DC 5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry

No custom circuit needed
20K+ sold4.8
$1.09
Dollar Express
"Works with ESP32 projects"
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"Works with ESP32 projects"

ESP8266 ESP-01S 5V WiFi Relay Module Things Smart Home Remote Control Switch for Arduino Phone APP ESP01S Wireless WIFI Module

Flash firmware directly
5K+ sold4.7
FREEwith any purchase

5V 12V 24V One 1 Channel Relay Module Board Shield with optocoupler Support High and Low Level Trigger

USB & industrial power compatible
2K+ sold4.9
FREEwith any purchase

5V Relay Module XRY DC 5V 12V 24V 1Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for arduino Raspberry Pi

Standard size fits
4K+ sold4.9
$0.71
Extra 2% off with coins
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1 2 4 8 Channel 5V 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger for Arduino Electronic DIY

USB & industrial power compatible
3K+ sold4.8
$1.09
$1.35 saved
New shoppers - $1.35Lowest price in 90 days
Adaptable for all
Free shipping
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Adaptable for all
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Stlxy R3 Mega 4-channel 5V relay shielding module, four-way relay control board expansion board Arduino

5 V · General Purpose · DC
4 sold
$20.25
($4.05/pc)
$28.20 saved
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2 channel Relay Module 5V 12V 24V High and Low Level Trigger Relay Control With Optocoupler Two Way Relays DC 5 V 12 V 24 V Volt

Mounts easily with compact shape
185 sold4.6
FREEwith any purchase

5V relay module 4 channel DC 5V 12V 1 2 4 6 8 way relay module for arduino 1 2 4 6 8 channel relay module with optocoupler High and Low Level Trigger

Arduino Compatible
1K+ sold4.8
$1.09
$0.78 saved
New shoppers - $0.78Lowest price in 90 days
Free shipping
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DC 5V 12V Time Delay Relay NE555 Time Relay Shield Timing Relay Timer Control Switch Car Relays Pulse Generation Duty Cycle

Space-efficient design
783 sold4.8
FREEwith any purchase

DC 5V-48V 10A Automatic Power Changeover Relay Module YX850 Battery Backup UPS Switch for LED Load Emergency Transfer Board

Auto battery backup
119 sold4.9
$1.09
Dollar Express
Fastest delivery in 6 days
Top selling on AliExpress
Fastest delivery in 6 days

1-10pcs Relay HK19F-DC3V-SHG HK19F-DC5V-SHG HK19F-DC6V HK19F-DC12V HK19F-DC24V HK19F 3V 5V 9V 12V 24V 8PIN 1A Relays

Bistable and on/off control
55 sold5
$1.09
$3.48 saved
New shoppers - $3.48 $1.04 each, ≥ 2 piecesExtra 1% off with coins
Fastest delivery in 6 days
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5V Relay Module 1-5Pcs DC 5V 9V 12V 24V 1 Channel Relay Module With Optocoupler Shield Board High Low Level Trigger Power Supply Module Arduino

High/low signal support
3K+ sold4.8
$1.09
$1.58 saved
New shoppers - $1.58Extra 2% off with coins
"Compact and small size"
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