From ae67df656279ba10ed606f3764a861aa3cfc1503 Mon Sep 17 00:00:00 2001
From: Adrian Zankich <adzankich@gmail.com>
Date: Wed, 8 Jul 2015 09:29:36 -0700
Subject: [PATCH] Add GrovePiezoVibrationSensorDriver

---
 platforms/gpio/gpio.go          |  2 ++
 platforms/gpio/grove_drivers.go | 21 +++++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/platforms/gpio/gpio.go b/platforms/gpio/gpio.go
index 7b3746c3..a94fea52 100644
--- a/platforms/gpio/gpio.go
+++ b/platforms/gpio/gpio.go
@@ -36,6 +36,8 @@ const (
 	Error = "error"
 	// Data event
 	Data = "data"
+	// Vibration event
+	Vibration = "vibration"
 )
 
 // PwmWriter interface represents an Adaptor which has Pwm capabilities
diff --git a/platforms/gpio/grove_drivers.go b/platforms/gpio/grove_drivers.go
index 750cffd5..04dbff0a 100644
--- a/platforms/gpio/grove_drivers.go
+++ b/platforms/gpio/grove_drivers.go
@@ -11,6 +11,7 @@ var _ gobot.Driver = (*GroveSoundSensorDriver)(nil)
 var _ gobot.Driver = (*GroveButtonDriver)(nil)
 var _ gobot.Driver = (*GroveBuzzerDriver)(nil)
 var _ gobot.Driver = (*GroveLightSensorDriver)(nil)
+var _ gobot.Driver = (*GrovePiezoVibrationSensorDriver)(nil)
 var _ gobot.Driver = (*GroveLedDriver)(nil)
 var _ gobot.Driver = (*GroveRotaryDriver)(nil)
 var _ gobot.Driver = (*GroveRelayDriver)(nil)
@@ -31,6 +32,10 @@ type GroveLightSensorDriver struct {
 	*AnalogSensorDriver
 }
 
+type GrovePiezoVibrationSensorDriver struct {
+	*AnalogSensorDriver
+}
+
 type GroveBuzzerDriver struct {
 	*BuzzerDriver
 }
@@ -89,6 +94,22 @@ func NewGroveLightSensorDriver(a AnalogReader, name string, pin string, v ...tim
 	}
 }
 
+func NewGrovePiezoVibrationSensorDriver(a AnalogReader, name string, pin string, v ...time.Duration) *GrovePiezoVibrationSensorDriver {
+	sensor := &GrovePiezoVibrationSensorDriver{
+		AnalogSensorDriver: NewAnalogSensorDriver(a, name, pin, v...),
+	}
+
+	sensor.AddEvent(Vibration)
+
+	gobot.On(sensor.Event(Data), func(data interface{}) {
+		if data.(int) == 1023 {
+			gobot.Publish(sensor.Event(Vibration), data)
+		}
+	})
+
+	return sensor
+}
+
 func NewGroveSoundSensorDriver(a AnalogReader, name string, pin string, v ...time.Duration) *GroveSoundSensorDriver {
 	return &GroveSoundSensorDriver{
 		AnalogSensorDriver: NewAnalogSensorDriver(a, name, pin, v...),