:00 2001
From: Kristin Galvin <kristin.galvin@nearform.com>
Date: Sun, 19 Jan 2020 17:10:10 -0800
Subject: [PATCH] audio test

---
 apps/stetho/stetho.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/apps/stetho/stetho.js b/apps/stetho/stetho.js
index 84658e85f..c3c9ccff9 100644
--- a/apps/stetho/stetho.js
+++ b/apps/stetho/stetho.js
@@ -8,6 +8,16 @@ var lastHigh = getTime();
 var hrmList = [];
 var hrm;
 
+var SPEAKER_PIN = D18;
+function freq(f) {
+  if (f===0) digitalWrite(SPEAKER_PIN, 0);
+   else analogWrite(SPEAKER_PIN, 0.5, {freq: f});
+ }
+ freq(1000);
+ freq(1500);
+ freq(0);
+
+ 
 function readHRM() {
   var a = analogRead(D29);
   var h = getTime();