brightness is now functional

Author: tkomde

ports/espressif/boards/m5stack_atoms3/board.c

@@ -123,7 +123,7 @@ void board_init(void) {
         60,             // native_frames_per_second
         true,           // backlight_on_high
         false,          // SH1107_addressing
-        50000           // backlight pwm frequency
+        200           // backlight pwm frequency
         );
 }