I have a sketch that reads a temperature from an RTD connected to a MAX31865 RTD to Digital Converter. The MAX31865 is connected to an ESP8266 NodeMCU and the code I downloaded to the ESP8266 allows for the temperature in °F to be read via Serial Monitor.
Where I am confused is the Blynk instruction telling me to “open their example sketch, change it to my hardware and connection, insert token and “FLASH” the sketch to my ESP8266”
Question: If I have a sketch currently running on my ESP8266 that is successfully displaying the °F temperature on the Serial Monitor, wouldn’t “FLASHING” the Blynk code (above) overwrite my code currently running that is displaying the temperature on the ESP8266 ?