83-17990.

83-17990. is a 5V trigger relay module for Arduino and Raspberry Pi. A relay is an automatic control device where the input quantity (electricity, magnetism, sound, light, heat) reaches a certain value, and the output quantity will change in a jumping manner. In life, we often need to use weak electricity to control strong electricity, that is, the problem of small current to control high current, such as the use of Arduino controller to control high-power appliances such as fans. For beginners, in order to be safe, we will not use high-power electrical appliances in this experiment. Here we will use small LEDs or small LED lights to complete the demonstration experiment.

• New 5V relay module
• Can be used as a micro-controller development board module, can be used as home appliance control
• TTL control signal
• Control DC or AC signal, can control 220V AC load
• There is a normally open and a normally closed contact
• Power indicator
• There is a control indicator light, the suction is bright, the disconnection is not bright
• Transistor drive adds a relay coil to control the high impedance of the foot
• Control pin has a pull-down circuit to prevent the floating relay from malfunctioning
• 10A 250VAC and 10A 30VDC electrical parameters of relay