Adafruit MCP23017 I2C GPIO Expander Breakout - Qwiic
This Adafruit MCP23017 I2C GPIO Expander Breakout has 16 GPIO with matching ground pad. We particularly like the '17 as an expander for it's simple no-nonsense capability. It runs from 3V or 5V logic and power. Each GPIO can be an output driving up to 25mA, so LEDs are no problem. Or, each can be an input, with optional pullup. There are two IRQ pins that are configurable for what inputs to keep track of so no I2C bus polling is required. With 3 address pins, you can have up to 8 on a single bus for a total of 8 x 16 = 128 GPIO all on one I2C bus.
The expander comes with two header sets so you can use it in a breadboard, with some soldering. You can also free-wire buttons by connecting one side to the GPIO (set as input with pullup) and the other side to a ground pad. The STEMMA QT connectors on either side are compatible with the SparkFun Qwiic I2C connectors. This allows you to make solderless connections between your development board and the MCP23017 or to chain it with a wide range of other sensors and accessories using a compatible cable.
Quick Spec
- Operating Voltage: 5V/3.3V
- Interface: I2C
- Interrupt Pins: IA, IB
- Dimension: 43mm × 18mm
- Net Weight: 7g
Resources
Shipping List
- 1 x Adafruit MCP23017 I2C GPIO Expander Breakout - Qwiic
- 2 x SIL Male Header Pins
Adafruit MCP23017 I2C GPIO Expander Breakout - Qwiic
- Brand: Adafruit
- Product Code: AF5346
- Weight: 0.007kg
- Product Status : Active
Stock
| Warehouse | Stock Status | Location |
|---|---|---|
| Centurion | In Stock | FF031 |
| Stellenbosch | In Stock | U99 |
We ship free of charge between branches to complete your order.
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R129.00 (Inc Tax: R148.35)
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