GPIO expansion board for Raspberry Pi - 16 pins, I2C
GPIO expansion board for Raspberry Pi - 16 pins, I2C
This goes with it
Pay in 30 days
Pay in 30 days
Description
Product overview
- Expansion board with 16 additional digital GPIO pins for Raspberry Pi 2 and 3
- Connects via a 40-pin header to the GPIO connector of the single-board computer
- I2C-based interface; multiple modules can be connected in parallel to one bus
- Powered by the Raspberry Pi; no separate power supply required
- Addressable via I2C addresses; up to four modules can be combined without soldering
Product description
An expansion board for Raspberry Pi series single-board computers provides 16 additional GPIO pins when the integrated ports of the main board are fully occupied. The module uses the Raspberry Pi's I2C interface and requires only two signal lines, leaving the remaining GPIO pins available. This creates room for additional expansions on the same bus.
The 16 digital outputs and inputs are connected to the Raspberry Pi via the 40-pin header and draw their power directly from the main board. Each module receives its own I2C address and can therefore be controlled individually. Up to four of these boards can be operated in parallel without requiring resistors, jumpers, or soldering.
The board is suitable for applications with multiple sensors and relays, such as controlling pumps, fans, and switching actuators in greenhouses or monitoring multiple pressure switches in machine prototypes. It can also be used for lighting control systems with many inputs and outputs when the Raspberry Pi's native GPIO pins are insufficient.
Operation requires a Raspberry Pi 2, 3, or newer single-board computer. I2C addressing must be configured in the control software. A maximum of 25 milliamps can be switched at each output; external drivers or relays must be connected upstream for higher loads.
Safety information
The module is not intended for installation in household electrical circuits and is exclusively intended for building prototypes and for testing and development purposes. Observe the maximum current draw per output. When working on or near electrical installations, consult a qualified electrician.
Scope of delivery
- 1x GPIO expansion board for Raspberry Pi 2, Pi 3, Model B