The 80cm Infrared Proximity Sensor is a General Purpose Type Distance Measuring Sensor, this sensor takes a continuous distance reading and returns a corresponding analog voltage with a range of 10cm (4″) to 80cm (30″). Can be used in TVs, personal computers, cars, and so on.
Interface: This sensor is quite small and uses a tiny connector called the Japan Solderless Terminal (JST) connector. These connectors have three wires: ground, VCC, and output. Because the sensor fire continuously and don’t need any clock to initiate a reading, it is easy to interface with any microcontroller. for the seeeduino, the wire converts the 3-wire to 4-wire to be compatible with the twig interface of Grove.