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Industrial 8-Channel Relay Module for Raspberry Pi Pico, Multi Protection - PiShop.us
MakerFocus 4 Channel Relay Board Module for Raspberry Pi 4B/3 Model B+
Keyestudio RPI 4channel-Relay 5V Shield for Raspberry Pi/ CE certification
Inland RPI 4-Channel Relay 5V Shield for Raspberry Pi/ CE Certification - Micro Center
Control Up To 65,280 Relays With Your Raspberry Pi! - Hackster.io
8 Relays Raspberry Pi 4A/120V 8-layer stackable HAT
32-Channel DPDT Signal Relay Controller with I2C Interface - IoT Devices & Sensors | Relay Controllers, Current Monitoring & Vibration Sensors
RELAYplate – Pi-Plates
Pi-SPi-8KO Raspberry Pi Relay Output Interface – Widgetlords Electronics
Raspberry Pi Relay Board | 101790 | Raspberry Pi Compatible Hat by www.smart-prototyping.com
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