Optical Flow image Sensor (Position Measuring By Image Processing) 3 Axis Gyroscope This sensor can be useful

This sensor can be useful when you want a circuit to be able to respond to knocks that a user makes against them to turn on or off some load

Chip : L298N

It is suitable for detecting Alcohol

and also digital signal which would be more easy to use

Optical Flow image Sensor (Position Measuring By Image Processing) 3 Axis Gyroscope This sensor can be usefulIntroduction: This sensor is based on the idea of optical mouse (image sensor). It senses the image (camera sensor) of a surface or an object by taking very large number of images (frames) in short time. Using build in image processing algorithm, then the displacement of the object can be defined. Connections: How it works The mouse sensor returns the average movement (in the x and y directions) of surface features that it sees. A single pixel move