1 2 3 4 5 6 D C B A S W M I O U T 2 O U T 1 I O 2 I O 1 U A R T _ T X U A R T _ R X R F - I ( R Q D O 0 ) I NRST C5 100nF X1 X2 X1 Y1 2 X C3 12pF 16M C4 12pF KEY1 KEY2 KEY3 VCC C6 1uF 2 3 1 3 0 3 9 2 8 2 7 2 6 2 5 2 0 A P 6 C P 5 C P 4 C P 3 C P 2 C P 1 C P 0 C P U1 1 2 3 4 5 6 7 8 NRST/PA1 PA2 PA3 PA4 PA5 PA6 VSS VDD PD7 PD6 PD5 PD4 PB7 PB6 PB5 PB4 24 23 22 21 20 19 18 17 sck 0 D P 1 D P 2 D P 3 D P 0 B P 1 B P 2 B P 3 B P STM8L151K4TB 9 0 1 1 1 2 1 3 1 4 1 5 1 6 1 LCD_RST LCD_DC LCD_Din LCD_CLK LCD_CE TX_LED RX_LED RF-REST RF-NSS RF-MISO RF-MOSI RF-SCK DAC ADC I2C-SCK I2C-SDA D4 RLED R1 560R R2 560R D3 GLED VCC R3 POT2 S4 S6 S7 KEY1 KEY2 KEY3 SW-PB SW-PB SW-PB R5 10K R6 10K R7 10K R8 10K R9 10K VCC LCD_RST LCD_DC LCD_Din LCD_CLK LCD_CE VCC JP1 1 2 3 4 5 6 7 SCS DC RST DI CLK VCC GND OLED VCC R4 0R JP2 SI4432/4463/4438 RF-VCC 2 1 1 1 0 1234567891 RF-VCC C1 47uF C2 10nF ) I D S ( ) I O D S ( I S O M - F R ) O D S ( O S I M - F R C C V - F R ) L E S N ( K C S - F R S S N - F R ) Q R N I ( I ) 0 O D Q R ( I - F R T S E R - F R JP4口口SX1278模模，RF_IRQ(GDO) 口口 口1278的DIO0端口RF_CSN(SCS)口1278的 NSS端口 RF-REST RF-SCK RF-MISO JP3 2 4 6 8 XL1278 1 3 5 7 RF-VCC RF-NSS RF-MOSI(SDIO) RF-IRQ(DIO0) VCC SWIM NRST JP5 1 2 3 4 SWD VCC UART_TX UART_RX 1 2 3 4 JP10 1 2 3 4 UART Title Size B Date: File: 5 VCC I2C-SCK I2C-SDA JP11 1 2 3 4 I2C Number Revision 12-Oct-2017 F:\汇汇汇汇汇汇汇汇\PCB文文\xe1201-demo.ddb Sheet of Drawn By: 6 D C B A