Got it working in 2021 with my new Alpine head unit.

[SparkVent]

Got it working in 2021 with my new Alpine head unit. Commited my Arduino code as a new file.

The ArduinoIR library is extensive and mature. I borrowed a bit of code from it and it works well.

[pietro-v]

Do you mind sharing? I don’t see the commits on your repo.

Volume controls and play/pause are the same, but I can’t activate Siri on my ilx-w650

[SparkVent]

I uploaded the file into the repo as a new file I think. Not sure how to commit properly. ` /* Alpine Remote 2021, Jeremy F. *

• Control an Alpine Car Stereo unit using the connector at the back
• Using inspiration from the Wnthr/arduino_alpine_remote library I started the problem from scratch.
• To use the Alpine remote wired connection connect a 5v Arduino pin 3 to the tip of a 3.5mm TRS plug
• and the sleeve to ground.
• This program copies the serial output code from the ArduinoIR library, but omits the 39kHz PWM
• as we are not driving an IR LED. Using an IR Receiver I have sniffed all the buttons on my Alpine
• remote and included the raw data here.
• My car happens to use a resistor ladder to encode 6 buttons from my steering wheel.

*/

//Alpine remote signal raw data collected using IRreceive_dump and an IR receiver module #define A_POWER 0xF6097286 #define A_MUTE 0xE9167286 #define A_VOLDOWN 0xEA157286 #define A_VOLUP 0xEB147286 #define A_SOURCE 0xF50A7286 #define A_BAND 0xF20D7286 #define A_PHONE 0xA9567286 #define A_TRACKPREV 0xED127286 #define A_PLAYPAUSE 0xF8077286 #define A_TRACKNEXT 0xED127286 #define A_ARROWUP 0x718E7286 #define A_ARROWDOWN 0x708F7286 #define A_ARROWLEFT 0x6C937286 #define A_ARROWRIGHT 0x6D927286 #define A_ENTER 0x5FA07286 #define A_UP 0xF10E7286 #define A_DN 0xF00F7286 #define A_AUDIO 0x5AA57286 #define A_SUBTITLE 0x5BA47286 #define A_MENU 0x5EA17286

//NEC IR timing info found within the IRremote library #define NEC_UNIT 560 #define NEC_HEADER_MARK (16 * NEC_UNIT) // 9000 #define NEC_HEADER_SPACE (8 * NEC_UNIT) // 4500 #define NEC_BIT_MARK NEC_UNIT #define NEC_ONE_SPACE (3 * NEC_UNIT) // 1690 #define NEC_ZERO_SPACE NEC_UNIT #define NEC_REPEAT_HEADER_SPACE (4 * NEC_UNIT) // 2250

//Pin to output remote signal on. Connect this to the tip of a 3.5mm plug. #define APIN 3

//Resistor ladder voltage divider decision values for my car steering wheel buttons. // I used the Arduino to measure each button push, and then took a value halfway between each // one for these descision values.

#define R_VOLDOWN 313 #define R_VOLUP 444 #define R_MUTE 566 #define R_TRACKDOWN 688 #define R_TRACKUP 740 #define R_MODE 890

void setup() { pinMode(APIN, OUTPUT); Serial.begin(115200); delay(10); digitalWrite(APIN, LOW); Serial.println("Alpine Remote 2021");

int sensorValue = analogRead(A4); while(sensorValue < 100){ //freeze program here if button wiring has shorted delay(1); sensorValue = analogRead(A4); } }

void loop() { int sensorValue = analogRead(A4); delay(1); //I find I get more consistent analog readings this way. sensorValue = analogRead(A4);

if (sensorValue < R_VOLDOWN) { sendNEC32_TTL(A_VOLDOWN); Serial.print(sensorValue); Serial.println(" Volume Down pushed");} else if (sensorValue < R_VOLUP) { sendNEC32_TTL(A_VOLUP); Serial.print(sensorValue); Serial.println(" Volume Up pushed");} else if (sensorValue < R_MUTE) { sendNEC32_TTL(A_PLAYPAUSE); Serial.print(sensorValue); Serial.println(" Mute pushed");} else if (sensorValue < R_TRACKDOWN) { sendNEC32_TTL(A_TRACKNEXT); Serial.print(sensorValue); Serial.println(" Track Down pushed"); } else if (sensorValue < R_TRACKUP) { sendNEC32_TTL(A_TRACKPREV); Serial.print(sensorValue); Serial.println(" Track up pushed");} else if (sensorValue < R_MODE) { sendNEC32_TTL(A_PHONE); Serial.print(sensorValue); Serial.println(" Mode pushed");} }

void sendNEC32_TTL(uint32_t data) { //Send NEC style 32 bits (2x address bytes + 2x command bytes) using NEC timing to a pin. uint32_t mask = 0x00000001;

//Send NEC header burst digitalWrite(APIN, HIGH); delayMicroseconds(NEC_HEADER_MARK); digitalWrite(APIN, LOW); //Send NEC header space delayMicroseconds(NEC_HEADER_SPACE);

//Send the data LSB first for (int i=0;i<32;i++) { if((mask << i) & data) { //bitwise AND operation reveals each bit //Send a '1'
digitalWrite(APIN, HIGH); delayMicroseconds(NEC_BIT_MARK); digitalWrite(APIN, LOW); delayMicroseconds(NEC_ONE_SPACE); } else { //send a '0' digitalWrite(APIN, HIGH); delayMicroseconds(NEC_BIT_MARK); digitalWrite(APIN, LOW); delayMicroseconds(NEC_ZERO_SPACE); } } //Send NEC stop bit digitalWrite(APIN, HIGH); delayMicroseconds(NEC_BIT_MARK); digitalWrite(APIN, LOW); delayMicroseconds(NEC_ZERO_SPACE);

delay(200); //simple de-bounce, and NEC requires at least 5ms(?) gap otherwise the NEC "repeat" scheme must be used. }

void debugNEC32_TTL(uint32_t data) { //Print output for debugging uint32_t mask = 0x00000001; for (int i=0;i<32;i++) { if((mask << i) & data) { //Send a '1'
Serial.print("1"); } else { //send a '0' Serial.print("0"); } } Serial.println("S"); }

`

[pietro-v]

Thank you!

[genging]

Do you mind sharing? I don’t see the commits on your repo.

Volume controls and play/pause are the same, but I can’t activate Siri on my ilx-w650

you activate Siri succeed ? please share code with siri use ilx-w660e

[noeljary]

Bit late to the party, but, Siri activation code is 0xAE517286. Works on the iLX-W690D.

[valinet]

A small mistake: A_TRACKPREV is the same as A_TRACKNEXT in the source listing provided:

#define A_TRACKPREV 0xED127286
#define A_PLAYPAUSE 0xF8077286
#define A_TRACKNEXT 0xED127286

Instead, it should be:

#define A_TRACKPREV 0xEC137286
#define A_PLAYPAUSE 0xF8077286
#define A_TRACKNEXT 0xED127286

Thanks for the great example on this.