From 7a7b697ff9360416faa7a5dc239c004518538903 Mon Sep 17 00:00:00 2001
From: me-no-dev <hristo@espressif.com>
Date: Wed, 8 Feb 2017 20:32:49 +0200
Subject: [PATCH] Add ESP::deepSleep(us)

fixes: https://github.com/espressif/arduino-esp32/issues/51
---
 cores/esp32/Esp.cpp | 6 ++++++
 cores/esp32/Esp.h   | 1 +
 2 files changed, 7 insertions(+)

diff --git a/cores/esp32/Esp.cpp b/cores/esp32/Esp.cpp
index 7ce2aac8..70203701 100644
--- a/cores/esp32/Esp.cpp
+++ b/cores/esp32/Esp.cpp
@@ -20,6 +20,7 @@
 #include "Arduino.h"
 #include "Esp.h"
 #include "rom/spi_flash.h"
+#include "esp_deep_sleep.h"
 #include <memory>
 
 //#define DEBUG_SERIAL Serial
@@ -80,6 +81,11 @@ unsigned long long operator"" _GB(unsigned long long x)
 
 EspClass ESP;
 
+void EspClass::deepSleep(uint32_t time_us)
+{
+    esp_deep_sleep(time_us);
+}
+
 uint32_t EspClass::getCycleCount()
 {
     uint32_t ccount;
diff --git a/cores/esp32/Esp.h b/cores/esp32/Esp.h
index db90709a..02eb25ba 100644
--- a/cores/esp32/Esp.h
+++ b/cores/esp32/Esp.h
@@ -60,6 +60,7 @@ public:
 
     const char * getSdkVersion();
 
+    void deepSleep(uint32_t time_us);
 
     uint8_t getCpuFreqMHz();