Go to Python’s official website and download 2.7. In order to use OTA functionality, you need to install the Python 2.7.x version, if not already installed on your machine. Upload New Sketch Over-The-AirNow, you can upload new sketches to the ESP8266 from Arduino IDE over-the-air.It’s a mandatory step, so that you’re able to do the next updates/uploads over-the-air. Upload Basic OTA Firmware SeriallyUpload the sketch containing OTA firmware serially.Install Python 2.7.x seriesThe first step is to install Python 2.7.x series in your computer.The only disadvantage is that you have to add an extra code for OTA with every sketch you upload, so that you’re able to use OTA in the next update. One important feature of OTA is that one central location can send an update to multiple ESPs sharing same network. ArduinoOTA and espota.py use Digest-MD5 to authenticate upload. It helps reduce the amount of time spent for updating each ESP module at the time of maintenance. OTA (Over the Air) update is the process of loading the firmware to ESP module using. OTA functionality is extremely useful in case of no physical access to the ESP module. The OTA programming allows updating/uploading a new program to ESP8266 using Wi-Fi instead of requiring the user to connect the ESP8266 to a computer via USB to perform the update. Introduction This test is performed given the lack of use of serial ports Arduino Mega 2560 and test communication between the Arduino Mega 2560 and ESP8266 module, test has been conducted, data take into account, in this case the ESP8266 has been configured to work with AT command Firmware v0.9.5.2 module 115200 baud rate. This is known as Over-The-Air (OTA) programming. A fantastic feature of any WiFi-enabled microcontroller like ESP8266 NodeMCU is the ability to update its firmware wirelessly.
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