Pkj：/* Program */

2014-03-29T08:18:54Z

‎Program

2014年3月12日 (三) 12:49 Pkj

2014-03-12T12:49:51Z

Pkj：Created page with "{{Languate | 第十八课--Microduino 4路抢答器}} {| style="width: 800px;" |- | ==Objective== This tutorial will teach you to do a four-way responder using 5 buttons base..."

2014-03-12T12:49:21Z

Created page with "{{Languate | 第十八课--Microduino 4路抢答器}} {| style="width: 800px;" |- | ==Objective== This tutorial will teach you to do a four-way responder using 5 buttons base..."

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{{Languate | 第十八课--Microduino 4路抢答器}}
{| style="width: 800px;"
|-
|
==Objective==

This tutorial will teach you to do a four-way responder using 5 buttons based on Microduino. Four buttons are marked with the number 1 ~ 4 respectively, press the four buttons at the same time, digital tube will display the button number of the first press. The fifth button uses to reset.

==Equipment==
*'''[[Microduino-Core]]'''
*'''[[Microduino-FT232R]]'''
*Other hardware equipment
**Breadboard Jumper one box
**Breadboard one piece
**Button one
**Digital tube one
**10kΩ resistor five
**220Ω resistor one
**USB Data cable one

==Schematic==
[[File:第十八课-Microduino4路抢答器原理图.jpg|600px|center|thumb]]

Pin Table
{| class="wikitable"
|-
! Microduino Pin !! Digitl 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;

void setup() {
//Define used pins
sevseg.Begin(1,2,3,4,5,6,7,8,9,10,11,12,13);
pinMode(1, INPUT); //Pin 1 for button 1
pinMode(2, INPUT); //Pin 2 for button 2
pinMode(3, INPUT); //Pin 3 for button 3
pinMode(4, INPUT); //Pin 4 for button 4

sevseg.PrintOutput();
sevseg.NewNum(0, 4); // initial value is 0

}

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

//Reads the four button pin in cycle
for(int i=1; i<=4; i++) {
if(digitalRead(i)==HIGH) {//Press a button
while(1) {//Display the button number
sevseg.PrintOutput();
sevseg.NewNum(i, 4);
}
}
}
}

</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:第十八课-Microduino4路抢答器连接图.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: At beginning, the digital will display 0, press four buttons at the same time, the digital will display the button number of the fisrt pressed.

==Result==
Digital will display the button number of the first pressed. The most right side is the reset button.
==Video==
http://v.youku.com/v_show/id_XNjgwMzY0MzU2.html

←上一版本		2014年3月29日 (六) 08:18的版本
第50行：		第50行：

	==Program==		==Program==
		+	Download program:
		+	https://github.com/Microduino/Microduino_Tutorials/tree/master/Microduino_Advanced/Microduino4Responder
		+
	<source lang="cpp">		<source lang="cpp">

@@ 第1行： / 第1行： @@
-{{Languate | 第十八课--Microduino 4路抢答器}}
+{{Language | 第十八课--Microduino 4路抢答器}}
 {| style="width: 800px;"
 |-

Lesson 18--Microduino 4-way Responder - 版本历史

Pkj：/* Program */

2014年3月12日 (三) 12:49 Pkj

Pkj：Created page with "{{Languate | 第十八课--Microduino 4路抢答器}} {| style="width: 800px;" |- | ==Objective== This tutorial will teach you to do a four-way responder using 5 buttons base..."