|Dimensions||1 x 1 x .5 in|
Expected arrival: Mid November
This board is detailed here. It has a +5v power input, +Battery input, and GND input. This has two outputs for warnings at two different battery levels. The output pins of this board switch to GND individually when the battery voltage drops below the thresholds. The warning voltages are adjustable.
This board is not specific to the PSPi. It will work with any project.