● 17 min readShowdown: Uno R4 vs Uno R3 vs Nano
Welcome to Vol. 12 of The Probots Showdown. Three boards. Three price points. Three very different futures for your project.Should you stick with the
Read Article →Relays are used to control high-power loads through microcontrollers. This 4-Channel Relay Module is a plug-and-play shield that can control up to 4 loads - AC Lights, Fans, Pumps, high-power DC Motors, Lights, etc. using an Arduino UNO.
Relays control high-power loads that cannot be driven directly from a microcontroller. This module has onboard 4 Relays to control up to 4 individual loads like - AC Fans, Lights, Motors, Pumps, DC Motors etc. The loads can be turned on by providing 5V at the GPIO pins on an Arduino. The module comes designed as a shield for the UNO which requires no external wiring, or connections between the Arduino and the relay. Simple and Easy plug-and-play operation helps you get started quickly. Great for building industrial automation, home automation & robotics projects.
Whenever you want to control a high-power load from a microcontroller, you will have to add a driver in between to switch the loads based on the low-power signal from the microcontroller, this module does exactly that and makes it easy for you to integrate it in your project. Controlling loads is as simple as turning on digital GPIO pins on your Arduino. It is compatible with the Arduino UNO, Mega, and all other development boards with the Arduino form factor which works on 5V DC. The relays operate on 5V from the Arduino and require no additional power input.
Relays also offer another advantage - isolation between load and signal voltages. Single there is no electrical connection between the load circuit and the microcontroller circuit, any malfunctions on the load voltage will not affect the microcontroller and vis versa.
Relay Terminals: Terminal pins with high-power ratings can used to connect loads to the device. The 1st foot NO is a normally open pin, the NC pin is normally closed, and COM is common, i.e., when the relay is not driven, NOx and COMx open between two pins, NCx and COMx connection; When the relay (x) control signal pin is high drive relays, NOx and COMx connection open between NCx and COMx.
Features:
Relay Shield Interfaces:
Package Includes :
Specification:
This video describes the tutorial to use the 4 channel relay shield with Arduino which will not be included in the package
| Operating Voltage: | 5 V |
|---|---|
| Max Current: | 3 A |
| Number of Channels: | 4 Channel |
| Trigger Type: | High Level |
| Isolation: | Not applicable |
| Interface Type: | GPIO |
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Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in
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