diff --git a/.gitignore b/.gitignore
index 259148fa..f7c5f50f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,9 @@
 *.exe
 *.out
 *.app
+
+# PlatformIO in VScode
+.pio/
+.vscode/
+*.lnk
+*.bak
diff --git a/examples/customHTML/customHTML.ino b/examples/customHTML/customHTML.ino
index 23dd277a..fbf20a2b 100644
--- a/examples/customHTML/customHTML.ino
+++ b/examples/customHTML/customHTML.ino
@@ -126,7 +126,7 @@ bool loadOptions() {
     Serial.println();
     Serial.printf("LED pin value: %d\n", ledPin);
     Serial.printf("Bool value: %d\n", boolVar);
-    Serial.printf("Long value: %ld\n",longVar);
+    Serial.printf("Long value: %ld\n",(long) longVar);
     Serial.printf("Float value: %d.%d\n", (int)floatVar, (int)(floatVar*1000)%1000);
     Serial.println(stringVar);
     return true;
@@ -170,7 +170,7 @@ void setup() {
     myIP = WiFi.softAPIP();
     captiveRun = true;
   }
-  
+
   // Add custom page handlers to webserver
   server.on("/reload", HTTP_GET, handleLoadOptions);
 
@@ -209,9 +209,9 @@ void setup() {
   server.addJavascript(custom_script, "fetch", /*overwite file*/ false);
   server.addJavascript(thingsboard_script, "ts", /*overwite file*/ false);
 
-  Add custom page title to /setup
+  // Add custom page title to /setup
   server.setSetupPageTitle("Test setup page");
-  Add custom logo to /setup page with custom size
+  // Add custom logo to /setup page with custom size
   server.setLogoBase64(base64_logo, "128", "128", /*overwite file*/ true);
 
   // Enable ACE FS file web editor and add FS info callback fucntion
@@ -223,7 +223,7 @@ void setup() {
   // Start server
   if (server.init()) {
     Serial.print(F("\n\nWeb Server started on IP Address: "));
-    Serial.println(myIP);    
+    Serial.println(myIP);
     Serial.println(F(
       "This is \"customHTML.ino\" example.\n"
       "Open /setup page to configure optional parameters.\n"
diff --git a/examples/highcharts/highcharts.ino b/examples/highcharts/highcharts.ino
index 2b052a9d..117cc75b 100644
--- a/examples/highcharts/highcharts.ino
+++ b/examples/highcharts/highcharts.ino
@@ -174,7 +174,7 @@ void loop() {
     doc["maxBlock"]  =  heap_caps_get_largest_free_block(0);
 #elif defined(ESP8266)
     uint32_t free;
-    uint16_t max;
+    uint32_t max;
     ESP.getHeapStats(&free, &max, nullptr);
     doc["totalHeap"] = free;
     doc["maxBlock"]  =  max;
diff --git a/examples/remoteOTA/remoteOTA.ino b/examples/remoteOTA/remoteOTA.ino
index d2248b74..f37c3894 100644
--- a/examples/remoteOTA/remoteOTA.ino
+++ b/examples/remoteOTA/remoteOTA.ino
@@ -175,7 +175,7 @@ void setup(){
 
   // Try to connect to flash stored SSID, start AP if fails after timeout
   IPAddress myIP = server.startWiFi(30000, "ESP_AP", "123456789" );
-
+  (void) myIP; // return value is not used
   // WiFi.persistent(true);
   // WiFi.begin("PuccosNET", "Tole76tnt");
   // uint32_t beginTime = millis();
diff --git a/pio_ci_ex_ALL.bat b/pio_ci_ex_ALL.bat
index 9da08235..125f92c3 100644
--- a/pio_ci_ex_ALL.bat
+++ b/pio_ci_ex_ALL.bat
@@ -3,17 +3,36 @@ rem Build all listed examples of this library on PIO CLI; may take some time
 rem Verifies that library and all examples still compile
 
 setlocal EnableDelayedExpansion enableextensions
-set CI_DIR=%~dp0\..\async-esp-fs-webserver.pio-ci
+set CI_DIR=%~dp0..\async-esp-fs-webserver.pio-ci
 set EXAMPLES=simpleServerCaptive simpleServer withWebSocket customHTML customOptions gpio_list handleFormData highcharts remoteOTA esp32-cam
 ::set EXAMPLES=simpleServerCaptive
 :: simpleServer withWebSocket customHTML
-FOR  %%E IN (%EXAMPLES%) DO IF NOT EXIST %CI_DIR%\ci_ex_%%E MKDIR %CI_DIR%\ci_ex_%%E
-@echo on
-FOR  %%E IN (%EXAMPLES%) DO (
- pio ci  -c platformio.ini --board=esp32dev --keep-build-dir --build-dir=%CI_DIR%\ci_ex_%%E --lib=. .\examples\%%E\*.* > %CI_DIR%\ci_ex_%%E\build.out.txt 2>%CI_DIR%\ci_ex_%%E\build.err.txt
- @for /f %%i in ("%CI_DIR%\ci_ex_%%E\build.err.txt") do @set size=%%~zi && @echo ###ERROR in %%i && @type %%i
- )
-@echo off
-:: type %CI_DIR%/ci_ex_%%E/build.err.txt
-:: note activation pio verbose option '-v' outputs a lot of text (~25k/compile, ~2MB/pio-ci)
-rem pio ci  -c platformio.ini --board=esp32dev --build-dir=../ci_ex_simpleServer --keep-build-dir --lib=. .\examples\simpleServer\simpleServer.ino
+set BOARDS= esp32dev esp12e
+set OPT_esp12e=-O "lib_deps=ArduinoJson@6.21.4"
+set OPT_esp32dev=-O "lib_deps=ArduinoJson@6.21.4"
+set NOT_esp12e=esp32-cam
+set NOT_esp32dev=esp8266-app
+set EXCLIB= --exclude=lib\*\.git* --exclude=lib\*\.pio --exclude=lib\*\.vscode --exclude=lib\*\built-in-webpages --exclude=lib\*\examples
+
+FOR  %%B IN (%BOARDS%) DO (
+  FOR %%E IN (%EXAMPLES%) DO (
+    if %%E==!NOT_%%B! (
+      echo ### not compiling %%E for %%B
+    ) else (
+      set CIEXDIR=%CI_DIR%\ci_ex_%%B_%%E
+      IF EXIST "!CIEXDIR!" RMDIR /s/q "!CIEXDIR!"
+      MKDIR "!CIEXDIR!"
+      set OPT=!OPT_%%B!
+      set OUT="!CIEXDIR!\build.out.txt"
+      set ERR="!CIEXDIR!\build.err.txt"
+      echo ### Compiling %%E for %%B
+      echo +pio ci  -b %%B !OPT! --keep-build-dir --build-dir="!CIEXDIR!\" --lib=. %EXCLIB%  .\examples\%%E\*.*   1^>!OUT!  2^>!ERR!
+      pio ci -b %%B !OPT! --keep-build-dir --build-dir="!CIEXDIR!" --lib=. %EXCLIB%  .\examples\%%E\*.*   >!OUT!  2>!ERR!
+      FOR /f %%i IN (!ERR!) DO IF EXIST %%i IF %%~zi GTR 0 ECHO ###ERROR in %%i && TYPE %%i
+    )
+    echo ### DONE
+  )
+)
+
+:: note activation pio verbose option '-v' generates a lot of output (~25k/compile, ~2MB/pio-ci)
+
diff --git a/platformio.ini b/platformio.ini
index 039d795a..51f532f2 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -9,9 +9,9 @@
 ; https://docs.platformio.org/page/projectconf.html
 
 [env:esp32dev]
+framework = arduino
 platform = espressif32
 board = esp32dev
-framework = arduino
 lib_deps = bblanchon/ArduinoJson@^6.21.4
   DNSServer@^2.0.0
   ESPmDNS@^2.0.0
@@ -21,3 +21,13 @@ lib_deps = bblanchon/ArduinoJson@^6.21.4
   Update@^2.0.0
 
 
+[env:esp12e]
+framework = arduino
+platform = espressif8266
+board = esp12e
+board_build.mcu = esp8266
+lib_deps = bblanchon/ArduinoJson@^6.21.4
+  DNSServer@^1.1.0
+  ESP8266mDNS@^1.2
+  ESP8266WiFi@^1.0
+  LittleFS
diff --git a/src/AsyncFsWebServer.cpp b/src/AsyncFsWebServer.cpp
index ad05fe3d..504aa7ec 100644
--- a/src/AsyncFsWebServer.cpp
+++ b/src/AsyncFsWebServer.cpp
@@ -21,7 +21,7 @@ bool AsyncFsWebServer::init(AwsEventHandler wsHandle) {
     //////////////////////    BUILT-IN HANDLERS    ////////////////////////////
     using namespace std::placeholders;
 
-    on("/favicon.ico", HTTP_GET, std::bind(&AsyncFsWebServer::sendOK, this, _1));
+    //on("/favicon.ico", HTTP_GET, std::bind(&AsyncFsWebServer::sendOK, this, _1));
     on("/connect", HTTP_POST, std::bind(&AsyncFsWebServer::doWifiConnection, this, _1));
     on("/scan", HTTP_GET, std::bind(&AsyncFsWebServer::handleScanNetworks, this, _1));
     on("/wifistatus", HTTP_GET, std::bind(&AsyncFsWebServer::getStatus, this, _1));
diff --git a/src/AsyncFsWebServer.h b/src/AsyncFsWebServer.h
index 00ce8ccc..4593299a 100644
--- a/src/AsyncFsWebServer.h
+++ b/src/AsyncFsWebServer.h
@@ -30,7 +30,7 @@
 #define CONFIG_FILE "/config.json"
 
 #define DBG_OUTPUT_PORT     Serial
-#define LOG_LEVEL           2         // (0 disable, 1 error, 2 info, 3 debug)
+#define LOG_LEVEL           3         // (0 disable, 1 error, 2 info, 3 debug)
 #include "SerialLog.h"
 #include "CaptiverPortal.hpp"