From 860283aff19c689d4c744d873cb1b08984f8c1b5 Mon Sep 17 00:00:00 2001
From: Bertrand Lemasle <blemasle@gmail.com>
Date: Thu, 27 Dec 2018 20:35:05 +1300
Subject: [PATCH] Forcing sim808 to powerOff before deep sleep regardless of
 the current state

---
 src/MainUnit.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/MainUnit.cpp b/src/MainUnit.cpp
index 37b51df..892e2cd 100644
--- a/src/MainUnit.cpp
+++ b/src/MainUnit.cpp
@@ -13,7 +13,9 @@ namespace mainunit {
 	namespace details {
 
 		void prepareSleep() {
+			hardware::sim808::powerOff(); //forcing power off, regardless of the counts and current use
 			hardware::sim808::simSerial.end(); //avoid woke up by SoftwareSerial interrupt
+
 			delay(5); //ensure log messages have been printed out
 		}
 
@@ -44,8 +46,8 @@ namespace mainunit {
 		#define CURRENT_LOGGER_FUNCTION "deepSleep"
 		NOTICE_FORMAT("%ds", seconds);
 
-		interruptIn(seconds);
 		details::prepareSleep();
+		interruptIn(seconds);
 		LowPower.powerDown(SLEEP_FOREVER, ADC_OFF, BOD_OFF);
 		details::wokeUp();
 	}