Gravity: I2C HUB

This Gravity: I2C HUB module is designed to connect up to 8 I2C devices to a main-controller, which allows you easily to hook up multiple I2C devices in project building, for instance, use Gravity-4P I2C/UART sensor cable to connect with Gravity modules or use Jumper Wire to connect with Breakout modules.

• PCB dimensions: 37mm × 27mm
• Mounting hole spacing: 30mm × 20mm
• Mounting hole diameter: 3.1mm
• Weight: 17g

• Gravity: I2C HUB     x1
• Gravity-4P I2C/UART Sensor Cable  x1  

Project: Making an Alarm Clock That Asks Question Randomly

Introduction: I got two very interesting small modules from DFRobot, one is the speech synthesis module and the other is the speech recognition module.
I will make a slightly gentler one here. An alarm clock with random questions. It will stop making noise if the answer is correct; if the answer is incorrect, it will keep annoying you.