Making LAN/Ethernet Relay Switch Using Arduino UNO
How to make LAN/Ethernet relay switch using Arduino UNO and ethernet shield
Arduino - Arduino UNO
Arduino - Arduino Ethernet Shield 2
Generic - Jumper wires
Generic - Relay Module
How to make LAN/Ethernet relay switch using Arduino UNO and ethernet shield. This is a simple tutorial, remote control over the LAN.
To control it, I used HTTP and JSON. This electronic circuit can be used as part of a larger system, IoT Internet of things.
This software supports two relays, but it's not a problem to increase their number. IP device is permanently assigned to 192.168.0.101. If you had more devices working on the same network, you'd have to remember about unique IP and MAC addresses.