android universal active IR remote (IRdroid)

I haven't had time to re upload the pictures fir now please use this link https://www.instructables.com/id/Active-IR-DSLR-remote-for-android-smartphone/

Sorry to dig up an old thread but for anyone still looking to build an audio jack to IR circuit, IRdroid have published their schematics
https://www.irdroid.com/2013/05/building-irdroid-v1-0-on-a-breadboard/

And in case that link breaks, I've attahced the schematic