Elegoo 3.5" TFT - Hardware Preparation; Software Preparation

Power Consumption
TBD
Back-light current
TBD
Operating
temperature(℃)
TBD
（4）Raspberry Pi GPIOs used by 3.5 inch touch screen
INTERFACE
RPi PIN NO.
SYMBOL
DESCRIPTION
1,17 3.3V Power positive(3.3V input)
2.4 5V Power positive(5V input)
3,5,7,8,10,12,13,15,16 NC NC
6,9,14,20,25 GND GND
11 TP_IRQ
Touch Panel interrupt, low level while the
Touch Panel detects touching
18 LCD_RS
LCD instruction control, Instruction/Data
Register selection
19 LCD_SI/TP_SI SPI data input of LCD/Touch Panel
21 TP_SO SPI data output Touch Panel
22 RST Reset
23
LCD_SCK/TP_SC
K
SPI clock of LCD/Touch Panel
24 LCD_CS LCDs chip selection, low active
26 TP_CS Touch Panel's chip selection, low active
1.2.
Hardware Preparation
（1）A computer(better with desktop)；
（2）A Raspberry Pi (Pi3 is recommended which is also used in next tutorial）