Features PROGRAMMABLE: The PWM control board is programmable, input PWM to control motor speed or lamp brightness, etc, with strong practicability. EQUIPMENT CONTROL: Output can control high power equipment, such as motor, LED lamp, bulb, miniature water pump, DC motor, solenoid valve, etc. RGB LIGHT BEAD: The control board is equipped with power indicator, drive RGB, R represents red, G represents green, and B represents blue. MULTIPLE INTERFACES: With fine workmanship, the PWM control module has multi interfaces, which is easy to connect, and adds product functions. EXCELLENT MATERIAL: The PWM controller board uses excellent electronic components to ensure stable performance and reliable operation. Specification: Item Type: PWM Control Board Power Supply Voltage: DC 3.3V-5V Mainboard Indicator: Power Indicator TTL Baud Rate: 9600 R G B: R represents red, G represents green, B represents blue Driving RGB: Applicable to driving single common cathode RGB lamp beads or multiple lamp beads in parallel R G B: Connect to 3 pins of RGB 3 colors LED GND: Connect to the common cathode of RGB + -: Input Power VCC: Connect to TTL 5V (connected to a board power supply port) RX: Connect to the TX end of TTL TX: Connect to the RX end of TTL GND: Connect to the GND end of TTL Package List:1 x PWM Control Board Note:Please note that the installation should be standardized. Package List 1 x PWM Control Board