030908 Serial Port TTL 4-CH Relay Controler Module w/ Protective IC - Black + Blue + Green HDD & Enclosures 2mm LED Bulb Qty 6

2mm LED Bulb Qty 6 Other Features Resolution: 320x240 pixels (QVGA)

com/CDDriver/CD/sku

Unit Material PCB+Alloy Chipset MEGA 2560 English Manual / Spec Yes Download Link http://pan

Frequency meter display

2 x RGB LED 8mm common-anode

030908 Serial Port TTL 4-CH Relay Controler Module w/ Protective IC - Black + Blue + Green HDD & Enclosures 2mm LED Bulb Qty 6Color Others, Brand N A Model 030908 Quantity 1 Piece Material CCL + component English Manual Spec Yes Other Features With built in 3. 3~5V switching circuit; with protective IC and normally open closed contact; strong drive force with 4 CH 250V 10A; with LED indicator; supports cascade connection; with built in 3. 3V stabivolt output; with bluetooth serial port and RF serial port to choose from to control PC or cellphone wirelessly. Instructions: FF