Closed illxi closed 6 years ago
Check the hardware variant you selected. Ensure it's heltec_wifi_kit or heltec_wifi_lora that you selected under board menu (if it's not there then update your SDK) OR Include this in your sketch static const uint8_t LED_BUILTIN = 25 Then recompile
Very sorry, there don't have a LED for user in WIFI Kit 8...
We will fix it next version.
Blink:18: error: 'LED_BUILTIN' was not declared in this scope
digitalWrite(LED_BUILTIN, LOW); // Turn the LED on (Note that LOW is the voltage level
exit status 1 'LED_BUILTIN' was not declared in this scope