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产品详情：
（1）产品优势：
超大视窗，无需刻意对焦，智能自动感应扫码；
大视角，识读范围广，360度任意扫码；
快速准确地读取屏二维码；
提供Micro USB接口和串口,满足更多接口需求；
（2）简介
NT3115条码识读引擎，应用了智能图像识别技术，采用先进的光学设计，提供高性能、高可靠、低功耗的识读产品。
NT3115具有白光LED提供曝光辅助照明。照明功能可以通过设置选择开启或关闭。
NT3115不提供瞄准指示，只要条码在NT3115的识读角度和景深范围内均可以进行识读。
(3)接口参数
?12 PIN接口（0.5mm间距）
Pin No. Signal Name Type Description
1 VDD1 Input Power supply: 4V to 5.5VDC, the typical is 5VDC
2 VDD2 Input/output Power supply: 3.15 to 3.45VDC, the typical is 3.3VDC; Or 3.3V output (max 100mA output current) when VDD1 is 5VDC input
3 GND Input Power/signal ground: 0V reference
4 RX Input Serial data receive input port,3.3V TTL
5 TX Output Serial data transmit port, 3.3V TTL
6 USB_D- Input/ Output USB_D- signal
7 USB_D+ Input/ Output USB_D+ signal
8 Power_en/
Ext_input Input Power_en or ext_input, please choose your needed type.
Power_en: the high level shut down the model, the low level turn on the module, the high level turn off the module, the function only work when vdd1 power input.
Ext_input: can be used as external input such as external trigger control input or other input.
9 BEEP Output Beeper output control pin, the logic high indicates to open beeper, the driving current is 20mA.
10 LED Output LED output control pin, the logic high indicates to open LED, the driving current is 20mA
11 Ext_output Output External output: can used as external illumination or other output indication; support PWM or GPIO mode
12 TRIG Input Hardware triggering line, driving the pin low more than 10ms causes the engine to start to capture the image and decode.
Note: About power supply there are two application case, case1:VDD1 is 5VDC input and VDD2 is used as 3.3V output or null; case2: VDD1 is null and VDD2 is 3.3VDC input.
?6PIN接口（1.5mm间距）(JP14)
Pin No. Signal Name Type Description
1 VDD1 Input Power supply: 4V to 5.5VDC, the typical is 5VDC
2 TX Output Serial data transmit port, 3.3V TTL
3 RX Input Serial data receive input port,3.3V TTL
4 GND Input Power/signal ground: 0V reference
5 D- Data minus USB virtual COM data minus
6 D+ Data plus USB virtual COM data plus
?4PIN MicroUSB接口 (U4)
Pin No. Signal Name Type Description
1 VBUS Power input Power supply: 4V to 5.5VDC, the typical is 5VDC
2 D? Data minus USB data minus
3 D+ Data plus USB data plus
4 GND Ground Power/signal ground: 0V reference
（4）规格参数
?规格参数 Parameters
传感器Sensor CMOS sensor, pixels: 640*480,30 fps
照明Illumination LED白光/White LED
扫描视角
Field of view Angle 80水平)，60(垂直) 度（单位）
80（H），60（V） degree（unit）
倾角 / 仰角 / 斜角
Tilt /Pitch / Skew 360 / ±65 / ±65 度（单位）
360 / ±65 / ±65 degree（unit）
识别速度
Motion Tolerance 最大20厘米/秒 （13mil UPC）
Up to 20cm per second for 13mil UPC
电源 / 电流
Voltage / Current
5.0VDC±5% / 120mA(Max.),100mA(Typical)
码制 Code 1D: Code 39, Code 32, Code 128, UPC/EAN/JAN, Code 93, Interleaved 2 of 5,
Codabar, Matrix 2 of 5, Industrial 2 of 5
2D: QR Code, Data Matrix, PDF417
典型性能
Typical Performance 13mil UPC (30-135mm)
13mil Code39 (30-150mm)
20mil QR (30-200mm)
工作温度
Operating temperature
-20°C ~ +60°C
储存温度
Storage temperature
-40°C ~ +85°C
工作湿度
Humidity 5% ~ 95%（非凝结态）
5% ~ 95%（non-condensing）
（5）出厂设置Factory default settings：
接口Interface USB HID、USB COM和TTL UART
打开码制Enabled Codes 1D: Code 39 ,Code 32, Code 128, UPC, EAN, JAN, Code 93, Codabar, Matrix 2 of 5, Industrial25
2D: QR Code, Data Matrix, PDF417