# Adafruit EYESPI BFF for QT Py or Xiao - 18 Pin FPC Connector

**Type:** Product page · **SKU:** ADA5772 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/adafruit-eyespi-bff-for-qt-py-or-xiao-18-pin-fpc-connector.html ([markdown](https://core-electronics.com.au/adafruit-eyespi-bff-for-qt-py-or-xiao-18-pin-fpc-connector.html.md))

Our QT Py boards are a great way to make very small microcontroller projects that pack a ton of power - and now we have a way for you to add a small,...

## Pricing

- **Price:** $7.05 (inc GST) — $6.41 AUD, exc GST
- **Quantity discounts:** 10+ $6.22 (exc GST) · 50+ $6.09 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 03 and Sep 07.

## Description

Adafruit's QT Py boards are a great way to make very small microcontroller projects that pack a ton of power - and now Adafruit have a way for you to add a small, colorful, and bright display to any project.

Adafruit's most recent [display breakouts have come with a new feature: an 18-pin "EYE SPI" standard FPC connector with flip-top connector](https://core-electronics.com.au/search?q=eyespi). This is intended to be a sort-of "[STEMMA QT](https://learn.adafruit.com/introducing-adafruit-stemma-qt) for displays" - a way to quickly connect and extend display wiring that uses a lot of SPI pins. In this case Adafruit need a lot of SPI pins, and Adafruit want to be able to use long distances, so they go with an 18-pin 0.5mm pitch FPC.

With such a slim and flexible cable, its a perfect matching for [Adafruit's QT Py boards](https://www.adafruit.com/search?q=qt+py) to make extra smol microcontroller boards with [big bold colorful displays](https://core-electronics.com.au/catalogsearch/result/?q=eyespi+display) or [power-sipping E-Ink](https://www.adafruit.com/search?q=e-ink).

Don't forget you'll also want an [18-pin EYESPI FPC cable](https://core-electronics.com.au/eyespi-cable-18-pin-50mm-long-flex-pcb-fpc-a-b-type.html). And of course [one of Adafruit's EYESPI displays](https://www.adafruit.com/search?q=eyespi) too - look for the EYESPI logo on the back to know you've got one that can clip in.

- **MOSI/MISO/SCK** SPI pins are connected to the default **SPI** port on the QT Py
- **SDA/SCL** I2C pins are connected to the **I2C** port on the QT Py headers - some boards have a separate QT Py I2C port so keep in mind they may be separate busses.
- **TFT CS** on **TX** pin - but can be re-configured/disabled by cutting a solder jumper.
- **TFT DC** on **RX** pin - but can be re-configured/disabled by cutting a solder jumper.
 
We also have 'sometimes used' pins that can be re-configured/disabled by cutting a solder jumper

- **IRQ** on **A0** pin - Many of Adafruit's displays don't use the IRQ pin unless there's a touchscreen.
- **Touch CS** on **A1** pin - Many of Adafruit's displays don't have a touchscreen.
- **Memory CS** on **A2** pin - Only Adafruit's E-Ink displays have a separate memory SRAM chip, which you may be able to skip using on most QT Py's.
- **SD Card CS** on **A3** pin - Or use for whatever you like if you aren't using the SD Card socket on of Adafruit's display breakouts.
 
There's also two through-hole solder pads for extra pins that are often considered optional and Adafruit didn't have any more IO to spare. If you aren't using any of the 4 pins above or the I2C port, you could wire these two pins with jumper wires as you desire.

- **Backlight control** - this is default on for most of Adafruit's displays, or unused on E-Ink,
- **Display reset** - this is default on for most of Adafruit's displays. Sometimes its used for low-power on E-Ink.
 
Adafruit include some header that you can solder to your QT Py. [You can also pick up an Itsy Bitsy short female header kit to make it removable but compact](https://core-electronics.com.au/short-female-header-kit-for-itsybitsy.html), you'll just need to trim down the headers to 7 pins long.

- Comes as an assembled and tested PCB
- For any QT Py or Xiao boards
 
**QT Py, display and EYESPI cable are not included**.

## Technical Details

Product Dimensions: 20.6mm x 17.8mm x 2.7mm / 0.8" x 0.7" x 0.1"

Product Weight: 1.1g / 0.0oz

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## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/A/D/ADA5772-1.jpg)