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原理图(BMP388_Barometric_Pressure_Sensor_Schematic).pdf

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A B C D 1 1 2 3 1 2 3 U1 VIN GND EN VOUT BP RT9193-33 5 4 C5 22nf GND 3.3V C3 1uf R1 1K C4 0.1uf L1 LED I2C Addr 0x76 3.3V GND INT CSB 10 9 8 7 6 U3 VDD VSS VSS INT CSB VDDIO SCK VSS SDI SDO BMP388 1 2 3 4 5 SCK SDI SDO C6 0.1uf 3.3V GND GND GND R6 0R VCC C1 10uf C2 1uf GND POWER BMP380 P1 5 4 3 2 1 CON5 P2 6 5 4 3 2 1 CON6 VCC GND EXT_SDA_SDI EXT_SCL_SCK EXT_INT VCC GND EXT_SDO EXT_SDA_SDI EXT_SCL_SCK EXT_CSB Interface VCC 3.3V EXT_SDA_SDI R2 4.7K 6 1 R3 4.7K SDI 5 U2A NDC7002N VCC 3.3V EXT_SCL_SCK R4 4.7K 4 3 R5 4.7K SCK 2 EXT_CSB U2B NDC7002N VCC 3.3V 1 R7 4.7K 6 R8 4.7K 5 CSB U4A NDC7002N VCC 3.3V EXT_SDO 3 R9 4.7K 4 R10 4.7K 2 SDO U4B NDC7002N VCC 3.3V 1 R11 4.7K 6 R12 4.7K 5 INT U5A NDC7002N EXT_INT 2 3 4 4 A B C D
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