rern / R_GPIO

RuneAudio GPIO control GUI

+R GPIO

For rAudio - Control GPIO-connected relay module for power on / off equipments.

• Power on off audio equipments in sequence**
• Up to 4 equipments(relays)
• Delay setting for each equipment(relay)
• Idle timer power off
  • Notify last minute warning with countdown
  • Reset on play or reset button during warning

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Warning

• A relay module can be connected to GPIO, to see how it works, by anyone with basic skill.
• Wrong connection may just damage your RPi. (only 5V)
• Requires electrical skill and knowledge to connect these relays as power switches. (110V / 220V)
• Electric shock can kill.

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Relay module

Dirt cheap on ebay

• Relay module
  • use high/low level trigger and set to high
  • For complete isolation:
    • Remove all jumpers
    • Connect all center pins to RPi ground
    • Power relay module with a separated 5V power supply

The box

• LEDs for GPIO 3.3V status
• Switches
  • Normal : GPIO 3.3V > LED ON, relay ON
  • Off : GPIO 3.3V > LED ON, relay OFF
  • Bypass : Direct 5V > LED OFF, relay ON

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