In this video we show how to update your esp32 firmware over the air. Also looking at how to do it without connecting it to your home router, using a webserver in Access point mode. The esp32 creates its own wi-fi access point and serves a simple web page for uploading the new firmware. This method is safer for field devices and great when you don’t want to expose your esp32 on the local network. Buy ESP32 - We also cover: * How OTA works in AP mode * Using a browser to upload firmware Subscribe for more practical embedded tutorials.