Code examples

You can find completed snippets of main.cpp and Platformio.ini at .

In that updated main.cpp, you can see three new functions created by ChatGPT based on the previous version:

• connectToWiFi(): The function to connect Wi-Fi by SSID and password
• pingHost(): Ping google.com to check whether the public internet is accessible
• syncNTP: Obtain the current date and time from the public internet NTP server

In addition, in the updated platformio.ini, we also adopt a flexible approach to store and pass the following critical parameters to the main code using build_flags. When prompting, you can ask ChatGPT to use the same name macros from platformio.ini. Doing so would ensure that the output of ChatGPT does not use different names:

build_flags =
……..
-D WIFI_SSID=\"WiFi_TEST\"   //replace it by your actual Wi-Fi SSID
-D WIFI_PASSWORD=\"WiFi_Password\" ...