Electronic brick of relay can be connected to digital I/O port, when the input of S port is low level, relay will be under ‘disconnect’state; when the input of S port is high level, relay will be under ‘connect’state. It can be connected in series to the

Electronic Brick - 5V Relay

Model: IM120710007

Regular Price: $2.90

Special Price $1.50

Availability: In stock

Quick Overview

Electronic brick of relay can be connected to digital I/O port, when the input of S port is low level, relay will be under ‘disconnect’state; when the input of S port is high level, relay will be under ‘connect’state. It can be connected in series to the LED lights, buzzer or even the loop of a small lamp so as to control the state of the switch.