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TFT-displays

TFT-displays 2.4" - 7.0"
TFT-display rear side AdvaBoard RPi1 (prototype) incl. Raspberry Pi and working TFT-display
(click to enlarge)

TFT-displays

There are several TFT-displays available for the AdvaBoard RPi1 and so the Raspberry Pi:

  • 2.4", 320 × 240 pixels (on request)
  • 3.2", 320 × 240 pixels
  • 4.3", 480 × 272 pixels
  • 5.0", 800 × 480 pixels
  • 7.0", 800 × 480 pixels

All displays have a (resistive) touchscreen and can be used as default Linux-display (incl. X11) with the AdvaBoard RPi1.

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Details

The TFT-displays are intended to be used with the AdvaBoard RPi1. They can either be directly stacked on top of the AdvaBoard, or connected with a 40 pin ribbon cable. No additional cables are neccessary.

All displays contain 4 mounting holes, which can be used to connect the display to a front panel or the the AdvaBoard RPi1. The mounting holes of the 3.2"-TFT-display are exactly at the same positions as the ones of the AdvaBoard RPi1, so the 3.2"-display can directly be fixed to the AdvaBoard (with some spacers).

All displays have a resistive touchscreen and an adjustable backlight.

Price / Delivery time

Included:
  • display (without accessories)
Prices:
display excl. VAT incl. German VAT
TFT24 / 2.4" 21 € 24.99 €
TFT32 / 3.2" 21 € 24.99 €
TFT43 / 4.3" 45 € 53.55 €
TFT50 / 5.0" 55 € 65.45 €
TFT70 / 7.0" 70 € 83.30 €
Delivery time:
October - November

Accessories

  • 40 pin ribbon cable (selectable length / direction of the connectors)
  • various spacers / screws
  • mounting adapters (for mounting a 4.3"/5.0"/7.0" display on the AdvaBoard RPi1)
TFT ribbon cable
TFT ribbon cable
(click to enlarge)

Software

The following software is available for the TFT-displays (in connection with the AdvaBoard RPi1):

  • framebuffer-driver for Linux (to use the display as standard Linux-display incl. X11)
  • touchscreen-driver for Linux
  • C- and Python-library to directly access the displays

So, the displays can either be used as normal Linux-displays, or used directly by C or Python.

technical information

technical data:

TFT24 TFT32 TFT43 TFT50 TFT70
size 2.4" 3.2" 4.3" 5.0" 7.0"
active area [mm] 48.96*36.72 64.80*48.6 95.04*53.86 108*64.80 ??154.08*85.92??
resolution 320*240 320*240 480*272 800*480 800*480
aspect ratio 4.3 4:3 16:9 15:9 15:9
pixel size 0.15mm 0.2025mm 0.2mm 0.135mm ~0.2mm
pixel density 166 dpi 125 dpi 128 dpi 188 dpi ~132 dpi
touchscreen resistive resistive resistive resistive resistive
brightness [cd/m²]          
contrast   150-250:1 250-350:1 150-250:1 400-500:1
viewing angle hor.   +35°/-15° 130° +45°/-45° +60°/-60°
viewing angle vert.   +48°/-48° 110° +15°/-35° +50°/-70°
power consumption          
PCB-size [mm] 53*48 94.5*57.5 120*74 133*84.35 181*108
mounting holes D 2.5mm D 3.2mm D 3.2mm D 3.2mm D 3.2mm
weight 32g 53g 95g 135g 255g

(typical values, sizes in mm, viewing angles for contrast >= 10:1;
the missing data will soon be measured by us.)

Dimensions:
see DXF-drawing [1]
Connector:
  • header (2.4" / 3.2") or IDC header (4.3" / 5.0" / 7.0"), 40 pins, pitch 2.54mm
  • pin 1/3/../39 are on the inner side of the display-board
header, 40 pins
TFT-display-connector (2.4" / 3.2")
(mating view)
IDC header, 40 pins
TFT-display-connector (4.3" / 5.0" / 7.0")
(mating view)
pin signal description
1 TFT_DB0 display data line
2 GND ground
3 TFT_DB1 display data line
4 +3.3V display power (3.3V)
5 TFT_DB2 display data line
6
7 TFT_DB3 display data line
8 TFT_RS display control line
9 TFT_DB4 display data line
10 TFT_WR display control line
11 TFT_DB5 display data line
12 TFT_RD display control line
13 TFT_DB6 display data line
14 TFT_DB8 display data line
15 TFT_DB7 display data line
16 TFT_DB9 display data line
17 TP_SCK touchscreen clock
18 TFT_DB10 display data line
19 TP_CS touchscreen chip-select
20 TFT_DB11 display data line
21 TP_MOSI touchscreen MOSI
22 TFT_DB12 display data line
23
24 TFT_DB13 display data line
25 TP_MISO touchscreen MISO
26 TFT_DB14 display data line
27 TP_IRQ touchscreen interrupt
28 TFT_DB15 display data line
29 SD_MISO SD-card MISO
30 TFT_CS display control line
31 SD_SCK SD-card clock
32
33 SD_MOSI SD-card MOSI
34 TFT_RESET display control line
35 SD_CS SD-card chip-select
36 LED_5V Hintergrundbeleuchtung (5V)
37
38 LED_R Hintergrundbeleuchtung (5V + Vorwiderstand)
39
40

[1]free CAD-software for DXF-files: e.g. http://www.librecad.org, http://www.qcad.org/