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T-Relay 5V 8-Channel Relay Module for Arduino ESP32 Wireless Development Board with WIFI Bluetooth and Optocoupler Isolation

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ESP32 WiFi Bluetooth Single-Channel Relay Module, AC 220V Input, 30A Relay, UART, Arduino ESP-IDF Development Board

Keyestudio 4 channel 5V Relay Shield module for Arduino UNO R3

16 Channel Relay Shield Module DC 5V 12V 24V with Optocoupler LM2576 Microcontrollers Interface Power Relay For Arduino DIY Kit

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5V 12V 16 Channel Relay Module for arduino ARM PIC AVR DSP Electronic Relay Plate Belt optocoupler isolation

ESP8266 4 Channel Wireless WIFI Relay Module AC-DC Switching Power Supply Module ESP-12F Wifi Development Board For Arduino

ESP32‑S3 N16R8 WiFi BT Single‑Channel Relay Module Development Board DC5‑60V Compatible with ESP‑IDF for Arduino IDE ESP32 S3

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6 Channel Relay Module 5V 12V 24V Relay Board Shield With Optocoupler Isolation Support High and Low Level Trigger for Arduino

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1/2/4/6/8 Channel Relay Module 5V 12V 24V Relay Board Optocoupler Isolation Control Module for Arduino PLC Smart Home Automation

5V 12V 24V 1 Channel Relay Module Low Level for SCM Household Appliance Control for Arduino 1 Way Relays DIY Electronic Kit

5V 12V 16 Channel Relay Module Interface Board For Arduino PIC ARM DSP PLC With Optocoupler Protection LM2576 Power

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Single‑Channel Relay ESP32‑S3 N16R8 WiFi Bluetooth Module Development Board DC5‑60V Compatible with ESP‑IDF for Arduino IDE

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Relay Module 8 Channel 5V 12V 24V Board Shield With Optocoupler Isolation Support High and Low Level Trigger for Rasp Pi Arduino

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2pcs 1 Channel Relay Module Delay Off Timer Cycle Trigger Switch for Arduino Home Automation LED Control

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ABVG-Mini 1 Channel 12V DC DPDT Relay Module(5 Pack), For Switch PCB Board For Arduino Raspberry Pi

HDL 3.3V-5V 1-Channel Relay Module Adjustable Resistance Sensor for Arduino Development Board

10pcs 5V 12V 1 One Channel Relay Module Low Level For SCM Household Appliance Control For arduino DIY Kit

5V 1 One Channel Relay Module Low Level for SCM Household Appliance Control for arduino DIY Kit

DC 12V 1-Channel Relay Module with Optocoupler Isolation, Supports High or Low Level Trigger, Compatible with Arduino and D

KY-019 5V 12V 1 Channel Relay Module for Arduino Raspberry Pi

5Pcs Keyes 1 Channel Relay Module 5V Shield AVR ARM PIC DSP SRD-05VDC-SL-C With 20CM 20Pin Dupont Cable for Arduino

8 Channel 12V 24V Relay Shield Module RS485 PLC IO Expanding Board For Arduino NANO V3.0

ABKQ-4X Wireless WIFI 4 Channel Relay Module ESP-12F Wifi Development Board For Arduino AC/DC 5V/8-80V Power Supply