To make an IR gun we need a remote control and a toy gun
On the other hand we need a IR receiver and a Arduino breadboard
A=er installing the IR library for arduino and making the IR receiver work we push a bu@on on the remote control and look which bu@on we can receive. And we write down the code we receive (A81 in our case).
Remove the ba@eries of the remote control and open it.
Now we can see the breadboard. On one side we can see al the bu@ons.
On the other side we see some electronic components. The most important one is the IR LED which sends the signal.
Find the bu@on you were able to read with the IR receiver. Follow the path of that bu@on and ﬁnd 2 points that are easy to solder.
Cut the housing of the remote control trough par/ally just under the bu@ons.