Note:There two choice to choose, W5500 board and W5500 shield ,please take an eye on of it ,make sure that you are choosen what you want!!!

Related Introduction About W5500 Development board

About Chip:

1. ATMEGA328P-AU

2. Atmega16U2

USB to serial chip

3. AMS1117

4. 5V and 3.3V stabilivolt chip

5. W5500 network chip

About Interface:

1. ICSP interface

Program firmware to ATMEGA328P-AU

2. Digital interface D0-D13

Serial communication：D0(RX) and D1(TX)

External interruption：D2（interrupt 0）、 D3（interrupt 1）

PWM interface：D3、D5、D6、D9、D10 、D11

SPI communication：D10(SS)、D11(MOSI)、D12(MISO)、D13(SCK)

3. ICSP interface

Program firmware to Atmega16U2

4. USB port

For program download or serial debugging

5. DC power connector

Access to 7V-12V voltage

6. Power output port

Output 3.3V or 5V，for external power supply or common ground handle

7. Analog interface A0-A5

IIC communication：A4(SDA) and A5(SCL)

Also can be used as digital interface：A0(D14)、A1(D15)、A2(D16)、A3(D17)、A4(D18)、A5(D19)

8. Network connector

RJ－45 network port

About Component:

1. reset button

2. 16MHz crystal oscillator

3. 25MHz crystal oscillator

Related Introduction About W5500 Network Shield

Special note: We used version 1.5.6 of the IDE during testing, which is not compatible with other versions of the IDE.

Keyestudio W5500 network shield comes with W5500 network module as core.
It can make as simple Web server, or write and read the High/Low level of digital pins, or analog value of analog pins via network control.It is compatible with both keyestudio UNO R3 and Mega 2560 R3 development board.
When using, stack the W5500 shield onto UNO board, and upload the program to control board, which can make a simple Web server.
You can quickly make your controller access to internet to build your network application.At the same time, it also supports mini SD card(TF card, maximum storage 1G) read and write.You can direct stack the W5500 Network shield onto control board, or stack other expansion boards on this Network shield.The shield has four 3mm fixing holes, easy to mount on any other devices
Technical Parameters

Input voltage: DC 5V
Working voltage: DC 3.3V
Working current: about 380mA
Maximum power: 3W
Working temperature: -55℃ ~ +75℃
Network transformer interface type: RJ-45
Female header pitch: 2.54mm
mini SD card/TF card storage: Maximum 1G
TF socket: self-popping
Fixed hole diameter: 3mm
Dimensions: 65mm*50mm*27mm
Weight: 25g

W5500 full hardware TCP/IP protocol stack network chip

Support high speed SPI bus (SPI mode 0, 3);
Support hardware TCP/IP protocol: TCP, UDP, ICMP, IPv4ARP, IGMP, PPPoE;
Embedded 10/100Mbps Ethernet physical layer;
Support auto answer (full duplex / half duplex mode);
Multiple indicator signal outputs (full/half duplex);
Support 8 independent ports to connect at the same time;
Internal 32K byte memory for TX/RX buffer;
Support sleep mode and network wake-up;
3.3V working voltage, I/O port can withstand 5V voltage
Ultra small 48P/N LQFP lead-free package

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