diff --git a/libraries/Ticker/keywords.txt b/libraries/Ticker/keywords.txt
index 97b6e80..18a97ad 100644
--- a/libraries/Ticker/keywords.txt
+++ b/libraries/Ticker/keywords.txt
@@ -10,8 +10,10 @@ Ticker	KEYWORD1
 
 attach	KEYWORD2
 attach_ms	KEYWORD2
+attach_us	KEYWORD2
 once	KEYWORD2
 once_ms KEYWORD2
+once_us KEYWORD2
 detach	KEYWORD2
 
 #######################################	
diff --git a/libraries/Ticker/src/Ticker.cpp b/libraries/Ticker/src/Ticker.cpp
index 059775a..dd50472 100644
--- a/libraries/Ticker/src/Ticker.cpp
+++ b/libraries/Ticker/src/Ticker.cpp
@@ -25,6 +25,17 @@ Ticker::_attach_ms(uint32_t milliseconds, bool repeat, callback_with_arg_t callb
     sysctl_enable_irq();
 }
 
+void
+Ticker::_attach_us(uint32_t microseconds, bool repeat, callback_with_arg_t callback, size_t arg)
+{
+    user_callback = callback;
+    _arg = arg;
+    timer_set_interval(timer_device_number_t(timer_id), TIMER_CHANNEL_0, microseconds * 1000);
+    timer_irq_register(timer_device_number_t(timer_id), TIMER_CHANNEL_0, !repeat, 4, timer_callback, this);
+    timer_set_enable(timer_device_number_t(timer_id), TIMER_CHANNEL_0, 1);
+    sysctl_enable_irq();
+}
+
 void 
 Ticker::detach()
 {
diff --git a/libraries/Ticker/src/Ticker.h b/libraries/Ticker/src/Ticker.h
index b29c30d..ec21236 100644
--- a/libraries/Ticker/src/Ticker.h
+++ b/libraries/Ticker/src/Ticker.h
@@ -32,6 +32,11 @@ public:
         _attach_ms(milliseconds, true, reinterpret_cast<callback_with_arg_t>(callback), 0);
     }
 
+    void attach_us(uint32_t microseconds, callback_t callback)
+    {
+        _attach_us(microseconds, true, reinterpret_cast<callback_with_arg_t>(callback), 0);
+    }
+
     template<typename TArg>
     void attach(float seconds, void (*callback)(TArg), TArg arg)
     {
@@ -48,6 +53,14 @@ public:
         _attach_ms(milliseconds, true, reinterpret_cast<callback_with_arg_t>(callback), arg32);
     }
 
+    template<typename TArg>
+    void attach_us(uint32_t microseconds, void (*callback)(TArg), TArg arg)
+    {
+        configASSERT(sizeof(TArg) <= sizeof(size_t));
+        size_t arg32 = (size_t)arg;
+        _attach_us(microseconds, true, reinterpret_cast<callback_with_arg_t>(callback), arg32);
+    }
+
     void once(float seconds, callback_t callback)
     {
         _attach_ms(seconds * 1000, false, reinterpret_cast<callback_with_arg_t>(callback), 0);
@@ -58,6 +71,11 @@ public:
         _attach_ms(milliseconds, false, reinterpret_cast<callback_with_arg_t>(callback), 0);	
     }
 
+    void once_us(uint32_t microseconds, callback_t callback)
+    {
+        _attach_us(microseconds, false, reinterpret_cast<callback_with_arg_t>(callback), 0);	
+    }
+
     template<typename TArg>
     void once(float seconds, void (*callback)(TArg), TArg arg)
     {
@@ -74,6 +92,14 @@ public:
         _attach_ms(milliseconds, false, reinterpret_cast<callback_with_arg_t>(callback), arg32);
     }
 
+    template<typename TArg>
+    void once_us(uint32_t microseconds, void (*callback)(TArg), TArg arg)
+    {
+        configASSERT(sizeof(TArg) <= sizeof(size_t));
+        size_t arg32 = (size_t)(arg);
+        _attach_us(microseconds, false, reinterpret_cast<callback_with_arg_t>(callback), arg32);
+    }
+
     void detach();
     bool active();
 
@@ -82,6 +108,7 @@ public:
 
 protected:
     void _attach_ms(uint32_t milliseconds, bool repeat, callback_with_arg_t callback, size_t arg);
+    void _attach_us(uint32_t microseconds, bool repeat, callback_with_arg_t callback, size_t arg);
 
 private:
     timer_id_t timer_id;