KEYESTUDIO W5500 Ethernet Control Board for Arduino, Microcontroller+Ethernet/Micro SD Shield+microUSB(Without POE)
<b>Parameters</b><br> 1.Main Chip:ATMEGA328 microcontroller <br> 2.USB power supply:5v <br> 3.external power:7-12v,(9v recommended) <br> 4.digital input/output pins: 14(of which 6 pins support PWM) <br> 5.analog input pin: 6 <br> 6.built-in flash memory:32K <br> 7.SRAM: 2k <br> 8.EEPROM:1K <br> 9.clock frequency:16MH <br> 10.TCP/IP Ethernet controller W5500ã€MicroSD card mount(TF card)ã€MicroUSB <br> <br> <b>Related Introduction</b><br> <b>About Chip: </b><br> 1.ATMEGA328P-AU<br> 2.Atmega16U2 <br> USB to serial chip <br> 3.AMS1117 <br> 4.5V and 3.3V stabilivolt chip <br> 5.W5500 network chip <br> <br> <b>About Interface: </b><br> 1. ICSP interface <br> Program firmware to ATMEGA328P-AU <br> 2. Digital interface D0-D13 <br> Serial communication:D0(RX) and D1(TX) <br> External interruption:D2(interrupt 0)〠D3(interrupt 1) <br> PWM interface:D3ã€D5ã€D6ã€D9ã€D10 ã€D11 <br> SPI communication:D10(SS)ã€D11(MOSI)ã€D12(MISO)ã€D13(SCK)<br> 3. ICSP interface<br> Program firmware to Atmega16U2 <br> 4. USB port <br> For program download or serial debugging<br> 5. DC power connector<br> Access to 7V-12V voltage <br> 6. Power output port <br> Output 3.3V or 5V,for external power supply or common ground handle <br> 7. Analog interface A0-A5 <br> IIC communication:A4(SDA) and A5(SCL) <br> Also can be used as digital interface:A0(D14)ã€A1(D15)ã€A2(D16)ã€A3(D17)ã€A4(D18)ã€A5(D19)<br> 8. Network connector <br> RJï¼45 network port <br> <br> <b>About Component:</b><br> 1.reset button <br> 2.16MHz crystal oscillator <br> 3.25MHz crystal oscillator <br>