From a9277e757af72ef318ab17114baab0b8804871d3 Mon Sep 17 00:00:00 2001
From: Tomas Mudrunka <tomas@mudrunka.cz>
Date: Wed, 29 Aug 2012 01:15:58 +0200
Subject: [PATCH] Experimental switched voltage regulator using arduino ADC and
 PWM

---
 arduino/.gitignore              |  1 +
 arduino/Regulator/Regulator.ino | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 arduino/Regulator/Regulator.ino

diff --git a/arduino/.gitignore b/arduino/.gitignore
index dc5cbd5..f1ef629 100644
--- a/arduino/.gitignore
+++ b/arduino/.gitignore
@@ -1,4 +1,5 @@
 *.*
+!*.ino
 !*.pde
 !/.gitignore
 applet/
diff --git a/arduino/Regulator/Regulator.ino b/arduino/Regulator/Regulator.ino
new file mode 100644
index 0000000..879654b
--- /dev/null
+++ b/arduino/Regulator/Regulator.ino
@@ -0,0 +1,19 @@
+/* Software voltage regulator using analog read and PWM
+   Connect both voltage sensor and output pin to possitive side of capacitor
+   Then connect negative side to ground
+   Voltage should be approximatelly stabilized at AREF/2
+   You can use some push-pull (totem pole) kind of buffer at output pin to supply more current
+*/
+
+
+#define SENSOR A0
+#define OUTPIN 11
+
+void setup()  { 
+} 
+
+void loop()  { 
+  analogWrite(OUTPIN, map(analogRead(SENSOR), 0, 1023, 255, 0));
+}
+
+
-- 
2.30.2