Basic Blink
Simple blink example to confirm that the basic build system is working with your system.
We use Timer instead of a loop because we want to allow WiFi communications to work in the background. See Multitasking.
The LED on many development boards is connected to GPIO2, so this is the default.
If you get no response then check the documentation or schematic as your system may differ and change the LED_PIN definition accordingly.
For example, the NodeMCU ESP-C3 kits have an RGB LED connected to GPIO 3, 4 & 5.
References
SoC support
esp32
esp32c3
esp32s2
esp32s3
esp8266
host
rp2040