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In this assembly, we have an SD Card connected to the ESP8266. We put a DHT22, which measures temperature and humidity and sends this information to the SD card.
On the circuit, it shows humidity of 43.40 and a temperature of 26.80. Every time that it shows the message “opening the file successfully,” its because it ran once in the loop. What occurs in this scenario is as follows: only the values are being written to the log file, and thus, the message “opening the file successfully” is only an advisory, and it is not recorded.”

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