The iMeter BoosterPack features the INA226, an iteration of the INA219 I've been using in various projects like the I²C Voltage-Current-Power INA219 Sensor and the Volt-Amp-Watt-Meter for Grove.Compared to the INA219, the INA226 operates on the same I²C bus but can now perform the measures on the high- or low-side, when the INA219 could only measure on the high-side.
The library for Energia was then easy to develop thanks to the prior experience with the INA219. I tested the iMeter BoosterPack on a MSP430FR4133 LaunchPad and a MSP430FR6989 LaunchPad with the built-in segmented LC