Parameters
1.Main Chip:ATMEGA328 microcontroller
2.USB power supply:5v
3.external power:7-12v,(9v recommended)
4.digital input/output pins: 14(of which 6 pins support PWM)
5.analog input pin: 6
6.built-in flash memory:32K
7.SRAM: 2k
8.EEPROM:1K
9.clock frequency:16MH
10.TCP/IP Ethernet controller W5500、MicroSD card mount(TF card)、MicroUSB
Related Introduction
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
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