查看“Microduino-LM75”的源代码

{{Language|Microduino-LM75}}
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[[File: Microduino-LM75.jpg|400px|thumb|right| Microduino-LM75]]

Microduino-LM75 is a digital temperature detection sensor.  





==Features==
*Adopt LM75 temperature sensor with optional addresses. 
*High accuracy and sensitivity;
*Low consumption, long product life and high stability;  
*Wide operation range; 
*Small and easy to install. 

==Specification==
*Electrical specification  
**Operation voltage: 2.8V～5.5V；
**Input device 
*Tech parameters 
*Accuracy: 0.125℃  
*Measurement range: -55℃～+125℃；
*Size  
**Size of the sensor: 5mm*5mm，
**Size of the board: 20mm*10mm
*1.27mm-pitch 4Pin interface;  
*Connection method 
*Interface: IIC  
* Pin description: GND, VCC, signal 1and signal 2. Since the output signal is IIC signal, it needs to use IIC interface to receive signals. Microduino-LM75 can be connected to the pin (1 or 2). , which can be connected the pins (10,1,12) of the Sensorhub with the corresponding pins(A6,A2,A0). 
[[file:mCookie-sensorhub_rule.JPG|thumb|800px|center]]
[[File: Microduino-LM75_I2C.jpg|600px|thumb|center]]

==Document==
*Schematic: '''[[File: Microduino_LM75.Zip]]'''

==Development==
===Preparation===
*Make sure you build Microduino IDE or refer to: [[Microduino Getting started]]
*Core selection 
**1. Adopt [[Microduino-CoreUSB]] or [[mCookie-CoreUSB]] as the core. 
**2. Adopt [[Microduino-Core]] or [[Microduino-Core+]] as the core plus [[Microduino-USBTTL]] as the program download module. 

===Program===
*Open the "test" program in the libraries.  
[[file:mCookie-LM75Test.JPG|thumb|800px|center]]
*include <lm75.h>   Use the library functions of Microduino-LM75. 
*TempI2C_LM75 termo = TempI2C_LM75(0x48,TempI2C_LM75::nine_bits);     Define TempI2C_LM75
*termo.setResolution(TempI2C_LM75::ten_bits);     Set displaying as decimal digits. 
*Serial.print(termo.getTemp());    Display output temperature  

===Hardware Buildup===
*Connect Microduino-LM75 to the IIC interface of Sensorhub with a wire.  
[[Microduino-Sensorhub]]
[[file:Microduino-sensorhub_I2C.PNG|thumb|400px|center]]
[[mCookie-Hub]]
[[file:mCookie-sensorhub_I2C.PNG|thumb|400px|center]]
* Connect the core, Sensorhub and the Microduino-LM75 to a computer with a USB cable. 
* Select the right board and COM port, compile and download.  You can refer to [[AVR Core：Getting started]]
 [[file:upload.JPG|thumb|800px|center]]

*Open Arduino IDE, select File→Examples→Microduino→Sensor_Tem_LM75→test program examples, choose the right board from Tools→Board and then compile.
*Select the right port from Tools→Serial Port in Arduino IDE after compiling, then download program. 
*After download, you can open the serial monitor. The console will print configuration information of Microduino-LM75 and displays the current temperature value circularly. 

==Application==

Microduino-LM75 is suitable for environment temperature detection, which can be used as temperature switch to control an air conditioner or electric fans.  

==Purchase==

==History==

==Pictures==

*Front  
[[file: Microduino-LM75-F.JPG|thumb|600px|center|Microduino-LM75 Front]]
*Back 
[[file: Microduino-LM75 -b.JPG|thumb|600px|center|Microduino-LM75 Back]]
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