GP2Y0A21YK0F Sharp Infrared Range Sensor
We can build electronics projects just as easy as piling bricks. Arduino and community have made the programming much easier than ever before. How about some elixir on hardware part? Maybe it is not yet convenient to make complex interfaces, but we can at least start from the most commonly used modules.
By using electronic bricks, you may connect Arduino compatible boards easily with various digital, analog and I2C/Uart interfaces. These the breadboard-less firm connection are prepared to extensive modules like poteniometers, sensors, relays, servos...even buttons, just plug and play.
Each terminal module has buckled port with VCC, GND and Output, which has corresponding port on the sensing board, with a plain 2.54mm dual-female cable you may start playing already. Buckled brick cables are like cement for bricks, make the connections easier, secure and more professional looking.
This module can be used with Arduino Sensor Shield.
You can do some simple design about it，it support“plug and play”.
Description
Infrared proximity sensor made by Sharp. Part # GP2Y0A21YK has an analog output that varies from 3.1V at 10cm to 0.4V at 80cm. The sensor has a Japanese Solderless Terminal (JST) Connector. We recommend purchasing the related pigtail below or soldering wires directly to the back of the module.
And compare with GP2D12, GP2Y0A21YK0F have more stable function and performance、lower power consumption.
Specifications
1、Measuring Detecting distance : 10 to 80 cm
2、The maximum allowable Angle : > 40 °
3、The power supply voltage : 4.5 to 5.5 V
4、The average power consumption : 35 mA
5、Peak power consumption : about 200 mA
6、The frequency of updates/cycle : 25 Hz/40 ms
7、Analog output noise : < 200 mV
8、Less influence on the color of reflective objects, reflectivity
9、Line-up of distance output/distance judgement type ：
Distance output type (analog voltage) : GP2Y0A21YK
Distance judgement type : GP2Y0D21YK
Judgement distance : 24cm
(Adjustable within the range of 10 to 80cm [Optionally available])
10、External control circuit is unnecessary
11、Low cost
Arduino take six channel 10 ADC with itself, so we can directly connect the GP2D12 sensor with Arduino analog interface, and read the feedback value of this sensor.
According to the official manual, it is known that the output of the GP2D12 is 0.4 V ~ 2.4 V analog signals, corresponding 10 ~ 80 cmkjtance, output is inversely proportional to distance, and nonlinear.
