README.md

Ocotpus_Max_EZ Pinout table

Peripheral	Function	Pin name	Pin No.	Comment
Motor-1	STEP	PC13	7	All the GPIO related to stepper are converted to 5V output to driver (including STEP, DIR, EN, CS/UART, TMC SPI)
	DIR	PC14	8
	EN	PE6	5
	CS/UART	PG14	129
Motor-2	STEP	PE4	3
	DIR	PE5	4
	EN	PE3	2
	CS/UART	PG13	128
Motor-3	STEP	PE1	142
	DIR	PE0	141
	EN	PE2	1
	CS/UART	PG12	127
Motor-4	STEP	PB8	139
	DIR	PB9	140
	EN	PB7	137
	CS/UART	PG11	126
Motor-5	STEP	PB5	135
	DIR	PB4	134
	EN	PB6	136
	CS/UART	PG10	125
Motor-6	STEP	PG15	132
	DIR	PB3	133
	EN	PD5	119
	CS/UART	PG9	124
Motor-7	STEP	PD3	117
	DIR	PD2	116
	EN	PD4	118
	CS/UART	PD7	123
Motor-8	STEP	PA10	102
	DIR	PA9	101
	EN	PA15	110
	CS/UART	PD6	122
Motor-9	STEP	PA8	100
	DIR	PC7	97
	EN	PC9	99
	CS/UART	PG8	93
Motor-10	STEP	PG6	91
	DIR	PC6	96
	EN	PC8	98
	CS/UART	PG7	92
TMC SPI (spi4)	MISO	PE13	66	LCD-FPC SPI, Onboard SD card, expansion SPI pin header and TMC driver SPI, 4 features multiplexing the same hardware SPI4, and is converted to 5V to TMC driver
	MOSI	PE14	67
	SCK	PE12	65
Heater	E0	PF6	18	is converted to 5V to MOSFET with flyback protection
	E1	PA0	34
	E2	PF9	21
	E3	PF7	19
	HB(heated bed)	PF5	15
Temperature	TH0	PB0	46	4.7KOhm 0.1% pull up resistor for NTC100K,etc. 2.2KOhm 0.1% pull up resistor for PT1000 by jumper. with thermistor protection circuit
	TH1	PC5	45
	TH2	PC4	44
	TH3	PA7	43
	THB	PB1	47	with thermistor protection circuit
Endstop	M1-STOP	PF0	10	Share with M*-DIAG, And high level exceeding 5V are clamped to 5V by diodes
	M2-STOP	PF2	12
	M3-STOP	PF4	14
	M4-DET	PF3	13
	M5-DET	PF1	11
	M6-DET	PC15	9
2 wire FAN	FAN0	PA6	42	is converted to 5V to MOSFET with flyback protection
	FAN1	PA5	41
	FAN2	PA4	40
	FAN3	PA3	37
4 wire FAN4	control	PA1	35	is converted to 5V
	tachometer	PC3	29	isolated by optocoupler
4 wire FAN5	control	PF8	20	is converted to 5V
	tachometer	PC1	27	isolated by optocoupler
4 wire FAN6	control	PA2	36	is converted to 5V
	tachometer	PC2	28	isolated by optocoupler
Misc	RGB1(Neopixel/WS2812)	PE10	63	is converted to 5V
	RGB2(Neopixel/WS2812)	PE9	60
	PS-ON	PF13	53
	PWRDET	PF12	50
	OnBoard LED	PA14	109
BLTouch	SERVOS	PB14	75
	PROBE	PB15	76
Proximity switch	PROBE	PF11	49	isolated by optocoupler, PNP or NPN can be selected by jumper
FWS(hall_filament_width_sensor)	adc1	PC0	26
	adc2	PF10	22
Onboard EEPROM(24C32)	SCL2	PB10	69
	SDA2	PB11	70
FDCAN1	RX	PD0	114
	TX	PD1	115
TFT UART3	RX	PD9	78
	TX	PD8	77
USB-Device	OTG_FS_DM	PA11	103
	OTG_FS_DP	PA12	104
LCD-FPC(EXP1 + EXP2)	5V	5V		EXP1_10
	GND	GND		EXP1_9
	LCD_D7	PE15	68	EXP1_8
	LCD_D6	PD10	79	EXP1_7
	LCD_D5	PD11	80	EXP1_6
	LCD_D4	PD12	81	EXP1_5
	LCD_RS	PD13	82	EXP1_4
	LCD_EN	PD14	85	EXP1_3
	BTN_ENC	PD15	86	EXP1_2
	BEEPER	PG2	87	EXP1_1
	RESET	RESET	25	EXP2_8
	SD_DETECT	PG3	88	EXP2_7
	MOSI	PE14	67	EXP2_6. LCD-FPC SPI, Onboard SD card, expansion SPI pin header and TMC driver SPI, 4 features multiplexing the same hardware SPI4, and is converted to 5V to TMC driver
	BTN_EN2	PG4	89	EXP2_5
	SD_SS	PE11	64	EXP2_4
	BTN_EN1	PG5	90	EXP2_3
	SCK	PE12	65	EXP2_2. LCD-FPC SPI, Onboard SD card, expansion SPI pin header and TMC driver SPI, 4 features multiplexing the same hardware SPI4, and is converted to 5V to TMC driver
	MISO	PE13	66	EXP2_1. LCD-FPC SPI, Onboard SD card, expansion SPI pin header and TMC driver SPI, 4 features multiplexing the same hardware SPI4, and is converted to 5V to TMC driver
OnboardSD(spi4)	SD-CS	PB12	73
	SD-DET	PB13	74
	MISO	PE13	66	LCD-FPC SPI, Onboard SD card, expansion SPI pin header and TMC driver SPI, 4 features multiplexing the same hardware SPI4, and is converted to 5V to TMC driver
	MOSI	PE14	67
	SCK	PE12	65
Expansion SPI pin header(spi4)	SPI4-CS	PF14	54
	MISO	PE13	66	LCD-FPC SPI, Onboard SD card, expansion SPI pin header and TMC driver SPI, 4 features multiplexing the same hardware SPI4, and is converted to 5V to TMC driver
	MOSI	PE14	67
	SCK	PE12	65
WIFI(ESP3D/RRF)	ESP-RST(espResetPin)	PB2	48
	ESP-IO0(espDataReadyPin)	PG0	56
	ESP-IO4(TfrReadyPin)	PF15	55
	ESP-RX(UART7)	PE7	58
	ESP-TX(UART7)	PE8	59
	ESP-CS	PG1	57
	ESP-MOSI-SPI3	PC12	113
	ESP-MISO-SPI3	PC11	112
	ESP-CLK-SPI3	PC10	111