From a user request @rradar I tested the following IR shield added to a wemos d1 mini and I can now confirm it works perfectly with OMG either for receiving or emitting.
Here are the specs :
emitting range is about 2 meters with my tv.
You just have to change in config_ir.h the emitter pin to 0
#ifdef ESP8266 #define IR_RECEIVER_PIN 2 #define IR_EMITTER_PIN 0