2 3 1 3V3 LCD_CS' SCLK U1 Q11 VCC Q10 Q5 Q9 Q4 Q7 Q6 Q8 Q3 MR Q2 ~CP Q1 GND Q0 74HC4040 CLK/16 GND 3V3 3V3 GND C9 104 GND C8 104 CLK/16 MOSI SCLK D0 D1 D2 D3 U2 STR VCC OE DATA Q4 CP Q5 Q0 Q6 Q1 Q7 Q2 QS2 Q3 GND QS1 74HC4094 GND D4 D5 D6 D7 CLK/16 SCLK D8 D9 D10 D11 U3 STR VCC OE DATA Q4 CP Q5 Q0 Q6 Q1 Q7 Q2 QS2 Q3 GND QS1 74HC4094 GND LCD SPI ->16BIT CLK/16 LCD_SCLK D12 D13 D14 D15 GND U4 DSA DSB Q0 Q1 Q2 Q3 GND VCC Q7 Q6 Q5 Q4 MR CP 74HC04D 3V3 C1 104 GND X+ Y+ X- Y- U5 VCC XP YP XN YN GND VBAT AUX DCLK CS DIN BUSY DOUT PENIRQ IOVDD VREF 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 XPT2046 GND SCLK TP_CS MOSI TP_BUSY MISO TP_IRQ 3V3 R5 100K 3V3 C3 104 GND Touch Screen RESET K1 GND Reset GND LCD_CS LCD_CS' GND LCD_DC LCD_DC' R10 3K3 R11 3K3 3V3 C10 U6 1OE 1A 1Y 2OE 2A 2Y GND 1 2 3 4 5 6 7 VCC 4OE 4A 4Y 3OE 3A 3Y 14 13 12 11 10 9 8 GND 104 R12 3K3 GND LCD_RST LCD_RST' 74VHC125 GND Level conversion MISO SCLK RESET CN1 1 3 5 2 4 6 MOSI GND SPI Interface D1 D0 VSS CLK VDD CMD CD/D3 D2 8 7 6 5 4 3 2 1 SD Card AMS1 i V G o V 9 CD GND TF1 TF-SD 5V 3 1 2 C4 C5 10uF/25V 104 C6 104 3V3 C7 10uF/25V GND Power aveshareW 3V3 GND 0 1 D N G 5 K _ L B 4 K _ L B 3 K _ L B 2 K _ L B 1 K _ L B 4 2 R 3 2 R 2 2 R 1 2 R 0 2 R R 0 1 R 0 1 R 0 1 R 0 1 R 0 1 LCD_BL R14 1K Q1 8050 GND LCD BACKLIGHT 3V3 1 R 2 R 3 R 4 R K 1 K 1 K 1 K 1 GND SCLK 3V3 MOSI SD_CS MISO C2 104 GND GND 3V3 3V3 GND 4 LCD_CS' LCD_DC' LCD_SCLK LCD_RST' D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 Y- X- Y+ X+ BL_K1 BL_K2 BL_K3 BL_K4 BL_K5 3V3 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 J1 GND LCD RESET 5V GND GND 1 2 3 4 5 6 CN4 1 2 3 4 5 6 CN5 8 7 6 5 4 3 2 1 CN2 8 7 6 5 4 3 2 1 CN3 Header3X2 1 3 5 2 4 6 Header 3X2 SCLK MISO MOSI Interface LCD_CS LCD_BL LCD_RST LCD_DC TP_BUSY SD_CS TP_CS TP_IRQ A B C D A B C D 1 2 3 4