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原理图(Piano-for-microbit-Schematic).pdf

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K7 K6 K5 K4 K3 K2 K1 K0 1 R8 1M R7 1M R6 1M R5 1M R4 1M R3 1M R2 1M R1 1M C8 GND 3V3 3V3 10uF/25V C7 GND SDA/P20 SCL/P19 100nF R10 10K R11 10K I2C A B C D L1 DIN VSS VDD DOUT WS2812B L2 DIN VSS VDD DOUT WS2812B GND P1 GND 1 GND 2 L3 DIN VSS VDD DOUT WS2812B L4 DIN VSS VDD DOUT WS2812B GND 3 4 2 3 4 C1 0-50pF C2 0-50pF C4 0-50pF PIANO_E PIANO_F PIANO_F# PIANO_G PIANO_G# PIANO_A PIANO_A# PIANO_B GND K3 K2 K1 K0 K15 K14 K13 K12 SDA/P20 SDO SCL/P19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 U1 SLPSENA TP3 TP2 SENADJ0 TP1 TP0 TP15 TP14 SENADJ3 TP13 TP12 SDA SDO SCL VSS VDD TP4 TP5 SENADJ1 TP6 TP7 TEST TP8 TP9 SENADJ2 TP10 TP11 SLPSENB TTP229L 28 27 26 25 24 23 22 21 20 19 18 17 16 15 GND 3V3 PIANO_D# PIANO_D K4 K5 PIANO_C# PIANO_C K6 K7 TEST K8 K9 K10 K11 PIANO_C1 Touch 3V3 C3 0-50pF C5 0-50pF C6 0-50pF GND D1 1N4148 2 B 1 u z z e rB1 P0 R13 180 Q1 NPN_SOT23 aveshareW Micro:bit Piano Board GND Buzzer RGB LED 3V3 LED1/P3 P0 LED2/P4 KEY_A/P5 LED9/P6 LED8/P7 P1 P8 LED7/P9 LED3P10 KEY_B/P11 P12 P2 SCK/P13 MISO/P14 MOSI/P15 P16 3V3/P17 3V3 3V3/P18 SCL/P19 SDA/P20 GND GND GND H41 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 H41 LED1/P3 P0 LED2/P4 KEY_A/P5 LED9/P6 LED8/P7 P1 P8 LED7/P9 LED3P10 KEY_B/P11 P12 P2 SCK/P13 MISO/P14 MOSI/P15 P16 3V3/P17 3V3 3V3/P18 SCL/P19 SDA/P20 GND GND GND 3V3 GND P0 P1 SCL/P19 SDA/P20 H1 1 2 3 4 5 6 H2 1 2 3 4 5 6 3V3 GND P2 SCK/P13 MISO/P14 MOSI/P15 Header 6 Header 6 Micro:bit GPIO A B C D
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