Accessories
Qw/ST Pad
Overview
The Qw/ST Pad is a compact, chainable I2C gamepad by Pimoroni.
Each Qw/ST Pad has eight big buttons for inputs (plus two smaller buttons for settings adjustments) and four user controllable white LEDs.
Up to 4 Qw/ST Pads can be connected simultaneously by daisy-chaining them together and selecting unique I2C addresses, enabling multiplayer games and collaborative projects.
Features
- TCA9555 I/O Expander
- 8x large user buttons (labelled U, D, L, R, A, B, X and Y)
- 2x small user buttons (labelled + and -)
- 4x white LEDs
- 2x Qw/ST (Qwiic/STEMMA QT) connectors
- I2C interface, with addresses: 0x21 (default), 0x23, 0x25 or 0x27
- 3V to 5V compatible
- Fully assembled, no soldering required
- Schematic
Connectivity
- 2 × Qw/ST (Qwiic/STEMMA QT) connectors for daisy-chaining
-
I2C interface with selectable addresses:
Address Configuration 0x21Default (no cuts) 0x23Cut trace A0 0x25Cut trace A1 0x27Cut traces A0 and A1 -
Cuttable address traces are located on the back of the board
- Up to 4 Qw/ST Pads can be connected simultaneously (for multiplayer!)
- 3V to 5V compatible
Multi-Sensor Stick (BME280 + LTR559 + LSM6DS3)
The Multi-Sensor Stick is a 3-in-1 super sensor suite for environmental, light, and movement sensing, with Qw/ST (Qwiic/STEMMA QT) connectors for easy solderless connectivity.
With three powerful sensors packed onto a single slim board, the Multi-Sensor Stick can detect:
- Temperature, Pressure, Humidity — via the Bosch BME280
- Light, Proximity — via the Lite-On LTR-559
- Orientation, Motion — via the STMicroelectronics LSM6DS3 (including step counting, single/double tap detection, and freefall detection)
Sensors
BME280 — Temperature, Pressure, Humidity
| Property | Value |
|---|---|
| Manufacturer | Bosch |
| Part | BME280 |
| I²C Address | 0x76 |
The BME280 is a combined digital humidity, pressure, and temperature sensor. It is great for sensing environmental conditions such as indoor/outdoor weather monitoring, altitude estimation, and climate logging.
LTR-559 — Light and Proximity
| Property | Value |
|---|---|
| Manufacturer | Lite-On |
| Part | LTR-559 |
| I²C Address | 0x23 |
| Light Range | 0.01 lux to 64,000 lux |
| Proximity Range | ~5 cm |
The LTR-559 is an integrated low-voltage ambient light and proximity sensor with an I²C interface. It features IR/UV-filtering and 50/60 Hz flicker rejection for stable readings under artificial lighting.
LSM6DS3 — Accelerometer and Gyroscope
| Property | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Part | LSM6DS3TR-C |
| I²C Address | 0x6a |
| Accelerometer Range | ±2 / ±4 / ±8 / ±16 g full scale |
| Gyroscope Range | ±125 / ±250 / ±500 / ±1000 / ±2000 dps full scale |
The LSM6DS3 is a system-in-package featuring a 3D digital accelerometer and a 3D digital gyroscope. Beyond raw motion data, it includes a rich set of embedded functions for advanced motion detection.
Capabilities:
- 3-axis accelerometer (±2/±4/±8/±16 g selectable full scale)
- 3-axis gyroscope (±125/±250/±500/±1000/±2000 dps selectable full scale)
- Orientation sensing
- Tap and double-tap detection
- Free-fall detection
- Pedometer / step detection
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