Xiongzai Technology Steamduino PIC18F46J50 main control board partial schematic diagram

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Proteus 8 Frofessional v8.9 SP2


I got this from my senior. It was originally intended to be used to make a writing robot, but later he changed it to Arduino UNO.


I couldn't find any information online, so I used a multimeter to simply test the connection of the part without silkscreen.


Connection

RD2/PMD2/RP19       USR_LED

RD3/PMD3/RP20       USB_LED

OSC1/CLKI/RA7       PRG_KEY


RC7/PMA4/RX1/DT1/SDO1/RP18 3.3V


RE0/AN5/PMRD        A4988_ENABLE

RE2/AN7/PMCS        A4988_MS1

RE1/AN6/PMWR        A4988_MS2

OSC2/CLKO/RA6 A4988_MS3

RD6/PMD6/RP23       STEP

RD7/PMD7/RP24       DIR


RC1/T1OSI/UOE/RP12  A4988_ENABLE

RE2/AN7/PMCS        A4988_MS1

RE1/AN6/PMWR        A4988_MS2

OSC2/CLKO/RA6 A4988_MS3

RD4/PMD4/RP21       STEP

RD5/PMD5/RP22 DIR


RA0/AN0/C1INA/ULPWU/PMA6/RP0 CURRENT_ADJ


Schematic

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Physical map

The 5V of miniUSB on the original board only divides a 3.3V voltage to RC7, which is a bit outrageous. I flew a line to supply 1117-3V3 to generate MCU working power.

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Reference address:Xiongzai Technology Steamduino PIC18F46J50 main control board partial schematic diagram

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