If you like the ESP and you want to do more projects\u00a0you can read my eBook Home Automation using ESP8266<\/a>.<\/p>\n Let\u2019s get started!<\/strong><\/p>\n In order to upload firmware to your ESP8266 wirelessly, you have to upload the BasicOTA.ino sketch example first.<\/p>\n Having the latest Arduino IDE software installed from arduino.cc\/en\/Main\/Software<\/a>. Follow these next instructions:<\/p>\n 1) Connect your ESP8266 to your computer with a USB cable:<\/p>\n 2) Go to Tools<\/strong>\u00a0to select your ESP board model. You also have to choose your ESP’s COM port<\/p>\n 3) Open the BasicOTA.ino example: File<\/strong> > Examples<\/strong> > Arduino OTA<\/strong> > BasicOTA.ino<\/strong> or copy the following sketch to your Arduino IDE<\/p>\n View raw code<\/a><\/p>\n Note:<\/strong> you have to change the sketch example with your SSID and password.<\/p>\n 4) Press the “Upload”\u00a0button in the Arduino IDE and wait for the “Done uploading” message<\/p>\n 5) Open the Arduino IDE serial monitor at a baud rate of 115200. If you’ve entered the right network credentials you should see your ESP IP address after a few seconds:<\/p>\n Now your ESP8266 is ready to receive OTA firmware updates. You can unplug your ESP8266 from your computer and power it through any power source (for example a power bank). If your\u00a0ESP8266 has a wireless connection to your router, you should be fine to upload new firmware.<\/p>\n 1) Go to your Arduino IDE. Open Tools<\/strong> tab select the Port<\/strong> option and you should see something like this: esp8266-xxxxxx<\/strong> at your_esp_ip_address<\/strong><\/p>\n 2) Copy the\u00a0following sketch to your Arduino IDE and upload it to your ESP8266. This sketch blinks the ESP12-E NodeMCU kit built-in LED\u00a0every second<\/p>\n View raw code<\/a><\/p>\n Note:<\/strong> you have to change the sketch example with your SSID and password.<\/p>\n 3)\u00a0Press the “Upload”\u00a0button in the Arduino IDE and wait for the “Done uploading” message<\/p>\n 4) Your ESP should have it’s built-in LED blinking every second<\/p>\n I hope this tutorial was useful. Now, you can have your ESP8266 in a remote location and update its firmware without having physical access to the ESP device.<\/p>\n Do you have any questions?\u00a0Leave a comment down below.<\/p>\n Thanks for reading. If you like this post probably you might like my next ones, so please support me by subscribing my blog<\/a> and my\u00a0Facebook Page.<\/p>\n","protected":false},"excerpt":{"rendered":" OTA (Over the Air) update is the process of loading a new firmware to ESP8266 module using WiFi connection rather than a serial communication. This type of\u00a0functionality is extremely useful … <\/p>\n![\"\"](\"https:\/\/i1.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2016\/12\/Python_2.png?resize=503%2C364\")
<\/p>\nStep #1 – Uploading BasicOTA.ino with serial communication<\/h2>\n
![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2017\/01\/ESP8266_connected_to_computer.jpg?resize=480%2C261&quality=100&strip=all&ssl=1\")
<\/p>\n![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2017\/01\/select_esp8266_com_port.png?resize=548%2C393&quality=100&strip=all&ssl=1\")
<\/p>\n\/*********\n Rui Santos\n Complete project details at http:\/\/randomnerdtutorials.com\n Arduino IDE example: Examples > Arduino OTA > BasicOTA.ino\n*********\/\n\n#include <ESP8266WiFi.h>\n#include <ESP8266mDNS.h>\n#include <WiFiUdp.h>\n#include <ArduinoOTA.h>\n\n\/\/ Replace with your network credentials\nconst char* ssid = "YOUR_SSID";\nconst char* password = "YOUR_PASSWORD";\n\nvoid setup() {\n Serial.begin(115200);\n Serial.println("Booting");\n WiFi.mode(WIFI_STA);\n WiFi.begin(ssid, password);\n while (WiFi.waitForConnectResult() != WL_CONNECTED) {\n Serial.println("Connection Failed! Rebooting...");\n delay(5000);\n ESP.restart();\n }\n\n \/\/ Port defaults to 8266\n \/\/ ArduinoOTA.setPort(8266);\n\n \/\/ Hostname defaults to esp8266-[ChipID]\n \/\/ ArduinoOTA.setHostname("myesp8266");\n\n \/\/ No authentication by default\n \/\/ ArduinoOTA.setPassword((const char *)"123");\n\n ArduinoOTA.onStart([]() {\n Serial.println("Start");\n });\n ArduinoOTA.onEnd([]() {\n Serial.println("\\nEnd");\n });\n ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {\n Serial.printf("Progress: %u%%\\r", (progress \/ (total \/ 100)));\n });\n ArduinoOTA.onError([](ota_error_t error) {\n Serial.printf("Error[%u]: ", error);\n if (error == OTA_AUTH_ERROR) Serial.println("Auth Failed");\n else if (error == OTA_BEGIN_ERROR) Serial.println("Begin Failed");\n else if (error == OTA_CONNECT_ERROR) Serial.println("Connect Failed");\n else if (error == OTA_RECEIVE_ERROR) Serial.println("Receive Failed");\n else if (error == OTA_END_ERROR) Serial.println("End Failed");\n });\n ArduinoOTA.begin();\n Serial.println("Ready");\n Serial.print("IP address: ");\n Serial.println(WiFi.localIP());\n}\n\nvoid loop() {\n ArduinoOTA.handle();\n}\n<\/code><\/pre>\n\t![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2017\/01\/Arduino-IDE.png?resize=577%2C503&quality=100&strip=all&ssl=1\")
<\/p>\n![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2017\/01\/arduino_serial_monitor.png?resize=570%2C350&quality=100&strip=all&ssl=1\")
<\/p>\nStep #2 – Uploading a new sketch OTA (Over the Air)<\/h2>\n
![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2017\/01\/ESP8266_connected_to_powerbank.jpg?resize=550%2C382&quality=100&strip=all&ssl=1\")
<\/p>\n![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2017\/01\/select_esp8266_wifi.png?resize=660%2C394&quality=100&strip=all&ssl=1\")
<\/p>\n\/*********\n Rui Santos\n Complete project details at http:\/\/randomnerdtutorials.com\n Arduino IDE example: Examples > Arduino OTA > BasicOTA.ino\n*********\/\n\n#include <ESP8266WiFi.h>\n#include <ESP8266mDNS.h>\n#include <WiFiUdp.h>\n#include <ArduinoOTA.h>\n\n\/\/ Replace with your network credentials\nconst char* ssid = "YOUR_SSID";\nconst char* password = "YOUR_PASSWORD";\n\nconst int ESP_BUILTIN_LED = 2;\n\nvoid setup() {\n Serial.begin(115200);\n Serial.println("Booting");\n WiFi.mode(WIFI_STA);\n WiFi.begin(ssid, password);\n while (WiFi.waitForConnectResult() != WL_CONNECTED) {\n Serial.println("Connection Failed! Rebooting...");\n delay(5000);\n ESP.restart();\n }\n\n \/\/ Port defaults to 8266\n \/\/ ArduinoOTA.setPort(8266);\n\n \/\/ Hostname defaults to esp8266-[ChipID]\n \/\/ ArduinoOTA.setHostname("myesp8266");\n\n \/\/ No authentication by default\n \/\/ ArduinoOTA.setPassword((const char *)"123");\n\n ArduinoOTA.onStart([]() {\n Serial.println("Start");\n });\n ArduinoOTA.onEnd([]() {\n Serial.println("\\nEnd");\n });\n ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {\n Serial.printf("Progress: %u%%\\r", (progress \/ (total \/ 100)));\n });\n ArduinoOTA.onError([](ota_error_t error) {\n Serial.printf("Error[%u]: ", error);\n if (error == OTA_AUTH_ERROR) Serial.println("Auth Failed");\n else if (error == OTA_BEGIN_ERROR) Serial.println("Begin Failed");\n else if (error == OTA_CONNECT_ERROR) Serial.println("Connect Failed");\n else if (error == OTA_RECEIVE_ERROR) Serial.println("Receive Failed");\n else if (error == OTA_END_ERROR) Serial.println("End Failed");\n });\n ArduinoOTA.begin();\n Serial.println("Ready");\n Serial.print("IP address: ");\n Serial.println(WiFi.localIP());\n pinMode(ESP_BUILTIN_LED, OUTPUT);\n}\n\nvoid loop() {\n ArduinoOTA.handle();\n digitalWrite(ESP_BUILTIN_LED, LOW);\n delay(1000);\n digitalWrite(ESP_BUILTIN_LED, HIGH);\n delay(1000);\n}\n<\/code><\/pre>\n\tWrapping Up<\/h2>\n