Brand: uxcell Item Weight: 4 grams Style: Discreet Maximum Supply Voltage: 5.5 volts Measurement Range: 2.7 - 5.5 V Mounting Type: Surface Mount Product Name: Remote Control Receiver Module: VS1838B Operating Voltage: 2.7-5.5V Power Dissipation: 35MW Receiving Distance: Min: 10m Pins: 3 Pin Size: 21 x 2mm (L * Pitch) Body Size: 7 x 6 x 5mm (L * W * T) Total Length: 30mm Material: Plastic, Electrical Components Color: Black, Silver Tone Main Specifications * Operating Voltage: 2.7V - 5.5V * Receiving Frequency: 38kHz (Frequency used by many infrared remote controls) * Number of Pins: Generally 3 pins (VCC, GND, OUT) * Applications: Used to receive infrared remote control signals in home appliances such as TVs, air conditioners, and audio equipment, as well as in DIY electronics projects and robot construction. How to Use This component converts the light signal emitted from an infrared remote control into an electrical signal. * VCC: Connect to the positive side of the power supply (2.7V - 5.5V) * GND: Connect to the negative side (ground) of the power supply. * OUT: Signal output pin. Connect to the digital input pin of a microcontroller (such as Arduino) to read the signal sent from the remote control. Many remote control receiver modules output HIGH (H level) when no signal is received, and change to LOW (L level) according to the signal pattern of the remote control when a signal is received.