4 Channel Wireless Remote Control Kit

4 channel on/off remote control. Press the button and GPIO will go high , depress it will go low.  Includes: 1 x 4 channel remote (battery included) 1 x 4 channel receiver Specifications 1. Remote control Operating voltage: DC12V (27A/12V battery x1) Operating Current: 10mA @ 12V Radiated power: 10mw @ 12V Modulation mode: ASK (Amplitude Modulation) Transmitting frequency: 315MHZ (SAW frequency stabilization) Transmission distance :50-100M (Open field the receiver sensitivity -100dbm) Encoder types: fixed code The frequency of this product is 315 mhz 2 Decoding receiver board The operating voltage DC5V, receiver sensitivity is-98db. Leg 7 bits, respectively, VT, D3, D2, D1, D0, the +5 V and GND. VT is a valid signal high output pin Upon receiving a valid signal, the pin output high, may also drive the relay. Size: 6.6*22*41mm There are four buttons on the remote control, and respectively correspond to the four data bits to the receiving board output pin D0, D1, D2, and D3 of. Press