From a58079bf86a3ebe82b4098e16301d29e7b0a0a48 Mon Sep 17 00:00:00 2001
From: Volodymyr Shymanskyy <vshymanskyi@gmail.com>
Date: Mon, 11 Sep 2017 19:39:51 +0300
Subject: [PATCH] Add poweroff()

---
 TinyGsmClientSIM800.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/TinyGsmClientSIM800.h b/TinyGsmClientSIM800.h
index 4f981a1..978fc37 100644
--- a/TinyGsmClientSIM800.h
+++ b/TinyGsmClientSIM800.h
@@ -256,6 +256,8 @@ public:
     if (waitResponse(1000L, res) != 1) {
       return "";
     }
+    res.replace(GSM_NL "OK" GSM_NL, "");
+    res.replace(GSM_NL, "");
     res.trim();
     return res;
   }
@@ -280,6 +282,11 @@ public:
     return init();
   }
 
+  bool poweroff() {
+    sendAT(GF("+CPOWD=1"));
+    return waitResponse(GF("NORMAL POWER DOWN")) == 1;
+  }
+
   bool radioOff() {
     if (!autoBaud()) {
       return false;