LEGO Power Functions Power Source v2 (Variable Outputs)
Update June 25, 2019: Stay tuned for a new and improved version coming by later this summer!
Using this power source and any LEGO IR controller or SBrick, you can create advanced lighting and effect setups such as directional lighting for trains, automatic reverse lights, and automatic turn signals for vehicles. The power source has three outputs: one "always on," one that is activated when a PF channel is in reverse/left, and one that is active when a PF channel is in forward/right. Any combination of Brickstuff lights or effect controllers can be connected to any output port.
- Always on: like in the original version of our PF power supply, when your PF battery is on, the lights connected to this port are on
- "On When in Reverse/Left": lights and effects connected to this port are turned on when the PF channel the power supply is connected to is put in reverse or turned to the left (for example, on the LEGO IR remote, when the orange wheel is turned to the left)
- "On When Forward/Right": lights and effects connected to this port are turned on when the PF channel is put in forward or turned to the right (for example, when the orange wheel on the LEGO IR remote is turned to the right)
- Directional headlights on trains
- Automatic reverse lights on vehicles
- Individual control of building or other lighting using a LEGO remote
- It will not operate with LEGO 9V transformers or trains.
- Outputs are not dimmable-- they are either on or off.
- When using with an SBrick connected to the same channel as a motor, both the forward and reverse outputs will be activated when the motor is moving slowly. When the motor is operated at high speed in either direction, this problem goes away and only the correct port is activated. This is an issue with the way in which SBrick controls motors, and it not related to the Brickstuff power supply. When used with a LEGO infrared control system, this issue does not occur.
The following illustrations show several configurations for the power supply. All configurations work with SBrick ports as well (though note the SBrick behavior above when connected to the same channel as a motor).
1. Dedicated Connection to One Power Functions Channel
2. Connection to Channel With Motor
3. Connection to Channel with Servo
The scenarios above are meant as a starting point-- the power source is flexible enough to be used with almost any Power Functions configuration.