ADA5666 · AdafruitActive
Adafruit product #5666.
| Part number | ADA5666 |
|---|---|
| Manufacturer | Adafruit |
| Category | Displays & LEDs › LED Drivers & Controllers |
| Pins | 28 |
Adafruit IoT Button with NeoPixel BFF Add-On for QT Py and Xiao pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | +5V | power | |
| 2 | +5V | power | |
| 3 | A0 | bidirectional | |
| 4 | A0 | bidirectional | |
| 5 | GND | ground | |
| 6 | GND | ground | |
| 7 | A1 | bidirectional | |
| 8 | A1 | bidirectional | |
| 9 | 3.3V | power | |
| 10 | 3.3V | power | |
| 11 | A2 | bidirectional | |
| 12 | A2 | bidirectional | |
| 13 | MOSI | bidirectional | |
| 14 | MOSI | bidirectional | |
| 15 | A3 | bidirectional | |
| 16 | A3 | bidirectional | |
| 17 | MISO | bidirectional | |
| 18 | MISO | bidirectional | |
| 19 | SDA | bidirectional | |
| 20 | SDA | bidirectional | |
| 21 | SCK | bidirectional | |
| 22 | SCK | bidirectional | |
| 23 | SCL | bidirectional | |
| 24 | SCL | bidirectional | |
| 25 | RX | bidirectional | |
| 26 | RX | bidirectional | |
| 27 | TX | bidirectional | |
| 28 | TX | bidirectional |
Schematic symbol and footprint
Footprint: Adafruit IoT Button with NeoPixel BFF (header pads) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
Datasheet
Where to buy
Stock and prices from the suppliers, checked 2026-10-08; excluding tax and shipping.
Related parts
Adafruit NeoPXL8 FeatherWing for Feather M0 - 8 x DMA NeoPixels!ADA3249
NeoPixel FeatherWing - 4x8 RGB LED Add-on For All Feather BoardsADA2945
PicoBuck LED DriverCOM-13705
SparkFun Large Digit DriverWIG-13279
Adafruit 5x5 NeoPixel Grid BFF Add-On for QT Py and XiaoADA5646
Adafruit I2C Quad Rotary Encoder Breakout with NeoPixelADA5752
Adafruit I2C Stemma QT Rotary Encoder Breakout with NeoPixelADA4991
Adafruit NeoDriver - I2C to NeoPixel Driver Board - Stemma QTADA5766