LED- LED+ Y+ X+ Y- X- 3V3 GND GND GND IM0 DC WR RD LCD_CS RST D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 GND GND U1 LEDK LEDA YU XR YD XL VDD VDDI IM3 IM2 IM1 IM0 SDO SDI DCX WR RD CS RESET DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 DEN GND PCLK GND HS VS TE LED_PWM NT35510 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 4inch LCD 5V U3 RT8059 4 1 C2 106 VIN LX D N G EN FB 3 5 L1 2.2uH 3V3 30p 100K C3 R7 106 C4 GND R6 22K GND Power aveshareW 4inch Resistive Touch LCD 5V D0 D2 D4 D6 D8 D10 D12 D14 LCD_CS WR RST BL_VCC BL TP_CS TP_SDI 3V3 P1 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 33 31 29 27 25 23 21 19 17 15 13 11 9 7 5 3 1 GND D1 D3 D5 D7 D9 D11 D13 D15 DC RD GND TP_IRQ TP_SCK TP_SDO GND LCD Header Interface 3V3 IM0 GND 1 2 3 H1 8 Bits/16 Bits Data Bus Choice 8Bits:IM0~GND 16Bits:IM0~3V3 3V3 X+ Y+ X- Y- C1 104 GND 1 2 3 4 5 6 7 8 U2 VCC XP YP XN YN GND VBAT AUX DCLK CS DIN BUSY DOUT PENIRQ IOVDD VREF XPT2046 16 15 14 13 12 11 10 9 TP_SCK TP_CS TP_SDI TP_SDO TP_IRQ R5 10K 3V3 Touch Panel Driver BL_VCC C5 104 R8 10K BL GND L2 22uH U4 VIN SW EN OV FB GND PT4103 1 5 3 6 4 2 GND D1 SS14 GND LED+ C6 104 LED- R9 10R R10 10R LCD Backlight Power GND