User Manual

VMP400
V. 03 – 14/01/2020 3 ©Velleman nv
4. Overview
resolution ........................................................................................................... 320 x 480
LCD type ..................................................................................................................... TFT
LCD interface ................................................................................................................ SPI
touch screen type ................................................................................................... resistive
backlight ...................................................................................................................... LED
aspect ratio ................................................................................................................... 8.5
5. Pin Layout
pin no.
symbol
description
1, 17
3.3 V
power positive (3.3 V power input)
2, 4
5 V
power positive (5 V power input)
3, 5, 7, 8, 10, 12, 13,
15, 16
NC
NC
6, 9, 14, 20, 25
GND
ground
11
TP_IRQ
touch panel interrupt, low level while the panel
detects touching
18
LCD_RS
instruction/data register selection
19
LCD_SI/TP_SI
SPI data input of LCD/touch panel
21
TP_SO
SPI data output of touch panel
22
RST
reset
23
LCD_SCK/TP_SCK
SPI clock of LCD/touch panel
24
LCD_CS
LCD chip selection, low active
26
TP_CS
touch panel chip selection, low active
6. Example
Required Hardware
• 1 x Raspberry Pi
®
1/2/3 main board
• 1 x microSD card (> 8 GB, image file ± 7.5 GB)
• 1 x microSD card reader
• 1 x micro USB cable
• 1 x USB keyboard
• 3.5” LCD module (VMP400)
Required Software
• SD formatter
• Win32Disklmager
• Raspberry Pi
®
OS IMAGE
• LCD Driver