Datasheet Link: Gyd-9e

void loop() Roll: "); Serial.println(roll);

: Used for brightness control; if not used, the board will typically operate at maximum brightness. Purchasing Information gyd-9e datasheet

: Often bundled with 535mm LED strips for 24-inch monitor replacements. Voltage Range : Generally operates on a wide input range, typically void loop() Roll: "); Serial

: Engineered to provide reliable power to LCD TV LED strips. Dimensions : Approximately 69mm x 19mm void loop() Roll: ")

The "on/off" switch, triggered by 3.3V to 5V from the monitor’s main board.