Arduino WXA-50 Alarm

Triggers USB playback of a yamaha WXA-50 amplifier at a specified time.

The timezone is fixed to german as of now. I used this on an esp32, I guess it would work with various other boards as well if WiFiMulti is changed to something generic.

Waiting for WiFi...
WiFi connected, IP: 192.168.178.75
Time: 21:36:03, alarm triggers in 1 Minutes
Time: 21:37:58, alarm triggers in 0 Minutes
Alarm triggers now
Sending "<YAMAHA_AV cmd="PUT"><Main_Zone><Power_Control><Power>On</Power></Power_Control></Main_Zone></YAMAHA_AV>"
Sending "<YAMAHA_AV cmd="PUT"><Main_Zone><Input><Input_Sel>USB</Input_Sel></Input></Main_Zone></YAMAHA_AV>"
Sending "<YAMAHA_AV cmd="PUT"><USB><List_Control><Direct_Sel>Line_1</Direct_Sel></List_Control></USB></YAMAHA_AV>"
Sending "<YAMAHA_AV cmd="PUT"><USB><Play_Control><Play_Mode><Shuffle>On</Shuffle></Play_Mode></Play_Control></USB></YAMAHA_AV>"
Sending "<YAMAHA_AV cmd="PUT"><USB><Play_Control><Playback>Skip Fwd</Playback></Play_Control></USB></YAMAHA_AV>"
Time: 21:38:09, alarm triggers in -1 Minutes

Dependencies

• https://www.arduino.cc/reference/en/libraries/ntpclient/
• https://www.arduino.cc/reference/en/libraries/timezone/

Configuration

put

#define WIFI_SSID "foo"
#define WIFI_PASSWORD "bar"
#define ALARM_HOUR 8  // 0-23
#define ALARM_MINUTE 0  // 0-59
#define WXA_HOSTNAME "WXA-50"

into arduino-wxa50-alarm/config.cpp

Building and Flashing

./run.sh

press and hold the BOOT button on the esp32 so that it starts flashing.

ctrl + a, then k and then y to stop the log output. It needs to be stopped before flashing again.

Curl

To test controlling the amplifier, curl can be used:

curl --data '<YAMAHA_AV cmd="PUT"><Main_Zone><Power_Control><Power>On</Power></Power_Control></Main_Zone></YAMAHA_AV>' wxa-50/YamahaRemoteControl/ctrl --verbose

Resources

• https://dev.to/stepanvrany/esp32-with-arduino-cli-36mh < actually good
• https://arduino.github.io/arduino-cli/0.19/getting-started/
• https://docs.espressif.com/projects/arduino-esp32/en/latest/getting_started.html
• examples: https://github.com/espressif/arduino-esp32/tree/master/libraries
• https://github.com/arduino-libraries/NTPClient/blob/master/NTPClient.h