RioRand 12V 4 Channel Relay Shield Module Expansion board For Arduino ARM PIC AVR DSP
The module is triggered, high trigger current less than 5mA, part of the 51 single-chip IO port output capability is weak, pull or increase the drive capability of the circuit.The advantages of the high drive control line disconnection, the load will not work, as security.Module features:1, Relay 12V DC power supply, control signals can be directly connected to the microcontroller IO port, you can also use 12V direct control relay.2, each relay has a normally open, normally closed contact group.3, the input control signal lines:VCC is connected to 12V DC positiveGND with 12V DC negativeIN3 IN4, IN1 IN2 is connected to control signals, 12V, high relay, low relay is switched off.4, power indicator, and 4-way relay working status indicator, patch.5, SMD Diode M7, reverse protection.6, the opposite of the circuit board to solder on the tin bold, to ensure reliable 10A.7, there are four screw holes of 3mm diameter, easy to install. Screw hole center spacing of 66mm X 41mm8, And compact size, easy installation. PCB size: 71mm X 46mm high 20mm9, the pins have black and yellow, were shipped.Package List:1 * 12V 4 Channel Relay Shield Module</BODY></HTML>