查看“Microduino-Hall”的源代码

{{Language|Microduino-Hall }}
{| style="width: 800px;"
|-
|
[[File: Microduino-Hall.jpg|400px|thumb|right| Microduino-Hall]]

Microduino-Hall is the Hall sensor module, which can detect magnetic filed.

Microduino-Hall sensor is based on Hall Effect, as one of the magnetoelectric effect, which was found by A.H.Hall in 1879 when he was studing metal’s conductive mechcanism. 






==Features==
*High detection flexibility and stability. 

==Specification==
*Electrical specification 
**Output: Digital signal
**3.3V~5V operation voltage;
*Tech parameter 
**Pin description: GND, VCC, signal output and NC(Empty). 
**Digital output

**Size of the sensor: 5mm*5mm，
**Size of the board: 20mm*10mm
*1.27mm-pitch 4Pin interface connects with Sensorhub.  

*Connection method 
Note: Here we adopt digital signal output and need to use digital interfac to detect (D0~D13), which can connect to the number 3~9 pin of the Sensorhub, that is, D0,D2,D4,D6,D8,D10 and D12.  

[[file:mCookie-sensorhub_rule.JPG|thumb|800px|center]]

[[File: Microduino-Hall_rule1.jpg|600px|thumb|center]]

==Document==

*Schematic:'''[[File: Microduino_Hall.Zip]]'''

==Development==
===Preparation===
*Make sure you’ve built Microduino IDE or you can refer to: [Microduino Getting started]]
*Core board selection 
**1.Adopt [[Microduino-CoreUSB]] or [[mCookie-CoreUSB]] as the core. 
**2.Adopt [[Microduino-Core]] or [[Microduino-Core+]] as the core and [[Microduino-USBTTL]] asthe program download module. 

===Program===

*Open Arduino IDE, select File→Examples→Basics→DigitalReadSerial program examples, choosethe right board, compile and download. 
[[file:mCookie-crashCodeExample.JPG|thumb|800px|center]]

*int pushButton = 6;   Define the input pin as D6, which can be changed by users according to personal needs. 
*pinMode(pushButton, INPUT);    Define pushButton as the input pin.
*int buttonState = digitalRead(pushButton);    Read pushButton as the value of the input pin./

===Hardware Buildup===
*Connect the Hall sensor and Sensorhub to the D6 digital port, which is also the pin of “pushButton”mentioned above. 
*For reference: [[Microduino-Sensorhub]]
[[file:Microduino-sensorhub_6.JPG|thumb|400px|center]]
*For reference: [[mCookie-Hub]]
[[file:mCookie-sensorhub_6.JPG|thumb|400px|center]]
*Connect the core, Sensorhub and Hall together 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 the serial monitor after download. The return value is “1” when it detects no magnetic field. By getting close to the Hall sensor with a magnet, you can get the return value “0” when detecting the magnetic field. 


==Application==
[[file: Microduino-Hall-1.JPG|thumb|180px|center|Microduino-Hall Front]]

If Hall’s starting voltage is high level(V<small>+</small>), its surrounding magnetic field strength becomes intensified. When the intensity is bigger than B<small>np</small>, the output voltage between the two sides of the Hall sensor is the low level (V<small>-</small>). It keeps the same for the reverse.  
*Suitable for detecting magnetic field and replacable switch function. 

===Project===


==Purchase==

==History==

==Pictures==

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