diff --git a/.vscode/extensions.json b/.vscode/extensions.json
index e80666b..0f0d740 100644
--- a/.vscode/extensions.json
+++ b/.vscode/extensions.json
@@ -1,7 +1,7 @@
-{
-    // See http://go.microsoft.com/fwlink/?LinkId=827846
-    // for the documentation about the extensions.json format
-    "recommendations": [
-        "platformio.platformio-ide"
-    ]
-}
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ]
+}
diff --git a/lib/AliyunIoTSDK/src/AliyunIoTSDK.cpp b/lib/AliyunIoTSDK/src/AliyunIoTSDK.cpp
index abac382..177db8d 100644
--- a/lib/AliyunIoTSDK/src/AliyunIoTSDK.cpp
+++ b/lib/AliyunIoTSDK/src/AliyunIoTSDK.cpp
@@ -187,7 +187,7 @@ void AliyunIoTSDK::loop() {
 
 void AliyunIoTSDK::sendEvent(const char *eventId, const char *param) {
     char topicKey[156];
-    sprintf(topicKey, "%s/%s/post", 0, eventId);
+    snprintf(topicKey, sizeof(topicKey) - 1, "%d/%s/post", 0, eventId);
     char jsonBuf[1024];
     sprintf(jsonBuf, ALINK_EVENT_BODY_FORMAT, param, eventId);
     Serial.println(jsonBuf);
diff --git a/lib/IRremoteESP8266/src/IRrecv.cpp b/lib/IRremoteESP8266/src/IRrecv.cpp
index 22e1fce..bd51e97 100644
--- a/lib/IRremoteESP8266/src/IRrecv.cpp
+++ b/lib/IRremoteESP8266/src/IRrecv.cpp
@@ -33,13 +33,13 @@ volatile irparams_t irparams;
 irparams_t *irparams_save;  // A copy of the interrupt state while decoding.
 
 #ifndef UNIT_TEST
-static void ICACHE_RAM_ATTR read_timeout(void *arg __attribute__((unused))) {
+static void IRAM_ATTR read_timeout(void *arg __attribute__((unused))) {
   os_intr_lock();
   if (irparams.rawlen) irparams.rcvstate = kStopState;
   os_intr_unlock();
 }
 
-static void ICACHE_RAM_ATTR gpio_intr() {
+static void IRAM_ATTR gpio_intr() {
   uint32_t now = system_get_time();
   uint32_t gpio_status = GPIO_REG_READ(GPIO_STATUS_ADDRESS);
   static uint32_t start = 0;
diff --git a/lib/RC-Switch/RCSwitch.cpp b/lib/RC-Switch/RCSwitch.cpp
index cb7a36b..5878122 100644
--- a/lib/RC-Switch/RCSwitch.cpp
+++ b/lib/RC-Switch/RCSwitch.cpp
@@ -43,7 +43,7 @@
 #if defined(ESP8266)
 // interrupt handler and related code must be in RAM on ESP8266,
 // according to issue #46.
-#define RECEIVE_ATTR ICACHE_RAM_ATTR
+#define RECEIVE_ATTR IRAM_ATTR
 #define VAR_ISR_ATTR
 #elif defined(ESP32)
 #define RECEIVE_ATTR IRAM_ATTR
diff --git a/platformio.ini b/platformio.ini
index e53778b..3c31683 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -18,12 +18,12 @@ framework = arduino
 monitor_speed = 115200
 upload_speed = 115200
 board_build.flash_mode = dout
-build_flags = 
+build_flags =
+    -Wno-unused-function
+	-Wno-unused-variable
 	-DLOG_DEBUG=1
 	-DLOG_INFO=1
 	-DLOG_ERROR=1
-upload_port = COM7
-monitor_port = COM7
 
 [env:esp8266-1m-base]
 board = ${common.board_1m}
diff --git a/src/IRBabyIRIS.cpp b/src/IRBabyIRIS.cpp
index dadcf2b..b86fc72 100644
--- a/src/IRBabyIRIS.cpp
+++ b/src/IRBabyIRIS.cpp
@@ -25,11 +25,11 @@
 #include <stdio.h>
 #include <string.h>
 
-#include <ESP.h>
+#include <Esp.h>
 #include <WString.h>
 
 #include "defines.h"
-#include "IRBabyIRIS.h"
+#include "IRbabyIRIS.h"
 
 int getIRISKitVersion(char *buffer, int buffer_size) {
     if (NULL == buffer) {
diff --git a/src/IRBabyAlink.cpp b/src/IRbabyAlink.cpp
similarity index 99%
rename from src/IRBabyAlink.cpp
rename to src/IRbabyAlink.cpp
index fb8ff3b..98165a8 100644
--- a/src/IRBabyAlink.cpp
+++ b/src/IRbabyAlink.cpp
@@ -24,7 +24,7 @@
 #include <Arduino.h>
 
 #include "IRbabySerial.h"
-#include "IRBabyAlink.h"
+#include "IRbabyAlink.h"
 #include "IRbabyGlobal.h"
 
 #define TOPIC_NAME_MAX  (64)
diff --git a/src/IRBabyAlink.h b/src/IRbabyAlink.h
similarity index 100%
rename from src/IRBabyAlink.h
rename to src/IRbabyAlink.h