Tasmota IR Remote Control Hub

Tasmota IR Remote Control Hub

Replace all your IR remotes with a single WiFi-connected IR blaster running Tasmota. Send and receive IR commands via MQTT, control air conditioners, TVs, and any IR device from Home Assistant or Alexa.

Why This Project

• Replace all IR remotes with one WiFi device
• Control AC units — full HVAC control (mode, temp, fan speed, swing)
• Learn IR codes — capture any remote's signals
• Rules automation — turn off TV at bedtime, AC schedules
• Under $5 with ESP8266 + IR LED + receiver

Components Required

Component	Purpose	Est. Cost
Wemos D1 Mini (or ESP32)	WiFi controller	$3
IR LED (TSAL6400 recommended)	Transmit IR signals	$0.20
2N2222 NPN transistor	Drive IR LED with enough current	$0.10
100Ω resistor	Current limiting for transistor base	$0.01
KY-022 IR receiver module	Receive/learn IR codes	$0.50

Wiring

IR Transmitter:
ESP GPIO4 (D2) ──[100Ω]──→ 2N2222 Base
                            2N2222 Emitter → GND
                            2N2222 Collector → IR LED Cathode
                            IR LED Anode → 3.3V

IR Receiver (KY-022):
Signal    →   GPIO14 (D5)
VCC       →   3.3V
GND       →   GND

Tasmota Setup

1. Flash tasmota-ir.bin (includes full IR protocol library)
2. Configuration → Configure Module
3. Set GPIO4 to IRsend
4. Set GPIO14 to IRrecv
5. Reboot

Learning IR Codes

Point your existing remote at the KY-022 receiver and press buttons. Tasmota captures the raw IR data in the console:

# Console shows received IR codes like:
{"IrReceived":{"Protocol":"NEC","Bits":32,"Data":"0x20DF10EF"}}

# Replay that code:
IRsend {"Protocol":"NEC","Bits":32,"Data":"0x20DF10EF"}

Air Conditioner Control

Tasmota supports full HVAC control for major AC brands:

# Turn AC on, cool mode, 22°C, fan auto
IRhvac {"Vendor":"SAMSUNG","Power":"On","Mode":"Cool","Temp":22,"FanSpeed":"Auto"}

# Supported vendors: Samsung, LG, Daikin, Mitsubishi, Fujitsu,
# Toshiba, Panasonic, Hitachi, Whirlpool, and 30+ more

Home Assistant Integration

mqtt:
  climate:
    - name: "Living Room AC"
      modes: ["off", "cool", "heat", "auto", "dry", "fan_only"]
      fan_modes: ["auto", "low", "medium", "high"]
      min_temp: 16
      max_temp: 30
      command_topic: "cmnd/tasmota_ir/IRhvac"
      # Full climate entity with temperature and mode control

Automation Examples

# Turn off TV at midnight
automation:
  - alias: "TV off at midnight"
    trigger:
      - platform: time
        at: "00:00:00"
    action:
      - service: mqtt.publish
        data:
          topic: "cmnd/tasmota_ir/IRsend"
          payload: '{"Protocol":"NEC","Bits":32,"Data":"0x20DF10EF"}'

Compatible Boards

• Wemos D1 Mini — most popular, compact
• ESP-01S — smallest build possible (limited GPIOs)
• Any ESP32 board — more memory for simultaneous send + receive
• Tuya IR blasters — commercial devices flashable with Tasmota (e.g., Tuya S08)