三个按键外加一个串口程序问题
本帖最后由 bingshao1006 于 2015-7-4 16:16 编辑用三个按键来做上、下、确定按钮，并将现在的数值通过串口打印出来。
但是这个程序调试了半天都没调出来，哪位能否帮忙看一下？
程序代码如下：int choose_UP_pin = 2;
int choose_DOWN_pin = 3;
int ENTER_pin = 4;
int State_Key = 1;
boolean choose_UP = LOW;
boolean choose_DOWN = LOW;
boolean ENTER = LOW;
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
pinMode(choose_UP_pin,INPUT);
pinMode(choose_DOWN_pin,INPUT);
pinMode(ENTER_pin,INPUT);
}
void loop() {
// put your main code here, to run repeatedly:
choose_UP = digitalRead(choose_UP_pin);
if(choose_UP == HIGH)
{
State_Key++;
if(State_Key == 11)
{
State_Key = 1;
}
while(digitalRead(choose_UP_pin) == HIGH);
}
choose_DOWN = digitalRead(choose_DOWN_pin);
if(choose_DOWN == HIGH)
{
State_Key--;
if(State_Key == 0)
{
State_Key = 10;
}
while(digitalRead(choose_DOWN_pin) == HIGH);
}
ENTER = digitalRead(ENTER_pin);
if(ENTER == HIGH)
{
Serial.write(State_Key);
while(digitalRead(ENTER_pin) == HIGH);
}
}
感觉程序没问题啊。检查一下电路吧 初学者学习
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