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Application: datasheet

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Brand Name: YUFO-IC

Condition: New

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High-concerned chemical: none

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Origin: Mainland China

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is_customized: Yes

product type: hot sale

Color recognition module TCS3200 color sensor TCS230 upgrade hong ban

product Introduction:

data Download Address: http://pan.baidu.com/s/1i4W2GOt

with Taobao, the most complete of 51 routines. Taobao on some of the routine is only the output frequency, even the most basic of the white balance, there is no white balance, measured the frequency of doesn't make any sense, we of the routine is one of the most complete, white balance, direct output RGB value of.

Color check website http://www.59178.com/tools/sejie.asp

A module design background

with the development of modern industrial production to high-speed, automatic direction of development, the production process has long played a leading role by the human eye of color will be more and more recognition of color sensor the alternative. For example: Library use color to distinguish and were classified, can greatly improve the bookshelves management and statistics, and so on; In the packaging industry, creating packaging with different colors and decoration to represent the different nature or use. The current color sensors are typically independent of the photodiode on the cover, as amended, the red, green, blue filter, and then the output signal processing corresponding to the set to the color signal identified; some will be both together, but the output analog signal, will need A/D circuit collection, the signal for further processing in order to identify the increase the complexity of the circuitry, and there is a big identification error affects the recognition effect of. T() the company's new color sensor TCS3200 is not only able to achieve the color recognition and detection, with the previous color sensor compared to, but also has many excellent features.

Two TCS3200 chip introduction

TCS3200 is T Company launched the programmable color light to the frequency of the converter, it can be configured with the silicon photodiode current-to-frequency converter in a single CMOS circuit, at the same time in a single chip integrated on a red-green-blue (RGB) of three kinds of filter, is the industry's first digital compatible interface of the RGB color sensor, TCS3200 of output signal is digital, may drive the standard TTL or CMOS logic inputs, so it can be directly with the micro-processor or other logic circuit is connected to, because the output is digital, and enables each color Channel 10-bit above the conversion accuracy, and therefore requires no A/D conversion circuit, so that the circuit is simpler.

TCS3200 available in 8-pin SOIC surface mount package, on a single chip integrated 64 of them are located in the photodiode, these diodes are divided into four types, 16 A photodiode with a red filter; 16 a photodiode with a green filter; 16 A photodiode with a blue filter and 16 are in a way that gives you no filter, can all of the light information, these photodiodes in the chip is arranged to cross, to minimize the incident light radiation non-uniformity of the thereby increasing the color recognition of accuracy; On the other hand, the same color of the 16 photodiodes are connected in parallel, uniformly distributed in the diode array, you can eliminate the color of location error. Work through two programmable pin that is dynamically selecting the desired filter, the sensor of the typical output frequencies range from 2Hz-500kHz, the user can also be two programmable PIN-selectable 100%, 20%, or 2% of output scaling factor, or power down mode. The output of the scale factor of the sensor output can be adapted to different measurement range, to improve its ability to adapt to. For example, when using a low-speed of the frequency counter, you can choose a small scaled value, the TCS3200 output frequency and counter matches.

When the incident light is projected onto the TCS3200 when photodiode control pin S2, S3 different combinations, you can select a different filter; after a current-to-frequency converter to output different frequency square wave (the duty ratio is 50%), different color and light intensity corresponds to a different frequency square wave; Can also output calibration control pin S0, s1, choose from a variety of different output scaling factor, thus the output frequency range adjustment, in order to adapt to the different needs.

Here is a brief description of TCS3200 chip each pin of the function and some of its combination options. S0, S1 for selecting the output scale factor or power down mode; S2, s3 for selecting the type of filter; OE anti-frequency output enable pins, you can control the output of the state, when there are a plurality of chip pin shared microprocessor of the output pins, can also be used as a chip select signal, OUT is the frequency output pin GND is a chip of the ground pin, VCC chip operating voltage, Table 1 is S0, S1 and S2, s3 of available combinations.

Three TCS3200 recognition color of principle

(1) The three primary colors of the induction principle

often see the object color, in fact is the object surface absorption irradiated into it the white light (sunlight) and part of the non-ferrous components, and reflect the another portion of the colored light in the eyes of the reaction. White is a variety of frequency of visible light are mixed together, that is to say white light contains a variety of colors of light (such as a red (R), yellow Y, Green G, green V, Blue B, purple P). According to the German physicist Helmholtz (helinholtz) of the three primary colors, we know that, various color is produced by different proportions of the three primary colors (red, green, and blue) mixed.

(2)TCS3200 recognition color of principle

by three primary colors induction principles, it can be learned that if you know the various colors of the three primary colors of the value, will be able to know the test object to change the color of. For TCS3200 for elected set a color filter that allows only certain of the primary colors, to prevent other primary adoption of. For example: When choosing a red filter, the incident light in the only red can, blue and Green is blocked, so that you can get red light intensity of the light at the same time, select a different filter on the user side, we can get the blue light and green light intensity of. Through these three values can be analyzed is projected onto the TCS3200 sensor on the color of light.

(3) the white balance and color recognition principle

white balance is to tell the system what is white. In theory, the white is of equal amounts of red, green, and blue are mixed; but in fact, white in the three primary colors is not exactly equal, and can go a long way toward TCS3200 of light sensor, it is this three basic colors of the sensitivity is not the same, resulting in TCS3200 of RGB output are not equal and, in the test must be carried out before the white balance adjustment, such TCS3200 detected "white" in the three primary colors is the same. The white balance adjustment is to follow-up the color recognition preparation. In the present apparatus, the white balance adjustment of the concrete steps and methods are as follows: the empty tube placed in the sensor of the above the tube is placed over a white light source, the incident light can pass through the tube irradiated onto the TCS3200; According to the preceding method, in turn the gate red, green, and blue filters were obtained by the red, green, and blue values of, and then calculates the need of the 3 adjustment parameters.

When TCS3200 recognition color with the 3 parameters on the measured color of R, G and B adjust. There are two methods to calculate the adjustment of two parameters: 1, sequential gate three color filter, then the TCS3200 of output pulse sequentially count. When the count to 255 stops counting were calculated for each channel of how you choose to spend time, these time corresponds to the actual test TCS3200 each filter of the time reference, during this period of time as measured by the number of pulses is the corresponding R, the G pixels, and the B value of. 2, set the timer is a fixed time (for example, 10ms), then the gate three colors of the filter, the calculation period TCS3200 output of the number of pulses of the calculated a scale factor, through this scaling factors may be the pulse number is 255. In the actual test, the same time count, the measured pulse number multiplied by the leads to the scale factor, and you get the corresponding to the pixels of the R pixels, the G pixels, and the B value of.

Four-module function description

1 baby size: 3CM * 2.7CM (length and width)

2 The Interface Definition: VCC and GND power supply

3 SO-S3 E0 OUT communication interface

4 On-board TCS3200 color sensor;

5 support 3V-5V voltage input;

6 the pins of the chip are all made leads pin as the standard 100mil(2.54mm), convenient for lattice board;

7 module to test a variety of color to the color difference, color Test requirements are higher, please carefully consider after purchase.

8 TCS3200 and of the object under test best distance is about 1cm

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