SunFounder ESP32 Starter Kit
Code
Note:
• Open the 5.7_feel_the_light.ino file under the path of esp32-starter-kit-main\c\codes\5.
7_feel_the_light.
• After selecting the board (ESP32 Dev Module) and the appropriate port, click the Upload button.
• Always displaying “Unknown COMxx”?
After the code is uploaded successfully, the Serial Monitor prints out the photoresistor values from 0 ~ 4095. The
stronger the current ambient brightness, the larger the value displayed on the serial monitor.
Note: For the ESP32, the resolution is between 9 to 12 and it will change the ADC hardware resolution. Else value
will be shifted.
Default is 12 bits (range from 0 to 4096) for all chips except ESP32S3 where default is 13 bits (range from 0 to 8192).
You can add analogReadResolution(10); to setup() function to set a different resolution, such as 20.
1.23. 5.7 Feel the Light 85
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