An IR blaster dongle is an external hardware accessory that plugs into your phone's port to send infrared commands to TVs, air conditioners, and other IR-controlled devices. It adds remote control capability to phones that lack a built-in infrared emitter, turning your smartphone into a universal remote.
What is an IR blaster dongle
An IR blaster dongle is an external IR transmitter, not a software feature. It connects to your phone through a USB port or audio jack and acts as a bridge between your mobile device and electronics that use infrared remotes. The dongle typically plugs into the audio jack or USB port, depending on the model. The dongle itself contains an infrared LED that can mimic the signals of a traditional remote control.
How does an IR blaster dongle work
The phone app sends a remote-control command to the dongle. The dongle converts that command into infrared light pulses that IR devices understand. An IR blaster dongle consists of an infrared LED, a circuit, and a microcontroller. These pulses travel through the air to the target device's IR receiver, which decodes the signal and performs the action, such as changing the channel or adjusting the temperature. The app can send IR in multiple ways, including through a built-in IR emitter on supported phones, supported USB IR dongles, and audio-to-IR adapters.
Which phones support an IR blaster dongle
Android phones with compatible hardware can use an IR blaster dongle through apps that support "supported USB IR dongles" and "audio to IR adapters." The documented Android app works with compatible phones, but the full device list is not specified in the available documentation. iPhones lack a built-in IR blaster, so iPhone use would require external hardware rather than a native setting.
What can you control with an IR blaster dongle
You can control non-smart devices that still use infrared remotes, such as TVs, air conditioners, and home theater systems. You can use an IR blaster dongle to control projectors and slide advancers for presentations. The dongle works with any IR-compatible device that accepts standard infrared signals, including older models that do not have Wi-Fi or Bluetooth connectivity.
Advantages of using an IR blaster dongle
An IR blaster dongle adds IR remote control to phones that do not have built-in IR hardware. It centralizes remote control functions into one app on your phone, eliminating the need for multiple physical remotes. It also allows you to control legacy non-smart devices that still rely on infrared, extending the usefulness of older electronics. IR blaster dongles can be used with automation apps to create customized routines (e.g., turning on the TV, switching to a favorite channel, and adjusting room temperature with one command). IR blaster dongles can serve as an accessibility feature for individuals with physical disabilities, providing an alternative means of managing appliances through gestures or voice commands.
Disadvantages and limitations
IR blaster dongles require compatible hardware and are not guaranteed to work on every phone. The documented Android app says support depends on "compatible phones" and "supported USB IR dongles," meaning compatibility is not universal. The dongle needs a clear line of sight to the target device's IR receiver, as obstacles like walls or furniture can block the infrared signals. Using an IR blaster dongle can consume a significant amount of power, which may impact the battery life of your smartphone or tablet.
Frequently Asked Questions
How do I set up an IR blaster dongle on my phone?
Plug the dongle into your phone's USB port or audio jack, then install a compatible IR remote app from your app store. The app will guide you through selecting your device brand and testing the connection.
Will an IR blaster dongle work with my iPhone?
iPhones do not have a built-in IR blaster, and no official Apple setup path is documented.
Are all smartphones and tablets compatible with IR blaster dongles?
No, compatibility varies. Flagship models from brands like Samsung, LG, and Xiaomi generally have IR blasters, while others may not. For devices without a built-in IR blaster, a dongle may be required, but support depends on the specific phone and app.
Can an IR blaster dongle replace all my remotes?
An IR blaster dongle can replace remotes for any IR-controlled device, including TVs, air conditioners, and home theater systems. However, it cannot control devices that use other protocols like Bluetooth or Wi-Fi, and it requires line-of-sight to function.
What is the difference between an IR blaster dongle and a Bluetooth dongle?
An IR blaster dongle uses infrared light pulses to control devices, requiring line-of-sight, while a Bluetooth dongle uses radio waves for wireless communication and does not need direct visibility. They serve different purposes: IR for remote control of traditional electronics, Bluetooth for data transfer and peripheral connections.
Do I need an internet connection to use an IR blaster dongle?
No, an IR blaster dongle does not require an internet connection. It sends infrared signals directly from your phone to the device, working entirely offline once the app is installed.
