Circuit diagram
VCC-USB
C3
10nF
FP1
FERRITE
R5 100
1
2
3
4
5
GND
ID
D+
D-
VBUS
CN2
USB MINIB
USB-DET
R6
100K
USB-D_N
USB-D_P
USB-ID
VCC-3.3AVCC
FP3
C9
100nF
C8
2.2uF
C2
2.2uF
VCC-3.3
R8
22K
E1
10uF
R7
120K
VCC-1.8
VCC-1.8
R9
12K1
1
2
3
5
4
Vin
GND
EN ADJ
Vout
U2
AP7331-ADJ
VCC-1.8VREF-1.8
FP2
C4
2.2uF
C7
100nF
T5
R1
10K
C1
100nF
R2
220
RST#
RESET
VCC-3.3
CN1
VCC-IN
C10
100nF
C11
100nF
C12
100nF
C13
100nF
VCC-3.3 VCC-3.3 VCC-3.3 VCC-3.3 VCC-3.3
C14
100nF
VCC-3.3
C39
100nF
VCC-3.3
C40
10uF
J1
VCC-SERVO
VCC-USB
VCC-IN
SN74LVCC3245A
X1
25MHz
C6
22pF
C5
22pF
R3
4K7
R4
4K7
VCC-3.3
C21
10pF
C22
10pF
X2
32.768KHz
AVCC
30
29
28
27
34
33
58
57
56
55
54
53
52
46
36
35
42
43
44
45
37
50
9
48
49
11
12
32
72
69
68
67
66
65
64
63
4
3
78
77
24
23
18
17
16
15
14
13
5
6
7
8
10
79
80
1
2
22
21
20
19
62
61
60
59
38
39
40
41
47
71
31
51
70
26
25
76
75
74
73
100pin TQFP
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
PE11
PE10
PE6
VBAT
PC13/TAMPER_RTC
PC14/OSC32_IN
PA10
PA9
PA8
PD9
PE13
PE12
PB13
PB14
PB15
PD8
PE14
PE15
PB5
PB4
PB3
PB7
PD7
PD6
PE5
PE4
PE1
PE0
PB9
PB8
BOOT0
PB6
OSC_IN
PA0-WKUP
VDDA
VREF+
GNDA
VDD
PC3
PA12
PA11
PB12
PC8
NRST
VDD
GND
PE7
PDR_ON(RFU)
VDD
PE2
PE3
PA2
PA1
VCAP
VDD
PC9
PD13
PB10
PB11
PD10
PE8
PB2
PD11
PD14
PD5
PC2
PC1
PC0
PB1
PE9
PD12
PC7
OSC_OUT
PC15/OSC32_OUT
PD15
PC6
PA13
PC10
PA14
VCAP
GND
VDD
PA15
PC11
PC12
PD0
PA6
PA5
PC4
PA7
PC5
PB0
GND
VDD
PA3
PA4
PD1
PD2
PD3
PD4
STM32F407VGT6
U1
R26
100K
C38 2.2uF
C20
2.2uF
R12100K
VCC-3.3
TCK-SWCLK
TMS-SWDIO
6
8
109
7
5
1 2
3 4
CN3
JTAG
RST#
VREF-1.8
PE7_CS
SPI1_SCK
SPI1_MISO
SPI1_MOSI
PA15_CS
SPI3_SCK
SPI3_MISO
SPI3_MOSI
USB-DET
USB-D_N
USB-D_P
USB-ID
UART3_RX
UART3_TX
UART6_RX
UART6_TX
I2C1_SCL
I2C1_SDA
UART4_RX
UART4_TX
UART2_TX
UART2_RX
I2C2_SCL
I2C2_SDA
ADC1_IN10
ADC1_IN11
ADC1_IN12
ADC1_IN13
ADC1_IN14
ADC1_IN15
ADC1_IN8
RST#
TCK-SWCLK
TMS-SWDIO
PD0_CS
ADC1_IN4
PE8_CS
PE2_INT
PE3_INT
PE4_INT
PC13_INT
PE9_PWM
PE11_PWM
PE11_PWM
PE9_PWM
PB9_PWM
PB8_PWM
PC9_PWM
PC8_PWM
PD15_PWM
PD14_PWM
PD13_PWM
PD12_PWM
PA11_PWM
PC9_PWM
PC8_PWM
PD15_PWM
PD14_PWM
PD13_PWM
PD12_PWM
PA11_PWM
PE13_PWM
PE13_PWM
ADC1_IN14
ADC1_IN15
ADC1_IN8
ADC1_IN4
R29
2K2
R30
2K2
PE5_PWM
PE6_PWM
PE5_PWM
PB4_PWM
PB3_PWM
PB4_PWM
PA8_RST
PA9_RST
PA10_RST
PA12_RST
T1
R11
10K
C19
100nF
R13
220
VCC-3.3
T2
R16
10K
C27
100nF
R17
220
VCC-3.3
T3
R20
10K
C32
100nF
R21
220
VCC-3.3
T4
R24
10K
C37
100nF
R25
220
VCC-3.3
PD6_SW
PD5_SW
PD4_SW
PD3_SW
PD6_SW
PD5_SW
PD4_SW
PD3_SW
R14
100K
R18
100K
R22
100K
R27
100K
R15
100K
R19
100K
R23
100K
R28
100K
PA11_PWM_5V
PC9_PWM_5V
PC8_PWM_5V
PD15_PWM_5V
PD14_PWM_5V
PD13_PWM_5V
PD12_PWM_5V
PE13_PWM_5V
PA11_PWM_5V
PC9_PWM_5V
PC8_PWM_5V
PD15_PWM_5V
PD14_PWM_5V
PD13_PWM_5V
PD12_PWM_5V
PE13_PWM_5V
HD1
M3X4
HD2
M3X4
PE10_DIG
PE12_DIG
PE14_DIG
PE15_DIG
PE10_DIG
PE12_DIG
PE14_DIG
PE15_DIG
1
2
3
4
5
6
7
8
9
10
11
12 13
14
VCCA
DIR
A1
A2
A3
A4
A5
B3
B4
VCCB
NC
OE
B1
B2
SN74LVCC3245A
A6
A7
A8
GND
GND
B6
B7
B8
GND
B5
15
16
17
18
19
20
21
22
23
24
U3
C16
100nF
VCC-3.3
C15
100nF
PC9_PWM
PC8_PWM
PD15_PWM
PD14_PWM
PD13_PWM
PD12_PWM
PA11_PWM
PE13_PWM
VCC-SERVO
VCC-SERVO
VCC-SERVO
HD3
M2X5
VCC-3.3
R31
10K
R32
10K
R33
10K
R34
10K
VCC-3.3
R35
100K
R36
100K
R37
100K
R38
100K
LD4E LD2C LD1BLD3A
VCC-3.3
E2
10uF
E3
10uF
R10
2K2
3
1
2
GND
Vin
Vout
REG1
LD29080DT33
VCC-USB
LD5A
HD4
M2x2
VCC-USB
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
MIKROBUS1
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
MIKROBUS2
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
MIKROBUS3
AN
RST
CS
SCK
MISO
MOSI
3.3V
GND
PWM
INT
RX
TX
SCL
SDA
5V
GND
MIKROBUS4
SPI1_SCK
SPI1_MISO
SPI1_MOSI
SPI1_SCK
SPI1_MISO
SPI1_MOSI
SPI3_SCK
SPI3_MISO
SPI3_MOSI
SPI3_SCK
SPI3_MISO
SPI3_MOSI
I2C2_SCL
I2C2_SDA
I2C2_SCL
I2C2_SDA
I2C1_SCL
I2C1_SDA
I2C1_SCL
I2C1_SDA
VCC-3.3 VCC-3.3 VCC-3.3 VCC-3.3
ADC1_IN10 ADC1_IN11 ADC1_IN12 ADC1_IN13
UART2_TX
UART2_RX UART4_RX
UART4_TX
UART3_RX
UART3_TX
UART6_RX
UART6_TX
PA15_CSPD0_CSPE7_CS PE8_CS
PE2_INTPE3_INTPE4_INTPC13_INT
PB8_PWMPB9_PWMPE6_PWM PB3_PWM
PA8_RST PA9_RST PA10_RST PA12_RST
VCC-USB VCC-USB VCC-USB VCC-USB