TCRT5000 Chip:

Works TCRT5000 sensors and infrared sensors generally as a pass for a sense .TCRT5000 has an infrared emitter and an infrared receiver tube. When the infrared emission of the reflected signal is received by the receiver tube, receiving tube resistance will change , the circuit is generally in the form of voltage change reflected, and after the ADC conversion circuit such as plastic or LM324 output result obtained after the treatment. since the resistance change take on the intensity of the infrared signal received by the receiving tube, often show the reflecting surface . the color and the reflective surface of the distance between the receiver tube hardware reference schematics two aspects as follows:

Black TCRT5000 Product Usage:

Blue TCRT5000 Product Usage:

1 sensor adopts TR5000, high sensitivity
2 sensitivity adjustable digital potentiometer to adjust (blue)
3 modules can induction block from 0 to 3 cm
4-5 V working voltage 3.3 V
5 a output form output analog voltage (0 to 5 v)
B digital switch output (0 and 1)
6 has a fixed bolt hole, convenient installation
7 small board PCB size: 3.5 cm * 1.5 cm
8 power indicator light (red) and digital switch output indicator light (green)
9 comparator USES the LM393 chips, work stability
Three small plate interface specifications wire (4)
1 VCC external 3.3 V to 5 V
2 GND external GND
3 DO small plate digital output interface (0 and 1)
4 small AO plate analog output interface (0 to 5 v)
Four instructions
1 module can be used to intelligent tracing car obstacle avoidance, material testing, color detection
2 modules in shining or keep out the distance is greater than the set threshold the DO output high level, when the module block distance is less than the setting threshold, module D0 output low level;
3 small plate digital output D0 can be attached directly to the microcontroller, through single chip microcomputer to detect the high and low level, thus to detect whether the modules are triggered;
4 small plate digital output DO can directly drive our relay module, which can be composed of a photoelectric switch;
5 small plate analog output can AO and AD modules are linked together, through the AD conversion, can module are obtained and the obstructions of distance.