https://learn.sparkfun.com/tutorials/esp8266-thing-development-board-hookup-guide/all 20/24
Before uploading, make sure to paste your authoriazation token into the auth[] variable. Also make sure to load your WiFi
network settings into the Blynk.begin(auth, "ssid", "pass") function.
Then upload!
Run the Project
After the app has uploaded, open the serial monitor, setting the baud rate to 9600. Wait for the “Ready (ping: xms).” message.