Mikroe CLICKER 4 for STM32 User Manual page 12

A lot of the host MCU pins are routed to two 1x23 pin headers, making them
available for further connectivity. In addition to MCU pins, some additional
peripheral pins are also routed to this header.
RST
VREF
5V
PWR
3.3V
RTC
GND
I1
I2
INTERRUPT
I3
I4
I5
A1
A2
ANALOG
A3
A4
A5
D1
D2
D3
DIGITAL
D4
D5
D6
D7
1
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
PWM INTERRUPT I2C UART ANALOG SPI PWR DIGITAL
24.
CS1
25.
SCK1
26. SDI1
27.
SDO1
SPI
28.
CS2
29.
SCK2
30. SDI2
31.
SDO2
32.
SCL1
33. SDA1
I2C
34.
SCL2
35.
SDA2
36.
RX1
37. TX1
UART
38.
RX2
39.
TX2
40.
P1
41. P2
PWM
42.
P3
43.
P4
44.
P5
45.
CAN-RX
CAN
46.
CAN-TX
Figure 7: 1x23 pin header view
CAN
CLICKER 4 for STM32 U S E R M A N U A L