A high performance ultrasonic range finder with a range from 3cm to 6m.
Typical current consumption of just 15mA
Features a digital pot to vary the gain as the range increases
This gets over the problem of cross coupling between transmit and receive transducers, which can cause op-amp saturation at close range
The SRF08 does not use the host processor to time the returning echo. All timing is performed by the module
Additionally, the module can cope with multiple echoes, as a buffer can store up to 16 echoes. This allows the module to 'see' through doorways, where a standard type would just see the door frame
A I²C bus is used for communications, and a light sensor is included which is also readable over the I²C bus
