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原理图(Pico-LoRa-SX1262_Sch).pdf

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A B C D 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 GPIO0 GPIO1 GND LoRa_BUSY LoRa_CS GPIO4 GPIO5 GND GPIO6 GPIO7 GPIO8 GPIO9 GND CLK MOSI MISO GPIO13 GND GPIO14 LoRa_RESET U1 GPIO0 GPIO1 GND GPIO2 GPIO3 GPIO4 GPIO5 GND GPIO6 GPIO7 GPIO8 GPIO9 GND GPIO10 GPIO11 GPIO12 GPIO13 GND GPIO14 GPIO15 VBUS VSYS GND 3V3_EN 3V3 ADC_VREF IO28/ADC2 AGND IO27/ADC1 IO26/ADC0 RUN GPIO22 GND GPIO21 GPIO20 GPIO19 GPIO18 GND GPIO17 GPIO16 Pi pico (40P) 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 VBUS VSYS GND 3V3_EN Pico_3V3 P35 GPIO28 GND GPIO27 BATTERY_AD RUN LoRa_ANT GND GPIO21 DIO1 GPIO19 GPIO18 GND GPIO17 GPIO16 2 3 4 H2 123 VBAT GND SYS Q2 AO3401 S1 A2B VBAT SYS VBUS C29 4.7uF R12 0R R13 470R GND LED_CHG U2 4 1 VDD VBAT PROG STAT VSS 3 5 2 MCP73831 VBAT R14 2K C30 4.7uF GND aveshareW Pico-LoRa-SX126X USB_Logo Pico_3V3 R15 0R R164 1K L_PWR1 GND Indicator Light BATTERY_AD VBAT R17 200K R19 0R R18 100K GND FB1 Ferrite beads DIO3 GND C28 1 4 Pico_3V3 R22 0R Q1 D TCXO N 32.0MHz G C C V C16 10nF U3 VR_PA C1 C2 L1 C4 GND GND C6 L3 C5 L4 C7 H3 3 2 1 Pico_3V3 LoRa_ANT C14 1nF GND D N G T U O L8 NC 2 3 C27 GND R5 DIO3 L7 15uH Pico_3V3 C17 470nF DIO2 C18 100nF 1 2 3 4 5 6 7 8 9 10 11 12 VDD_IN GND XTA XTB GND DIO3 VREG GND DCC_SW VBAT VBAT_IO DIO2 D N G 5 2 GND VR_PA RFO RFI_N RFI_P GND NSS SCK MOSI MISO NRESET BUSY DIO1 24 23 22 21 20 19 18 17 16 15 14 13 LoRa_CS CLK MOSI MISO LoRa_RESET LoRa_BUSY DIO1 GND GND GND SX1262 C11 C13 GND GND GND L6 C12 GND GND GND U4 1 2 3 RF1 GND RF2 CTRL RFC CTRL PE4259 RF Switch 6 5 4 C8 L5 C9 C10 H4 1 2 3 GND GND DIO2 C15 1nF GND 1 2 3 4 A B C D
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