SainSmart Mega2560 Ethernet Shield
Best networking solution for hobbyists building connected Arduino projects.
This is the essential bridge for turning standalone microcontrollers into networked devices. While it adds a bit of bulk to your stack, the reliable W5100 chip and integrated SD storage make it the most straightforward way to get your projects talking to the internet.
$24.99
Who it's for
- Makers building complex systems with many sensors and actuators
- Developers needing quick internet connectivity for remote data logging
- Students and hobbyists seeking affordable, high-capacity hardware
Who should skip it
- Designers creating compact, portable, or space-constrained enclosures
- Users requiring guaranteed compatibility and official hardware support
- Absolute beginners intimidated by complex network programming
Performance breakdown
Network Connectivity
Wiznet W5100 chip provides reliable, stable TCP and UDP socket connections.
Stacking Compatibility
Long wire-wrap headers make layering multiple shields simple and frustration-free.
Processing Overhead
The 16 MHz clock handles basic network tasks without breaking a sweat.
Storage Integration
Onboard Micro SD slot adds essential logging capacity for remote projects.
I/O Versatility
Massive pin count offers immense flexibility for complex sensor-heavy builds.
Circuit Stability
Integrated transformer buffer ensures cleaner signals during high-traffic network operations.
Key Specs
Microcontroller
ATmega2560
Operating Voltage
5V
Input Voltage (recommended)
7-12V
Digital I/O Pins
54 (15 PWM outputs)
Analog Input Pins
16
Flash Memory
256 KB
SRAM
8 KB
Dimensions
70mm x 54mm x 24mm
Know before you buy
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