ESP32 UPnP remote controller

The purpose of this project is to create an UPnP control point controlled by infrared or bluetooth remote. It works with custom esp-ir-receiver based on ESP32 chip.

Software design

flowchart
    IR_R([IR Remote])
    BT_R([BT Remote])
    IR_D(IR Decoder)
    BT_S(BT/BLE Stack)
    Commands(Commands Processing)
    UPnP_CP(UPnP Control Point)
    UPnP_R([UPnP Renderer])

    IR_R -. "Infra-Red" .-> IR_D
    BT_R -. Bluetooth .-> BT_S
    IR_D --> Commands
    BT_S --> Commands
    Commands --> UPnP_CP
    UPnP_CP -. WiFi .-> UPnP_R

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Build and program

For fast development, this project uses PlatformIO tools.

# Build project.
pio run

# Clean build files.
pio run --target clean

# Upload firmware.
pio run --target upload

# Erase device.
pio run --target erase

Supported commands

The following control commands are:

• Play/Pause: Resume/Suspend the stream
• Previous: Request previous stream
• Next: Request next stream
• Volume up: Increase the volume
• Volume down: Decrease the volume
• Mute: Cut off the volume

Infrared remote decoder

Currently, NEC protocol is only supported. Here are the following commands ID supported:

Brand / Mode	Code
NEC E553	0
Samsung BN59-01175N	1

Command	Code 0	Code 1
Play/Pause	0x0D	0x47
Previous	0x1C	0x45
Next	0x18	0x48
Volume Up	0x0C	0x0F
Volume Down	0x10	0x07
Mute	0x04	0x0B