R2S15902FP Arduino Library with Basic Arduino Code
April 09, 2023
In this article I have explained a R2S15902FP Arduino library and basic Arduino code for testing. Included all features of the R2S15902FP in this library and included the circuit diagram and PCB design for testing. You can build best 5.1 surround sound system with these.
R2S15902FP is best 5.1 audio converter and 6 channel volume controller IC. You can build better quality 5.1 amplifier with this IC.
Features
- Input gain control
- 6 channels independent volume control
- 6 channels independent gain control
- Tone control: Bass and Treble
- L/R channel 4 input selector
- Multi channel input: 6 channels input
If you need more about the R2S15902FP, Please check the datasheet. I have attached end of this article.
Hardware
R2S15902FP is a SMD component. It can't connect to the breadboard for testing. So I have created a PCB design for testing. You can make the testing board with this. I have attached all files end of this article. In the Microcontroller section I am using the Arduino UNO board, Check the circuit diagram below.
Programming
After completing the hardware section successfully, then start the programming. First of all, create the library files and put into the Arduino's library folder in your PC. Its have two files for the library. Check the library code below.
R2S15902FP.h
Copy
#ifndef R2S15902FP_h
#define R2S15902FP_h
#include "Arduino.h"
class R2S15902FP {
public:
R2S15902FP(int data, int clk);
void slot1(int in, int rec_out, int rec_gain, int att, int lr_in, int bass, int treble, int sl_sr_c_sw_in, int in_gain);
void slot2(int lch_gain, int lch_vol, int rch_gain, int rch_vol);
void slot3(int cch_gain, int cch_vol, int swch_gain, int swch_vol);
void slot4(int slch_gain, int slch_vol, int srch_gain, int srch_vol);
private:
int _data;
int _clk;
};
#endif
R2S15902FP.cpp
Copy
#include "Arduino.h"
#include "R2S15902FP.h"
//Data
bool in_data[5][3]={{0,0,0},{0,1,0},{1,0,0},{1,1,0},{0,0,1}}; // Input Selector
bool rec_gain_data[4][2]={{0,0},{0,1},{1,0},{1,1}}; // REC-Output Gain Control
bool att_data[4][2]={{0,0},{0,1},{1,0},{1,1}}; // ADC Input ATT
bool tone_data[15][4]={{0,1,1,1},{0,1,1,0},{0,1,0,1},{0,1,0,0},{0,0,1,1},{0,0,1,0},{0,0,0,1},{1,0,0,0},{1,0,0,1},{1,0,1,0},{1,0,1,1},{1,1,0,0},{1,1,0,1},{1,1,1,0},{1,1,1,1}}; // Bass/Treble
bool gain_data[8][3]={{0,0,0},{0,0,1},{0,1,0},{0,1,1},{1,0,0},{1,0,1},{1,1,0},{1,1,1}}; // Gain Control
bool ch_vol_data[100][7] ={{1,1,0,0,0,1,1},{1,1,0,0,0,1,0},{1,1,0,0,0,0,1},{1,1,0,0,0,0,0},{1,0,1,1,1,1,1},{1,0,1,1,1,1,0},{1,0,1,1,1,0,1},{1,0,1,1,1,0,0},{1,0,1,1,0,1,1},{1,0,1,1,0,1,0},{1,0,1,1,0,0,1},{1,0,1,1,0,0,0},{1,0,1,0,1,1,1},{1,0,1,0,1,1,0},{1,0,1,0,1,0,1},{1,0,1,0,1,0,0},{1,0,1,0,0,1,1},{1,0,1,0,0,1,0},{1,0,1,0,0,0,1},{1,0,1,0,0,0,0},{1,0,0,1,1,1,1},{1,0,0,1,1,1,0},{1,0,0,1,1,0,1},{1,0,0,1,1,0,0},{1,0,0,1,0,1,1},{1,0,0,1,0,1,0},{1,0,0,1,0,0,1},{1,0,0,1,0,0,0},{1,0,0,0,1,1,1},{1,0,0,0,1,1,0},{1,0,0,0,1,0,1},{1,0,0,0,1,0,0},{1,0,0,0,0,1,1},{1,0,0,0,0,1,0},{1,0,0,0,0,0,1},{1,0,0,0,0,0,0},{0,1,1,1,1,1,1},{0,1,1,1,1,1,0},{0,1,1,1,1,0,1},{0,1,1,1,1,0,0},{0,1,1,1,0,1,1},{0,1,1,1,0,1,0},{0,1,1,1,0,0,1},{0,1,1,1,0,0,0},{0,1,1,0,1,1,1},{0,1,1,0,1,1,0},{0,1,1,0,1,0,1},{0,1,1,0,1,0,0},{0,1,1,0,0,1,1},{0,1,1,0,0,1,0},{0,1,1,0,0,0,1},{0,1,1,0,0,0,0},{0,1,0,1,1,1,1},{0,1,0,1,1,1,0},{0,1,0,1,1,0,1},{0,1,0,1,1,0,0},{0,1,0,1,0,1,1},{0,1,0,1,0,1,0},{0,1,0,1,0,0,1},{0,1,0,1,0,0,0},{0,1,0,0,1,1,1},{0,1,0,0,1,1,0},{0,1,0,0,1,0,1},{0,1,0,0,1,0,0},{0,1,0,0,0,1,1},{0,1,0,0,0,1,0},{0,1,0,0,0,0,1},{0,1,0,0,0,0,0},{0,0,1,1,1,1,1},{0,0,1,1,1,1,0},{0,0,1,1,1,0,1},{0,0,1,1,1,0,0},{0,0,1,1,0,1,1},{0,0,1,1,0,1,0},{0,0,1,1,0,0,1},{0,0,1,1,0,0,0},{0,0,1,0,1,1,1},{0,0,1,0,1,1,0},{0,0,1,0,1,0,1},{0,0,1,0,1,0,0},{0,0,1,0,0,1,1},{0,0,1,0,0,1,0},{0,0,1,0,0,0,1},{0,0,1,0,0,0,0},{0,0,0,1,1,1,1},{0,0,0,1,1,1,0},{0,0,0,1,1,0,1},{0,0,0,1,1,0,0},{0,0,0,1,0,1,1},{0,0,0,1,0,1,0},{0,0,0,1,0,0,1},{0,0,0,1,0,0,0},{0,0,0,0,1,1,1},{0,0,0,0,1,1,0},{0,0,0,0,1,0,1},{0,0,0,0,1,0,0},{0,0,0,0,0,1,1},{0,0,0,0,0,1,0},{0,0,0,0,0,0,1},{0,0,0,0,0,0,0}}; // Channels Volume
R2S15902FP::R2S15902FP(int data, int clk) {
pinMode(data, OUTPUT);
pinMode(clk, OUTPUT);
_data = data;
_clk = clk;
}
void R2S15902FP::slot1(int in, int rec_out, int rec_gain, int att, int lr_in, int bass, int treble, int sl_sr_c_sw_in, int in_gain) {
// D0a - D2a
for (int i = 0; i < 3; i++) {
digitalWrite(_data, in_data[in][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D3a
digitalWrite(_data, rec_out);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D4a - D5a
for (int i = 0; i < 2; i++) {
digitalWrite(_data, rec_gain_data[rec_gain][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D6a - D7a
for (int i = 0; i < 2; i++) {
digitalWrite(_data, att_data[att][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D8a
digitalWrite(_data, lr_in);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D9a - D12a
for (int i = 0; i < 4; i++) {
digitalWrite(_data, tone_data[bass][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D13a - D16a
for (int i = 0; i < 4; i++) {
digitalWrite(_data, tone_data[treble][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D17a
digitalWrite(_data, sl_sr_c_sw_in);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D18a - D20a
for (int i = 0; i < 3; i++) {
digitalWrite(_data, gain_data[in_gain][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D21a
digitalWrite(_data, LOW);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D22a
digitalWrite(_data, LOW);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D23a
digitalWrite(_data, LOW);
digitalWrite(_clk, HIGH);
digitalWrite(_data, HIGH);
digitalWrite(_clk, LOW);
digitalWrite(_data, LOW);
}
void R2S15902FP::slot2(int lch_gain, int lch_vol, int rch_gain, int rch_vol) {
// D0b - D2b
for (int i = 0; i < 3; i++) {
digitalWrite(_data, gain_data[lch_gain][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D3b - D9b
for (int i = 0; i < 7; i++) {
digitalWrite(_data, ch_vol_data[lch_vol][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D10b - D12b
for (int i = 0; i < 3; i++) {
digitalWrite(_data, gain_data[rch_gain][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D13b - D19b
for (int i = 0; i < 7; i++) {
digitalWrite(_data, ch_vol_data[rch_vol][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D20b
digitalWrite(_data, LOW);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D21b
digitalWrite(_data, LOW);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D22b
digitalWrite(_data, LOW);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D23b
digitalWrite(_data, HIGH);
digitalWrite(_clk, HIGH);
digitalWrite(_data, HIGH);
digitalWrite(_clk, LOW);
digitalWrite(_data, LOW);
}
void R2S15902FP::slot3(int cch_gain, int cch_vol, int swch_gain, int swch_vol) {
// D0c - D2c
for (int i = 0; i < 3; i++) {
digitalWrite(_data, gain_data[cch_gain][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D3c - D9c
for (int i = 0; i < 7; i++) {
digitalWrite(_data, ch_vol_data[cch_vol][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D10c - D12c
for (int i = 0; i < 3; i++) {
digitalWrite(_data, gain_data[swch_gain][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D13c - D19c
for (int i = 0; i < 7; i++) {
digitalWrite(_data, ch_vol_data[swch_vol][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D20c
digitalWrite(_data, LOW);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D21c
digitalWrite(_data, LOW);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D22c
digitalWrite(_data, HIGH);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D23c
digitalWrite(_data, LOW);
digitalWrite(_clk, HIGH);
digitalWrite(_data, HIGH);
digitalWrite(_clk, LOW);
digitalWrite(_data, LOW);
}
void R2S15902FP::slot4(int slch_gain, int slch_vol, int srch_gain, int srch_vol) {
// D0d - D2d
for (int i = 0; i < 3; i++) {
digitalWrite(_data, gain_data[slch_gain][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D3d - D9d
for (int i = 0; i < 7; i++) {
digitalWrite(_data, ch_vol_data[slch_vol][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D10d - D12d
for (int i = 0; i < 3; i++) {
digitalWrite(_data, gain_data[srch_gain][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D13d - D19d
for (int i = 0; i < 7; i++) {
digitalWrite(_data, ch_vol_data[srch_vol][i]);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
}
// D20d
digitalWrite(_data, LOW);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D21d
digitalWrite(_data, LOW);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D22d
digitalWrite(_data, HIGH);
digitalWrite(_clk, HIGH);
digitalWrite(_data, LOW);
digitalWrite(_clk, LOW);
// D23d
digitalWrite(_data, HIGH);
digitalWrite(_clk, HIGH);
digitalWrite(_data, HIGH);
digitalWrite(_clk, LOW);
digitalWrite(_data, LOW);
}
Arduino Code
Connect your Arduino board to the PC then upload the 'audio.ino' file from the downloaded folder. You can create the Arduino file with the below code. I have added 'Serial print' function in Arduino code. So you can see the particular feature's values in the Serial Monitor. This code is developed for testing purpose. But you can develop a good remote kit with these.
audio.ino
Copy
#include <R2S15902FP.h>
R2S15902FP R2S15902FP(5, 6); // (Data Pin, Clock Pin)
int ctrl, in, rec_out, rec_gain, att, lr_in, bass, treble, sl_sr_c_sw_in, in_gain, lch_gain, lch_vol, rch_gain, rch_vol, cch_gain, cch_vol, swch_gain, swch_vol, slch_gain, slch_vol, srch_gain, srch_vol;
#define sw01 8
#define sw02 9
#define sw03 10
#define sw04 11
#define btn_delay 300
void setup() {
Serial.begin(9600);
pinMode(sw01, INPUT);
pinMode(sw02, INPUT);
pinMode(sw03, INPUT);
pinMode(sw04, INPUT);
delay(1000);
initialControl();
audio();
}
void loop() {
// Serial Monitor
Serial.print("Ctrl ");
Serial.print(ctrl);
Serial.print(", in-");
Serial.print(in);
Serial.print(", rec_out-");
Serial.print(rec_out);
Serial.print(", rec_gain-");
Serial.print(rec_gain);
Serial.print(", att-");
Serial.print(att);
Serial.print(", lr_in-");
Serial.print(lr_in);
Serial.print(", bass-");
Serial.print(bass);
Serial.print(", treble ");
Serial.print(treble);
Serial.print(", sl_sr_c_sw_in-");
Serial.print(sl_sr_c_sw_in);
Serial.print(", in_gain-");
Serial.print(in_gain);
Serial.print(", lch_gain-");
Serial.print(lch_gain);
Serial.print(", lch_vol-");
Serial.print(lch_vol);
Serial.print(", rch_gain-");
Serial.print(rch_gain);
Serial.print(", rch_vol-");
Serial.print(rch_vol);
Serial.print(", cch_gain-");
Serial.print(cch_gain);
Serial.print(", cch_vol-");
Serial.print(cch_vol);
Serial.print(", swch_gain-");
Serial.print(swch_gain);
Serial.print(", swch_vol-");
Serial.print(swch_vol);
Serial.print(", slch_gain-");
Serial.print(slch_gain);
Serial.print(", slch_vol-");
Serial.print(slch_vol);
Serial.print(", srch_gain-");
Serial.print(srch_gain);
Serial.print(", srch_vol-");
Serial.println(srch_vol);
// Control select
if (digitalRead(sw03) == LOW) {
ctrl++;
if (ctrl > 20) { ctrl = 0; }
if (ctrl > 20) { ctrl = 20; }
delay(btn_delay);
}
if (digitalRead(sw04) == LOW) {
ctrl--;
if (ctrl < 0) { ctrl = 0; }
delay(btn_delay);
}
// Control 0 - Input Selector
if (ctrl == 0) {
if (digitalRead(sw01) == LOW) {
in++;
if (in > 4) { in = 4; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
in--;
if (in < 0) { in = 0; }
audio();
delay(btn_delay);
}
}
// Control 1 - REC Output
if (ctrl == 1) {
if (digitalRead(sw01) == LOW) {
rec_out++;
if (rec_out > 1) { rec_out = 1; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
rec_out--;
if (rec_out < 0) { rec_out = 0; }
audio();
delay(btn_delay);
}
}
// Control 2 - REC-Output Gain Control
if (ctrl == 2) {
if (digitalRead(sw01) == LOW) {
rec_gain++;
if (rec_gain > 3) { rec_gain = 3; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
rec_gain--;
if (rec_gain < 0) { rec_gain = 0; }
audio();
delay(btn_delay);
}
}
// Control 3 - ADC Input ATT
if (ctrl == 3) {
if (digitalRead(sw01) == LOW) {
att++;
if (att > 3) { att = 3; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
att--;
if (att < 0) { att = 0; }
audio();
delay(btn_delay);
}
}
// Control 4 - L/R Input
if (ctrl == 4) {
if (digitalRead(sw01) == LOW) {
lr_in++;
if (lr_in > 1) { lr_in = 1; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
lr_in--;
if (lr_in < 0) { lr_in = 0; }
audio();
delay(btn_delay);
}
}
// Control 5 - Bass/Bypass (Tone control is bypass)
if (ctrl == 5) {
if (digitalRead(sw01) == LOW) {
bass++;
if (bass > 14) { bass = 14; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
bass--;
if (bass < 0) { bass = 0; }
audio();
delay(btn_delay);
}
}
// Control 6 - Treble
if (ctrl == 6) {
if (digitalRead(sw01) == LOW) {
treble++;
if (treble > 14) { treble = 14; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
treble--;
if (treble < 0) { treble = 0; }
audio();
delay(btn_delay);
}
}
// Control 7 - SL/ SR/ C/ SW Input
if (ctrl == 7) {
if (digitalRead(sw01) == LOW) {
sl_sr_c_sw_in++;
if (sl_sr_c_sw_in > 1) { sl_sr_c_sw_in = 1; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
sl_sr_c_sw_in--;
if (sl_sr_c_sw_in < 0) { sl_sr_c_sw_in = 0; }
audio();
delay(btn_delay);
}
}
// Control 8 - Input Gain
if (ctrl == 8) {
if (digitalRead(sw01) == LOW) {
in_gain++;
if (in_gain > 7) { in_gain = 7; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
in_gain--;
if (in_gain < 0) { in_gain = 0; }
audio();
delay(btn_delay);
}
}
// Control 9 - Left Channel Gain Control
if (ctrl == 9) {
if (digitalRead(sw01) == LOW) {
lch_gain++;
if (lch_gain > 7) { lch_gain = 7; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
lch_gain--;
if (lch_gain < 0) { lch_gain = 0; }
audio();
delay(btn_delay);
}
}
// Control 10 - Left Channel Volume Control
if (ctrl == 10) {
if (digitalRead(sw01) == LOW) {
lch_vol++;
if (lch_vol > 99) { lch_vol = 99; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
lch_vol--;
if (lch_vol < 0) { lch_vol = 0; }
audio();
delay(btn_delay);
}
}
// Control 11 - Right Channel Gain Control
if (ctrl == 11) {
if (digitalRead(sw01) == LOW) {
rch_gain++;
if (rch_gain > 7) { rch_gain = 7; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
rch_gain--;
if (rch_gain < 0) { rch_gain = 0; }
audio();
delay(btn_delay);
}
}
// Control 12 - Right Channel Volume Control
if (ctrl == 12) {
if (digitalRead(sw01) == LOW) {
rch_vol++;
if (rch_vol > 99) { rch_vol = 99; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
rch_vol--;
if (rch_vol < 0) { rch_vol = 0; }
audio();
delay(btn_delay);
}
}
// Control 13 - Center Channel Gain Control
if (ctrl == 13) {
if (digitalRead(sw01) == LOW) {
cch_gain++;
if (cch_gain > 7) { cch_gain = 7; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
cch_gain--;
if (cch_gain < 0) { cch_gain = 0; }
audio();
delay(btn_delay);
}
}
// Control 14 - Center Channel Volume Control
if (ctrl == 14) {
if (digitalRead(sw01) == LOW) {
cch_vol++;
if (cch_vol > 99) { cch_vol = 99; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
cch_vol--;
if (cch_vol < 0) { cch_vol = 0; }
audio();
delay(btn_delay);
}
}
// Control 15 - Subwoofer Channel Gain Control
if (ctrl == 15) {
if (digitalRead(sw01) == LOW) {
swch_gain++;
if (swch_gain > 7) { swch_gain = 7; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
swch_gain--;
if (swch_gain < 0) { swch_gain = 0; }
audio();
delay(btn_delay);
}
}
// Control 16 - Subwoofer Channel Volume Control
if (ctrl == 16) {
if (digitalRead(sw01) == LOW) {
swch_vol++;
if (swch_vol > 99) { swch_vol = 99; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
swch_vol--;
if (swch_vol < 0) { swch_vol = 0; }
audio();
delay(btn_delay);
}
}
// Control 17 - Surround Left Channel Gain Control
if (ctrl == 17) {
if (digitalRead(sw01) == LOW) {
slch_gain++;
if (slch_gain > 7) { slch_gain = 7; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
slch_gain--;
if (slch_gain < 0) { slch_gain = 0; }
audio();
delay(btn_delay);
}
}
// Control 18 - Surround Left Channel Volume Control
if (ctrl == 18) {
if (digitalRead(sw01) == LOW) {
slch_vol++;
if (slch_vol > 99) { slch_vol = 99; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
slch_vol--;
if (slch_vol < 0) { slch_vol = 0; }
audio();
delay(btn_delay);
}
}
// Control 19 - Surround Right Channel Gain Control
if (ctrl == 19) {
if (digitalRead(sw01) == LOW) {
srch_gain++;
if (srch_gain > 7) { srch_gain = 7; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
srch_gain--;
if (srch_gain < 0) { srch_gain = 0; }
audio();
delay(btn_delay);
}
}
// Control 20 - Surround Right Channel Volume Control
if (ctrl == 20) {
if (digitalRead(sw01) == LOW) {
srch_vol++;
if (srch_vol > 99) { srch_vol = 99; }
audio();
delay(btn_delay);
}
if (digitalRead(sw02) == LOW) {
srch_vol--;
if (srch_vol < 0) { srch_vol = 0; }
audio();
delay(btn_delay);
}
}
}
void initialControl() {
ctrl = 0; // Control 0 - 20
in = 1; // Input Selector 0 to 4 (0=ALL OFF, 1=IN1, 2=IN2, 3=IN3 and 4=IN4)
rec_out = 0; // REC Output 0 or 1 (0=OFF and 1=ON)
rec_gain = 0; // REC-Output Gain Control 0 to 3 (0=0dB, 1=+2dB, 2=+4dB and 4=+6dB)
att = 0; // ADC Input ATT 0 to 3 (0=0dB, 1=-6dB, 2=-12dB and 4=-18dB)
lr_in = 0; // L/R Input 0 or 1 (0=Selector In and 1=Multi In)
bass = 7; // Bass/Bypass 0 to 14 (0=-14dB, 7=0dB, 14=+14dB)
treble = 7; // Treble 0 to 14 (0=-14dB, 7=0dB, 14=+14dB)
sl_sr_c_sw_in = 0; // SL/ SR/ C/ SW Input 0 or 1
in_gain = 0; // Input Gain 0 to 7 (0=0dB to 7=+14dB) +2dB/step
// Channel Gain 0 to 7 (0=0dB to 7=+14dB) +2dB/step
// Channel Volume 0 to 99 (0=-99dB to 99=0dB) 1dB/step
lch_gain = 0; // Left Channel Gain
lch_vol = 60; // Left Channel Volume
rch_gain = 0; // Right Channel Gain
rch_vol = 60; // Right Channel Volume
cch_gain = 0; // Center Channel Gain
cch_vol = 60; // Center Channel Volume
swch_gain = 0; // Subwoofer Channel Gain
swch_vol = 50; // Subwoofer Channel Volume
slch_gain = 0; // Surround Left Channel Gain
slch_vol = 60; // Surround Left Channel Volume
srch_gain = 0; // Surround Right Channel Gain
srch_vol = 60; // Surround Right Channel Volume
}
void audio() {
R2S15902FP.slot1(in, rec_out, rec_gain, att, lr_in, bass, treble, sl_sr_c_sw_in, in_gain);
R2S15902FP.slot2(lch_gain, lch_vol, rch_gain, rch_vol);
R2S15902FP.slot3(cch_gain, cch_vol, swch_gain, swch_vol);
R2S15902FP.slot4(slch_gain, slch_vol, srch_gain, srch_vol);
}
Documents
Download FilesI have included R2S15902FP.h, R2S15902FP.cpp, audio.ino, Circuit digram, PCB Design(PDF) and R2S15902FP Datasheet in the link.
