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 320×240 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 Pi Model A+ or B+, not for Model A or B (you might be able to solder in a 2×13 header and get it working but we haven’t tested that yet.)
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 2×20 GPIO header. Some light soldering is required to attach the 2×20 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.
To make it super easy for use: we’ve 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. Our tutorial series shows you how to install the software, play small videos, or display images such as from your PiCam and more!
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