Alinan 4pcs 2 Channel 5V Relay Module Optocoupler Isolation Lo | Shop The World
From USA
NewAlinan
Alinan 4pcs 2 Channel 5V Relay Module with Optocoupler Isolation Low-Level Trigger Development Board Compatible with R3 MEGA 2560 1280 DSP ARM PIC AVR STM32
ℹ
Products from the USA may come with an input voltage of 110V–120V, requiring a step-down transformer. Check the device wattage to select the correct power converter.
•★Standard interface that can be controlled directly by microcontroller (compatible with 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic).
•★There is an isolation slot between the control area and the load area; genuine relays are used; there are power supply and relay action indications, which are on when they are on and off when they are disconnected; when there is a signal at the signal input end, the common end and the normally open end will be connected; it can be used as a microcontroller for development Board module, can be used as home appliance control.
•★Control DC or AC signal, can control 220V AC load; there is a normally open and a normally closed contact; the blue KF301 terminal is more convenient to connect the control line.
•★High-level triggering refers to a triggering method in which there is a voltage between the signal input terminal and the ground, which can be understood as a short-circuit triggering method between the signal input terminal and the positive pole of VCC.
•★Low-level triggering refers to the triggering method in which the voltage between the signal input terminal and the ground is OV, which can be understood as a method of short-circuit triggering between the signal input terminal and the negative pole of GND.
From USA
