New arrival
$12.99
Wi-Fi IR controller · DIY board · SMLIGHT
SLWF-12.
Open board architecture. Flexible firmware. Smart IR.
SLWF-12 — a compact Wi-Fi board based on ESP8266 with a built-in IR transmitter, IR receiver, USB/UART converter, and open DIY pinouts. Sends commands to infrared-controlled devices, receives signals from existing remotes, and integrates them into smart home automations.
The board remains flexible: install ready-made firmware, build your own, or expand the hardware through the available GPIO, UART, and ADC.
What it does
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IR transmitter and receiver
Controls TVs, air conditioners, soundbars, amplifiers, fans, projectors, and other equipment with an IR remote.
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Command capture and playback
Point the remote, press a button — the board captures the signal and can reproduce it itself later. Useful when ready-made IR codes for the device are not available.
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Ready for Home Assistant
Through compatible firmware (for example, ESPHome with remote_receiver/remote_transmitter), IR functions become available in dashboards, scripts, and automations.
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Flashing without a programmer
The built-in USB/UART converter (CH340N) is connected directly to the ESP8266 programming interface. Connect via USB — flash it, no external programmer required.
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How to get started
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01
Connect via USB
Built-in CH340N — no separate programmer required.
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02
Flash it
Ready-made firmware or your own build for ESP8266.
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03
Learn or configure
Point the remote to capture commands, or connect directly to Home Assistant.
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Not a closed device — developer board
Built for DIY
SLWF-12 is not a closed IR device, but a full-featured board for your own projects. GPIO, ADC, UART TX/RX, Reset, 3.3 V, 5 V, and GND are exposed — providing direct access to the ESP8266, IR circuitry, USB/UART interface, and expansion connectors. Add sensors, buttons, external modules, or your own electronics.
Key features
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IR transmitter + receiver
Both channels on one board — send and receive commands without separate modules.
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Home Assistant compatibility
Through supported firmware — directly in dashboards, scripts, and automations.
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ESP8266 Wi-Fi
A proven platform with a large community and ESPHome compatibility.
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ESPHome and custom firmware compatibility
You are not tied to a single firmware — choose a ready-made solution or write your own.
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GPIO, ADC, UART, power
A complete set of pinouts for expanding with your own sensors and modules.
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Ideal for local automations
IR devices become a full part of the smart home rather than a separate "black box".
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Need dedicated air conditioner control?
SLWF-12 has ready-made proprietary SMLIGHT AC Bridge firmware — one-click air conditioner learning, synchronization with the original remote, scenes, schedules, and full integration with Home Assistant, MQTT, and Telegram. See the separate firmware card for details.
Ideal for
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Replacing old IR remotes with Home Assistant control.
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Devices without ready-made IR codes — capture and reproduce the commands yourself.
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DIY projects with your own sensors and electronics based on open hardware.
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Technical specifications
| Model | SLWF-12 |
| MCU / Wi-Fi | ESP8266 / ESP-12F |
| IR functionality | Transmission + reception |
| Firmware | Compatible with ESPHome and custom firmware for ESP8266 |
| USB/UART | CH340N, direct flashing without a programmer |
| Expansion | GPIO, ADC, UART, power, and control pins |
| Power | USB / 5 V |
| Logic voltage | 3.3 V |
| Smart home | Compatible with Home Assistant through supported firmware |
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