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How to connect two Arduino directly via Ethernet cable
How to create connection between two Arduino directly via Ethernet without router/AP?
Answer
To create communication between two Arduino directly via Ethernet, we need to:
- Use two Ethernet shield
- Use a crossover Ethernet cable
- Config static IP for both Ethernet shield. Gateway of this shield is the IP address of other shield. For example
| Arduino #1 (Ethernet Shield) | Arduino #2 (Ethernet Shield) | |
|---|---|---|
| IP address | 10.101.1.210 | 10.101.1.211 |
| Subnet mask | 255.255.255.0 | 255.255.255.0 |
| Gateway | 10.101.1.211 | 10.101.1.210 |
| DNS | 0.0.0.0 | 0.0.0.0 |
And then create a TCP connection between two Arduino: one Arduino acts as TCP server and the other acts as TCP client
For detail about TCP creation, please refer to communication between two Arduino via TCP
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