Sarunas built this device to replace a bunch of different remote controls with a smart phone:

Blue IR

Build your own universal remote

Features include:

• Control TV, HiFi and more from Android, iPhone or Windows Phone.
• Control devices using NEC, RC5 and SIRC protocols
• Provides Bluetooth Low Energy service for controlling it from other devices.

A solar version was also designed to avoid having to change the battery:

http://blog.sarunas.eu/post/2016/08/10/Blue-IR-solar-version

http://blog.sarunas.eu/post/2016/08/10/Blue-IR-solar-version

Blue IR solar version

Despite that Bluetooth Low Energy device uses so little of it, the battery will eventually run out. To overcome that, the old device was improved by adding a solar charger.

The design files and source code are available on GitHub:

 drme/ble-remote