The Dual LiPO Charger will charge two LiPO batteries at the same time. The charge current is settable from 50mA up to 600mA (see Data Sheet for restrictions). The module can be used connected to a USB port and have interactive control of the charging process. Or the charging currents can be downloaded into the module and used connected only to a USB power source.
The USB Brick Power is a small power module that accepts USB power and provides three voltages. The main voltage is 9VDC to run your Lego Power Function motors. The switch on the side will reverse the 9VDC for changing the direction of the motor. Additionally VUSB and 3.3VDC ae provided. This module will also plug into the MyMakerTools Brick controller and power it.
The USB Power Modules are small power modules that accepts USB power and provide multiple voltages out. Most voltages are fixed and regulated outputs, +/- ADJ, 12VDC, 5.0VDC, 3.3VDC, 2.5VDC and 1.8VDC. Some modules also provide a filtered version of VUSB.