You can't go feeding an Arduino and LEDs with AC, they require regulated DC.
he ac went into a full bridge rectifier to turn it into dc
You can't go feeding an Arduino and LEDs with AC, they require regulated DC.The symbol trumps the description. If you want the description to win you have to use a simple box with a description and a part number.
But then it went through a transformer. DC can not go through a transformer.You have no resistor in series with the data line and no large capacitor across the LEDs.
the leds already have build in resistors for the data line,
they arnt transformers there are no buck converter symbols so i used a transformer and named them buck converters