Files now have preliminary assembly instructions and bill of materials.
In the chrg position, the controller is off and can be charged using a standard cell phone charger and a micro-USB cable. The charger LEDs will go from red to green when the battery is fully charged. In ON position, the battery is in use. The LEDs from the PowerBoost board should be visible: green when ON, but turns to red when the battery is low. The keyfob LED should light read when a button is pressed.
The intended receiver is an Adafruit
1096 Simple RF M4 Receiver - 315MHz Momentary Type
It is built into my Raspberry Pi PlayVideo system