Transformer changes electricity from high to low voltage or low to high voltage using two properties of electricity. In an electric circuit, there is magnetism around it. Second, whenever a magnetic field changes (by moving or by changing strength) a voltage is made.
Relay high quality songle relay single pole double throw Optical coupling isolation, good anti-interference Low suction, high level release Vcc for the power to the system jd_vcc for the relay power Relay output: dc 30v/10a exchange 250v/10a
4-channel relay control board module with optocoupler, 4 way relay module for arduino 4-channel relay output modules, relay output contacts 250A 10A. Input IN1, IN2, IN3, IN4, the signal line LOW effective. VCC, GND power input, can relay a separate power supply relay power input of JD-VCC.
HT12E is an encoder integrated circuit of 212 series of encoders. They are paired with 212 series of decoders for use in remote control system applications. It is mainly used in interfacing RF and infrared circuits. The chosen pair of encoder/decoder should have same number of addresses and data format.