SRF02 ultrasonic sensor [Discontinued] _ARD_SHIELD_PROTO just solder a mini vibrating

just solder a mini vibrating motor disc in

and pull the yellow wire to 5V or ground to turn on and off

kids can literally learn and do science that is combined seamlessly with their daily life activities

Do not try to recharge non-rechargeable Lithium coin batteries

Light compact

SRF02 ultrasonic sensor [Discontinued] _ARD_SHIELD_PROTO just solder a mini vibratingThis low cost ultrasonic ranger has both I2C and Serial interfaces. New AutoTune algorithms intelligently back the minimum range right up to the transducer ringdown for the very best performance possible, automatically, in the background, and with no calibration cycles necessary. Additional new commands allow for separate burst and ranging control. The SRF02 features both I2C and a Serial interfaces. The serial interface is a standard TTL level UART