Onkyo NodeMCU

Use any NodeMCU ESP8266 board to drive your Onkyo Amplifier via REST commands.

Description

This project will help you to create an usb powered little box that will expose some REST API GET commands to you local network to drive your offline amplifier.

Tools needed

What I'm using:

HW

• Mini D1 NodeMCU
• two wires cable with 3.5mm mono audio jack
• Onkyo amplifier supporting RI (Onkyo A-9010)

SW

• Arduino IDE
• OnkyoRI library

Usage

During the first boot, your nodeMCU board will boot in AP mode (SSID: Onkyo NodeMCU, no password), connect to it and navigate with your browser to http://192.168.4.1. Here you will be able to select your local wifi SSID and insert your password.

The board will store SSID and password data, then it'll restart and try to connect. If everything is ok, you'll find a new device in your home network. Test it with your browser reaching the IP address it got from your DHCP (ex.: http://192.168.1.13)

Configuration

Please, take a look at the config.h file, there you have to select your amplifier model, the GPIO pin used or enable/disable debug.

REST GET commands

Those are commands available indipendently by the amplifier model.

• custom (custom command via cmd parameter) (ex.: http://192.168.1.13/custom?cmd=0x02F)
• initialize (reset wireless settings)

Here below there are specific amplifiers commands already stored in the config.h file, you need to define your model before compiling and flashing your NodeMCU board.

Onkyo A-9010 RI Codes

Action	Command	REST GET
Turn On	0x02F	on
Turn Off	0x0DA	off
On/Off toggle	0x004	toggleonoff
Volume up	0x002	volup
Volume down	0x003	voldown
Mute toggle	0x005	mute
Next source	0x0d5	sourcenext
Previous source	0x0d6	sourceprev
CD source	0x020	cd
Line-in	0x0e3	linein
Change source to Dock	0x170	dock

Onkyo ONKYO_TX_SR304 RI Codes

Action	Command	REST GET
Turn On	0x1AF	on
Turn Off	0x1AE	off
Mute	0x1A4	mute
Volume up	0x1A2	volup
Volume down	0x1A3	voldown
CD source	0x20	cd
Tape source	0x70	tape
DVD source	0x120	dvd
HDD source	0x170	hdd
Video2 source	0x1A0	video2