Specifications

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P2
ANT
RF signal/ANT
P3
GND
Ground
P4
RST
Reset ,
low active
P5
NC
P6
P1N/I2S_SDI/7816_TRX/D[3]
GPIO
is
PD3
P7
SWM/I2S_SD0/P2N/D[4]
GPIO is PD4
P8
CK/I2S_BCK/7816_TRX/D[7]
GPIO is PD7
P9
DMIC_CLK/7816_CLK/I2S_CLK/A[1]
GPIO is PA1
P10
P0/7816_TRX/I2C_SDA/32KIN/C[2]
GPIO is PC2
P11
I2C_SCK/P1N/P0/C[1]
GPIO is PC1
P12
I2C_SDA/P4N/URTS/C[0]
GPIO
is
PC0
P13
SDMN1/DO/URX/B[7]
GPIO
is
PB7
P14
SWS
Download interface
P15
GND
Ground
P16
VCC
Power supply
P17
VCC
Power supply
P18
GND
Ground
P19
PWM4_PB4
PWM pin，GPIO is PB4
P20
PWM5_PB5
PWM pin，GPIO is PB5
P21
PWM1_PC3
PWM pin，GPIO is PC3
P22
PWM2_PC4
PWM pin，GPIO is PC4
P23
PWM3_PD2
PWM pin，GPIO is PD2
P24
ADC_PB6
AD pin，GPIO is PB6
P25
UTX
UART interface TX
P26
URX
UART interface RX