add C5 to ARDUINO RMT Blink example

Author: Jason2866

examples/arduino-rmt-blink/platformio.ini

@@ -19,6 +19,13 @@ board = esp32-c3-devkitm-1
 build_flags = -DBUILTIN_RGBLED_PIN=8
               -DNR_OF_LEDS=1
 
+[env:esp32-c5]
+platform = espressif32
+framework = arduino
+board = esp32-c5-devkitc-1
+build_flags = -DBUILTIN_RGBLED_PIN=27
+              -DNR_OF_LEDS=1
+
 [env:esp32-c6]
 platform = espressif32
 framework = arduino