Keyestudio W5500 ETHERNET DEVELOPMENT BOARD For Arduino DIY Project (WITHOUT POE)

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. Anal og 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

Source : https://www.keyestudio.com/keyestudio-w5500-ethernet-development-board-for-arduino-diy-project-without-poe-p0368.html
Author : becky@wiznet.io