PT2258 control
Digital Audio Volume Control Circuit – PT2258 adatlap
PT2258 control felépítés
PT2258 control és Arduino nano kapcsolási rajz
Arduino program:
#include <PT2258.h>
#include <ezButton.h>
#include <Wire.h>
PT2258 pt2258; // PT2258 Object
ezButton button_1(2); //Button_1 Object
ezButton button_2(4); //Button_2 Object
int volume = 40; // Default volume / Starting Volume
void setup() {
Serial.begin(9600); //UART begin
Wire.setClock(100000); // setting the I2C clock to 100KHz
/* checking if the MCU can talk with the PT or not*/
if (!pt2258.init())
Serial.println(„PT2258 Successfully Initiated”);
else
Serial.println(„Failed to Initiate PT2258”);
/* Setting up button debounce delay*/
button_1.setDebounceTime(50);
button_2.setDebounceTime(50);
/* Initiating PT with default volume and Pin*/
pt2258.setChannelVolume(volume, 5); // 4
pt2258.setChannelVolume(volume, 6); // 5
}
void loop() {
button_1.loop(); //Library norms
button_2.loop(); //Library norms
/* If button 1 is pressed if condition is true*/
if (button_1.isPressed())
{
volume++; // Incrementing the volume counter.
// this if statement ensures the volume does not goes above 79
if (volume >= 79)
{
volume = 79;
}
Serial.print(„volume: „); // Printing the volume level
Serial.println(volume);
/*Set the volume for channel 5 (4)
Which is in PIN 9 of the PT2258 IC
*/
pt2258.setChannelVolume(volume, 5); // 4
/*Set the volume for channel 6 (5)
Which is the Pin 10 of the PT2258 IC
*/
pt2258.setChannelVolume(volume, 6); // 5
}
//The same happens for the button 2
if (button_2.isPressed())
{
volume–;
// this if statement ensures the volume level doesn’t go below zero.
if (volume <= 0)
volume = 0;
Serial.print(„volume: „);
Serial.println(volume);
pt2258.setChannelVolume(volume, 5); // 4
pt2258.setChannelVolume(volume, 6); // 5
}
}
Üzenet küldés: ITT