How to flash the firmware Install this esphome-flasher Open esphome-flasher Select your serial port where you have connected the wemos Download petalot.v1.2.bin and go to browser and search and open petalot.v1.2.bin Press Flash ESP Connect your phone to the WIFI "PETALOT-XXXXXX" and browser to 192.168.4.1 (If the page does not load try deactivating your mobile data connection) (optional) Enter SSID, password, IP address and subnet for your local WIFI (optional) Open the IP address used in the previous step in your browser