Module Name: Face detection module close distance illumination sensor module
Proximity sensor Ambient light + LED + IR sensor TMD2771X triple play
for the phone two main functions, on the one hand is used to detect the
current ambient light (ALS); and using software to adjust the way
according to the current ambient light brightness automatically adjusts
the backlight brightness conditions to suit the ambient brightness ;
soft backlight brightness protect eyesight and can achieve energy-saving
effect ; another function we call the proximity sensor function (PROX),
the use of internal reflection infrared LED emitter role and sensor
built- PD receiver to determine whether the phone during a call near the
face , and thus to determine the state of touch-screen buttons backlit
status ON / OFF.
Compared with the combo products
TSL2771X products, triple device TMD2771X biggest advantage is that it
integrates the infrared emission control, no external LED support.
Internal combo sensor is not set LED, the need for external LED; this
design in hardware / pcb section is not demanding , but the power LED is
a more important problems .
Sensor itself consistency TAOS
process process can be control, but the LED because of its semiconductor
devices discrete ( this is an inherent characteristic ) , will make the
actual production requires strict control of LED power level in the
production process that there will be some inconvenience .
In
addition , three sensors have the transmitter / receiver and integrated
design minimized, design and installation of more no space constraints ,
the structural part of the requirements will be relatively simple. The
actual design of the sensor when the combo important consideration
within the device after loading mechanism inside the diffraction
problem, so when the agency must pay attention to the design of the
partition between the transmitter and the receiver ; If the panel has
openings issues ( including coated ink holes ) also need to take full
account of the open area ( hole diameter main consideration ) and the
installation location from the panel surface height , and as a basis for
the decision whether or not the light pipe installation / installation.
Triple sensor inside the device has been made with stainless steel cut
off ; However, due to the smaller sensor body size (2.4 * 4.0 * 1.4 ) ,
integrated into external isolation also makes it relatively difficult to
implement , so the actual design time need to pay attention to related
issues, followed by a detailed reference mechanism design
recommendations.
Package Included:
1PCS*TMD27713 Face detection close distance illumination sensor module for arduino
ماژول TMD27713 - Face Detection Module
- تولید کننده: ساخت چين - China
- کد محصول: D200_2L022_00450
- موجودی: سفارش از خارج