Howtosignalprocessing
- What could be the main issue if an ESP32 board fails to function?
- Can ESP32 connect to hidden SSID?
- How do I know if my ESP32 is working?
What could be the main issue if an ESP32 board fails to function?
This error usually implies some kind of a hardware issue. This may be because the hardware is not working properly at all, the RX/TX serial lines are not connected, or because there is some problem with resetting into the download mode.
Can ESP32 connect to hidden SSID?
The ESP32 is unable to connect via the regular WiFi library to a hidden access point. Using the sample code in WiFi/examples/WiFiClient/WiFiClient. ino, providing a valid access point name and password, the code successfully connects if the access point is not hidden.
How do I know if my ESP32 is working?
The first and most basic test that can be done is to power up the board via a USB cable and to check that the red LED lights up as shown in the image below. This confirms that the 3.3V power from the on-board regulator is working.
