Title: Hardware Support
Description: Boards and peripherals required for GhostESP infrared
URL: /v2.1/infrared/hardware/
Version: v2.1
Section: Infrared
Search index: /search-index.json

# Hardware Support

> Boards and peripherals required for GhostESP infrared

## On this page

- [Supported boards](#supported-boards)
- [Wiring and Developer notes](#wiring-and-developer-notes)
- [Power and positioning](#power-and-positioning)

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## Supported boards
GhostESP exposes IR features only when the board is built with IR RX or TX enabled.
- LilyGo S3TWatch — IR transmit
- ESP32-S3 Cardputer / Cardputer ADV — IR transmit
- LilyGo TEmbed C1101 — IR transmit and receive
Other boards may ship with TX-only support or no IR hardware at all. Look for infrared support listed in the release notes or above before flashing.
## Wiring and Developer notes
- IR LED: Connected to CONFIG_INFRARED_LED_PIN. Use a current-limiting resistor if adding an external LED.
- IR Receiver: Required for learning. Boards with CONFIG_HAS_INFRARED_RX set expose the pin via CONFIG_INFRARED_RX_PIN.
## Power and positioning
- Keep the LED unobstructed and aimed at the target device.
- For learning, place the source remote close to the receiver window and shield it from direct sunlight or fluorescent flicker.