DP-9401123 VDD3 VDD34 W2 VDD3 R5 4.7K 2 1 OS U3 SDA SCL 1 2 3 4 SDA SCL OS GND LM75 +Vs A0 A1 A2 VDD3 8 7 6 5 5K56CZ11 2 3D1 1N5819 R1 3K C1 100uF C4 104U2 HT7130A Vin GND 2 Vout 3VDD_MCU C2 10uF C9 104 R4 3K U4 MAX809R 2 /RST R3 R2 100K 3K Q1 8050 Q2 8550 Temperature measurement circuit J1VLCD R6 3K BP0 BP2 BP1 BP3 S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 3P P1.3_SDA 2 C11 3P C12 30p X1 32.768KHz 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 LCD 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 S31 S30 S29 S28 S27 S26 S25 S24 S23 S22 S21 S20 S19 S18 S17 S16 S15 S14POWER(5V)VDD3 R7 1K R8 1K1D TP1 TP2LED9 VDD3 POWER 3 VCCDC10 3P P1.3_SDA 2 C11 3P C12 30p X1 32.768KHz C13 30p X1_1 P3.1 X1_2 P3.0 1 3 4 6 JP1 A1 B1 C1 A2 B2 C2 RTC_X1 2 5 P3.1_XTAL1 P3.0_XTAL2 P1.2_SCL 5JP2 B1 B2 I2C A1 C1 A2 C2VDD3GND1 3 4……
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