Pkj：/* Program */

2014-03-29T08:15:18Z

‎Program

Pkj：Created page with "{{Language | 第十七课--Microduino 独立按键让数码管加减}} {| style="width: 800px;" |- | ==Objective== This tutorial will teach you how to use the buttons to add ..."

2014-03-12T12:47:49Z

Created page with "{{Language | 第十七课--Microduino 独立按键让数码管加减}} {| style="width: 800px;" |- | ==Objective== This tutorial will teach you how to use the buttons to add ..."

新页面

{{Language | 第十七课--Microduino 独立按键让数码管加减}}
{| style="width: 800px;"
|-
|
==Objective==

This tutorial will teach you how to use the buttons to add and subtract the digital tube displayed value. There are two buttons, one is used to increase the value, another is used to decrease value.

==Equipment==
'''[[Microduino-Core]]'''
'''[[Microduino-FT232R]]'''
*Other hardware equipment
**Breadboard Jumper one box
**Breadboard one piece
**Digital tube one
**Buttos two
**220Ω (100Ω~1kΩ) one
**USB Data cable one

==Schematic==
[[File:第十七课-Microduino独立按键让数码管加减原理图.jpg|600px|center|thumb]]

Pin Table
{| class="wikitable"
|-
! Microduino Pin !! Digital Tube Pin
|-
| D10 || 1
|-
| D9 || 2
|-
| D5 || 3
|-
| D8 || 4
|-
| D13 || 5
|-
| D7 || 6
|-
| D6 || 7
|-
| Not used || 8
|-
| D11 || 9
|-
| D12 || 10
|}

==Program==
<source lang="cpp">

#include "SevSeg.h"
SevSeg sevseg;
int i=5;

void setup() {
//Define used pins
sevseg.Begin(1,2,3,4,5,6,7,8,9,10,11,12,13);
pinMode(2, INPUT); //D2 use to add
pinMode(3, INPUT); //D3 use to subtract

sevseg.PrintOutput();
sevseg.NewNum(i, 4);

}

void loop() {
//Enable the output function
sevseg.PrintOutput();

if(digitalRead(2)==HIGH) {//If press button 2
i++;
sevseg.NewNum(i, 4);
delay(200); //Delay 50ms
}
else if(digitalRead(3)==HIGH) {//If press button 3
i--;
sevseg.NewNum(i, 4);
delay(200); //Delay 50ms
}

}

</source>

==Debug==
Fristly download the library, uncompress it and put to libraries folder of Arduino IDE, then restart Arduino IDE to load library.

Library link：https://docs.google.com/file/d/0Bwrp4uluZCpNN1Q4dmFZX1MzWVE/edit

This library can drive 4bits digital tube and support number, decimal point and easy to use.

Step 1：Copy the code to IDE and compile it

Step 2：Set up circuit, as follows:

[[File:第十七课-Microduino独立按键让数码管加减连接图.jpg|600px|center|thumb]]
There are two buttons and use the same connection. One end connects to power and on the other end, a signal line and GND in parallel.

Step 3：Run program

Step 4：Digital displays initial value 5, then press that two buttons respectively, what will happen!!

==Result==

Press two buttons respectively, the value will increase one or decrease one.

==Video==

http://v.youku.com/v_show/id_XNjc2ODQ3NDM2.html

←上一版本		2014年3月29日 (六) 08:15的版本
第48行：		第48行：

	==Program==		==Program==
		+	Download program:
		+	https://github.com/Microduino/Microduino_Tutorials/tree/master/Microduino_Advanced/MicroduinoDigitalSubtraction
		+
	<source lang="cpp">		<source lang="cpp">

Lesson 17--Microduino Button Control Digital Tube - 版本历史

Pkj：/* Program */

Pkj：Created page with "{{Language | 第十七课--Microduino 独立按键让数码管加减}} {| style="width: 800px;" |- | ==Objective== This tutorial will teach you how to use the buttons to add ..."