# Giant Butterfly for Raspberry Pi

**Type:** Product page · **SKU:** CE08399 · **Brand:** [The Pi Hut](https://core-electronics.com.au/brands/the-pi-hut)
**Page:** https://core-electronics.com.au/giant-butterfly-for-raspberry-pi.html ([markdown](https://core-electronics.com.au/giant-butterfly-for-raspberry-pi.html.md))

The Giant Butterfly allows four HATs or pHATs (or a mix) to be attached to a single Raspberry Pi 40-way connector. All pins are connected and the ID\_SD...

## Pricing

- **Price:** $9.50 (inc GST) — $8.64 AUD, exc GST
- **Quantity discounts:** 10+ $8.29 (exc GST) · 25+ $8.04 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 18 and Aug 24.

## Description

The Giant Butterfly allows four HATs or pHATs (or a mix) to be attached to a single [Raspberry Pi](https://core-electronics.com.au/raspberry-pi/boards/model-b.html) 40-way connector.

All pins are connected and the ID\_SD and ID\_SC (HAT EEPROM) have cuttable solder jumpers.

For HATs and pHATs with an EEPROM (required by the HAT specification), you will need to cut the ID solder jumpers (with a [sharp knife](https://core-electronics.com.au/hobby-knife.html)) to prevent conflicts.

The EEPROM on the primary HAT (over the Pi) is always connected to the Pi. If at a later date you require the ID pins to be reconnected this can be done by bridging the jumper with solder.

**Note**: The Giant Butterfly uses a 4-layer PCB to achieve its small footprint. Due to the traces crossing over each other we do not recommend using it where high-frequency signals/switching is required. **Raspberry Pi, headers and HATs not included.**

**Before Using**

When using multiple HATs you MUST check for conflicts - for example, enable/select pins when using SPI, I2C addresses and GPIO pin conflicts and modes, 8086 advise checking on [pinout.xyz](https://pinout.xyz/) and/or with the HAT manufacturer for used pins/modes in use.

**Assembly / Soldering**

The Giant Butterfly board would normally be used with 3x [male](https://core-electronics.com.au/raspberry-pi-gpio-male-header-2x20.html) + 1x [tall stacking headers](https://core-electronics.com.au/stacking-header-for-raspberry-pi-b-2x20-extra-tall-header.html) (not included). The tall stacking header is for the Raspberry Pi and the primary HAT, and the male headers is for the other HAT positions.

- The top side of the board has the "Giant Butterfly" text and the underside has the ID solder jumpers.
- **See the important notes below for the primary HAT position**. Push the female header with long pins through from the bottom and solder into the holes closest to the HAT position marked "RPi".
- Next the 3 male headers can be soldered into the other 3 positions.

**Important Notes**

- When soldering the long female header onto the Giant Butterfly please be aware of the clearance with the USB/Ethernet connectors on the Raspberry Pi. [Use a tall header with shrouds like this one](https://core-electronics.com.au/stacking-header-for-raspberry-pi-b-2x20-extra-tall-header.html).
- Either way, 8086 strongly recommend applying a couple of layers of [electrical insulation tape](https://core-electronics.com.au/electrical-tape) onto the top of the connector (USB\[Pi4\]/Ethernet) under the Giant Butterfly board to prevent shorts.
- Pin 1 of each HAT position is marked with a white line next to the square pad.

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_13058.jpg)