ARDUINO-ATMEGA328P-AU-Rotate Encoder-2Channel-PWM

ID:486426 · 发表于 2020-2-3 08:29

#include <Arduino.h>//ATMEGA328P-AU-2Channel-PWM.ino
#define PIN_ENT 6 //编码器的按钮接6
#define PIN_ENA 7 //编码器的a脚接7
#define PIN_ENB 8 //编码器的b脚接8
#define PIN_VOL 9 //PWM电平模拟电压输出1,可以更换其它 PWM 输出引脚3,10
#define PIN_CUR 5 //PWM电平模拟电压输出2,可以更换其它 PWM 输出引脚3,10
#define PIN_zhshi 11 // 编码器调节PWM指示
int v_temp = 48; //PWM输出1占空比初值
int c_temp = 12; //PWM输出2占空比初值
boolean Pmode = true;//true--调节PWM输出1 false--调节PWM输出2
volatile uint8_t a0, b0;
int c0 = 1; //定义变量存以储读值
void setup()
{
pinMode(PIN_VOL, OUTPUT);//
pinMode(PIN_CUR, OUTPUT);//
pinMode(PIN_zhshi, OUTPUT);//
digitalWrite(PIN_zhshi, HIGH);
pinMode(PIN_ENA, INPUT_PULLUP);//
pinMode(PIN_ENB, INPUT_PULLUP);//
pinMode(PIN_ENT, INPUT);//
Serial.begin(9600);
// setup pin change interrupt for rotary encoder
PCMSK0 = bit (PCINT0); // Configure pin change interrupt on Pin8
PCICR = bit (PCIE0); // Enable pin change interrupt
PCIFR = bit (PCIF0); // Clear interrupt flag
a0 = PINB & 1;
b0 = PIND>>7 & 1;
//c0 = digitalRead(PIN_ENT);
}
void loop()
{
PINENTCheck();
analogWrite(PIN_VOL,v_temp);//
analogWrite(PIN_CUR,c_temp);//
}
// check and activate/deactivate boost mode
void PINENTCheck(void)
{
uint8_t c = digitalRead(PIN_ENT);
if (!c && c0) {
// check rotary encoder switch
// delay(10);
// val = digitalRead(PIN_ENT);
if(Pmode == false)//切换PWM通道
{
Pmode = true;
digitalWrite(PIN_zhshi, HIGH);
}
else
{
Pmode = false;
digitalWrite(PIN_zhshi, LOW);
}
}
c0 = c;
}
// Pin change interrupt service routine for rotary encoder
ISR (PCINT0_vect)
{
uint8_t a = PINB & 1;
uint8_t b = PIND>>7 & 1;
if (a != a0) // A changed
{
a0 = a;
if (b != b0) // B changed
{
b0 = b;
if (a == b)
{
if (Pmode == true)
{
v_temp++;;
if (v_temp > 255) {v_temp = 255;}
}
else if ( Pmode == false)
{
c_temp++;;
if (c_temp > 255) {c_temp = 255;}
}
}
else if (a != b)
{
if ( Pmode == true)
{
v_temp--;
if (v_temp < 1) {v_temp = 1;}
}
else if ( Pmode == false)
{
c_temp--;
if (c_temp < 1) {c_temp = 1;}
}
}
}
}
}

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ARDUINO-ATMEGA328P-AU-Rotate Encoder-2Channel-PWM

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