Hello there, I'm Crazy Professor.With the development and expansion of Arduino cards, many development cards were produced. In the meantime, the Microchip PIC series was a bit off the agenda. Because there was no development platform.I have designed a development card that contains several communication protocols. In case of sponsorship, I will donate to the relevant institutions. This card can also be used on the arduino platform.PCB Specifications:* 100x100mm double layer,* Built-in RS232 circuit,* Built-in RS485 circuit,* Built-in MCP2515 + JA1050 CAN-BUS circuit,* Built-in 74HC595 Shift Register,* 8pcs LED,* FTI series USB to TTL converter,* Usb power supply,* Easy to use with plug-in terminal,* Easy circuit installation with female and male header,* Built-in 5V regulator,