W5500 Ethernet Module
by WIZnet / clone
SKU: PSA-CMP-W5500
No reviews yetTypical India street price
₹250–₹500
Wired Ethernet when Wi-Fi labs fail — sockets in hardware.
Interface: SPI
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Concept
Hardwired TCP/IP chip so the MCU isn’t running a full network stack.
A little theory
SPI + CS. Ethernet2 / Ethernet3 libraries. Needs RJ45 MagJack (on module). In the classroom, treat W5500 Ethernet Module as a advanced part using SPI. Typical India street price is about ₹250–₹500. Always verify voltage and pin labels on your exact module — silk screens vary across clones. Start with a datasheet or trusted learn guide, power the part correctly, share GND with the MCU, and test with a simple blink/read sketch before building the full project. Measure voltages with a multimeter when something fails, and keep actuator current off the MCU regulator.
How it works in a project
Ethernet.begin(mac); server/client examples. Unique MAC per board.
Classroom & project use
- School LAN robots
- Local web dashboard without Wi-Fi
- Communication Modules classroom demo
Buying in India
Precautions
- Share a common GND with the microcontroller
- Verify polarity and voltage before powering the circuit
Specifications
| Chip | W5500 |
| Bus | SPI |
| Category | Communication Modules |
| Difficulty | Advanced |
| Voltage | 3.3–5V |
| Interface | SPI |
Pinout
VCC | GND | SCK | MISO | MOSI | CS (plus RST/IRQ if labelled)
