Mikroe PAC1944 Click contains an energy monitoring solution, and features the Microchip Technology PAC1944 multi-channel DC power/energy monitor. It uses real-time calibration to minimize offset and gain errors with no input filters required for this device. The PAC1944 design is a set of digital comparators that detect over/under voltage, over/undercurrent, and overpower against user-programmed limits for each channel and generate an alert when the threshold is exceeded.