In the latest version cardinal components is replaced with vanilla functionality.
My version of a simple wireless redstone transmitter and receiver.
The crafting recipes are in the images tab/folder.
Right click on transmitter or receiver blocks to change the frequency and allow multiple wireless connections at the same time.
There is a handheld device that players can use to trigger receivers on the same frequency.
Right-click the handheld to toggle on/off state. The state remains even if the handheld is put in a chest or if the player holding it logs off.
To change the frequency hold shift + right click to open the frequency changing screen.
