DFRduino Ethernet Shield V3.0 - W5100S (Support Mega and Micro SD)
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Description
The DFRduino Ethernet Shield V3.0 connects your Arduino to the internet via an RJ45 cable using the WizNet W5100S controller. Featuring hardwired TCP/IP protocols and onboard Micro SD support, it suits students, hobbyists, and makers building reliable wired IoT projects.
Upgraded W5100S controller
Hardware version V3.0 upgrades the core chip to the WizNet W5100S, delivering lower power consumption, reduced operating heat, and higher performance.
Hardwired TCP/IP network stack
The integrated hardware stack includes MAC and PHY layers alongside support for auto-negotiation. It handles four independent hardware sockets simultaneously with 16KB of internal TX and RX memory buffers for packet processing.
Arduino and Mega compatibility
The expansion board plugs directly onto Arduino UNO and Mega series boards. The host microcontroller communicates with both the W5100S chip and the onboard SD card over the SPI interface using the ICSP pins.
Operating specifications
The board operates at 5V with an industrial-grade operating temperature range of -40 deg C to 85 deg C. Its physical footprint measures 70 x 55 x 30 mm.
Downloads & documentation
Specifications
| Operating Voltage | 5V |
| Operating Temperature | -40℃ ~ 85℃ |
| Dimension | 70x55x30mm (2. 76x2. 15x1. 18") |
In the box
| DFRduino Ethernet W5100S Expansion Board | 1 |
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