The Sharp distance sensors are a popular choice for many projects that require accurate
distance measurements. This IR sensor is more economical than sonar rangefinders,
yet it provides much better performance than other IR alternatives. Interfacing
to most microcontrollers is straightforward: the single analog output can be connected
to an analog-to-digital converter for taking distance measurements, or the output
can be connected to a comparator for threshold detection. The detection range of
this version is approximately 10 cm to 80 cm (4″ to 32″); a plot of distance
versus output voltage is shown below.

• NOTE: All Sharp sensors from DFRobot are shipped with JST cable.

• Operating Voltage: 4.5V~5.5V
• Average Current consumption: 30mA (typical)
• Distance measuring range: 10~80cm
• Output type: analog voltage
• Output voltage differential over distance range: 1.9V (typical)
• Response time: 38 ± 10 ms
• Package size: 29.5×13.0×13.5mm
• weight: 3.5g

1. Datasheet – SHARP GP2Y0A21YK0F