ble_ota component: https://components.espressif.com/components/espressif/ble_ota/versions/0.1.12/examples/ble_ota?language=en Sample code https://github.com/espressif/esp-iot-solution/tree/master/examples/bluetooth/ble_ota ESP BLE OTA Android: https://github.com/EspressifApps/esp-ble-ota-android/rel...