Displays

This wasn’t possible on the Model A or B, but now the B+ and newer models exposes 40 GPIO pins, there’s more to play with. As well as just allowing you to connect a VGA monitor natively, it also means you can use it as a secondary monitor alongside HDMI. And unlike composite video, the DPI interface can be run independent of the HDMI. The software for dual screens is still under development, but we expect that to arrive in the next couple of weeks. Running two screens at maximum resolution will consume SDRAM bandwidth, and is yet to be tested. (And there’s a catch: as the board uses most of your GPIO pins, you lose access to them.)

The VGA output supports the same resolution as your HDMI one: from 640 x 480 up to 1920 x 1024 at 60fps. At the highest resolution the pixel quality is almost as good as HDMI. The adapter uses a simple resistor ladder network as a digital-to-analogue converter, so the colour quality depends on how well-balanced your resistors are. There is slight colour banding, and with 6 bits per channel you have a maximum of 262144 colours.

Dom has been working on the software side and the new DPI (read: VGA) driver software has been added to the latest release.

 

This product contains only the display. Raspberry Pi, case and cables are shown for illustration purposes only and not included.


The cute PiTFT got even more adorable with this little primary display for Raspberry Pi in HAT form! It features a 2.2" display with 320x240 16-bit color pixels. The HAT uses the high speed SPI interface on the Pi and can use the mini display as a console, X window port, displaying images or video etc. Best of all it plugs right in on top of your Model A+ or B+ and fits into our case quite nicely.

It's designed to plug directly onto the Raspberry Pi 2 or Raspberry Pi 1 Model A+ or B+ . While not specifically designed for Pi Model A or B,you can use it with A/B if you solder in an extra-tall 2x13 header (not included) instead of the included 2x20 header.

This design uses the hardware SPI pins (SCK, MOSI, MISO, CE0, CE1) as well as GPIO #25. All other GPIO are unused and are available on a 25-pin long breakout line. Since we had a tiny bit of space, there's 4 flat tactile switches wired to four GPIOs, that you can use if you want to make a basic user interface. For example, you can use one as a power on/off button.

Comes as a fully assembled display PCB and an additional 2x20 GPIO header. Some light soldering is required to attach the 2x20 GPIO header to the HAT but it's fast and easy for anyone with a soldering iron and solder. You can also swap the plain female header we have with a 'stacky' type that lets you plug in a hat or GPIO cable on top or a slim ultra-low-profile header.

Technical Details

• Board Dimensions: 65mm x 57mm x 6mm / 2.6" x 2.2" x 0.2"
• Screen Dimensions: 55mm x 40mm / 2.2" x 1.6"

Tutorials

To make it super easy for use: Adafruit have created a custom kernel package based of off Notro's awesome framebuffer work, so you can install it over your existing Raspbian (or derivative) images in just a few commands. Their tutorial series shows you how to install the software, play small videos, or display images such as from your PiCam and more!

Raspberry Pi not included

Adafruit's best-selling PiTFT just got a fancy upgrade, now we have a version with a capacitive touchscreen! That's right, instead of a resistive touchscreen, which requires a fingernail or stylus, you can now use a fingerpad. The screen looks much nicer, with a black bezel and glass overlay.

Featuring a 2.8" display with 320x240 16-bit color pixels and a single-touch capacitive touch overlay. The plate uses the high speed SPI interface on the Pi and can use the mini display as a console, X window port, displaying images or video etc. Best of all it plugs right in on top!

It's designed to fit nicely onto the Pi Model A or B rev 2 but also works perfectly fine with the Model B+ as long as you don't mind the PCB overhangs the USB ports by 5mm, see the photos above. Model B rev 1 have an older layout for the I2C pins and won't be able to use the touch screen

Uses the hardware I2C Pins (SDA & SCL), SPI pins (SCK, MOSI, MISO, CE0) as well as GPIO #25 and #24. All other GPIO are unused and you can still share the I2C pins with sensors, LED drivers, etc. Since we had a tiny bit of space, there's 4 spots for optional slim tactile switches wired to four GPIOs, that you can use if you want to make a basic user interface. For example, you can use one as a power on/off button. See below for the link to get the optional tact switches, they're not included.

The screen is the same size as the resistive type so you can use this with the PiTFT PiBow or any other enclosure you may already have. We also use the same SDL device and signals so PyGame and X11 based programs can be swapped in with no changes in code.

This version comes as a mini-kit, with a 2x13 extra-tall female header (to connect the plate to the Pi) and a 2x13 male header that can be used to connect an IDC cable or cobbler from the side. The photos above also show the optional installed slim tactile buttons. The tactile buttons are not included. Some basic soldering is required to install the headers. You can also pick up an extra-long Pi stacking header if you want to install that instead of the 2x13 female header installed.

Technical Details

• Display current draw is mostly based on the backlight, with full-on backlight the current draw is ~100mA.
• Screen Dimensions: 50mm x 69mm x 4mm / 2" x 2.7" x 0.16"
• PCB Dimensions: 56mm x 85mm x 2mm / 2.2" x 3.4" x 0.08"
• Weight: 44g

Assembly and Installation

Please visit Adafruit for assembly and installation instructions.

New to ModMyPi, Wareshare's 10.1" 1280x800 IPS Touch Screen & Case! It's easy to set up, features a great resolution, comes complete with a black acrylic stand, and has touch by default!

This device uses the Pi's HDMI output for display, and the Pi's USB port for touch control. Assembly of the Waveshare 10.1" screen is easy, just follow our simple guide here. Please Note. This device does require some simple set up. You will need a UK to EU power adapter.

The LCD Screen Features:

• 10.1inch HDMI LCD (B)
• 1280x800 Resolution
• UK 5V 2A Power Supply Included
• Capacitive touch control
• Supports Raspberry Pi, Ubuntu, Windows 10 IoT driver free
• Can also be used as a computer monitor, supports Windows 10/8.1/8/7/XP etc.
• Supports BB Black, comes with Angstrom image
• HDMI interface for displaying, USB interface for touch control
• Input interfaces: HDMI
• Multi languages OSD menu, for power management, brightness/contrast adjustment, etc.
• Firmware is upgradable to support more new features (continually updated)

The Case Features:

• Material : High quality black and clear Acrylic
• Comes with bottom holder, 45° tilt angle
• Features mounting holes for Raspberry Pi 3B/2B/B+/A+/B, and BB Black

Downloads

Quick Assembly Guide

Wiki

Descriptions : 

The MAX7219 is an integrated serial input / output common-cathode display driver, it is connected to a microprocessor with 8digit 7segment digital LED display can also be connected to the bar graph display or 64 separate LED.

On B BCD encoder including an on chip, multi channel scanning loop word drive, but also an 8 x 8 static RAM is used to store each data. Only one external register is used to set the current of each LED segment.

A convenient four wire serial interface can connect all general purpose microprocessor. Each data can be addressed in the update does not need to rewrite all the display. MAX7219 also allows the user to select on each data coding or non-coding.
 

The entire device contains a 150uA low-power shutdown mode, analog and digital brightness control, a scan-limit register allows the user to display the 1-8 bits of data, as well as a let all LED light detection mode.

Only need three IO ports can drive a dot-matrix! Dot-matrix display, flicker-free! Supports cascading !

Notice:
This kit requires soldering.


Package includes :

  1x MAX7219 Dot Matrix Module