The PAC1944 and PAC1954 Click boards^™ are compact add-on boards that contain an energy monitoring solution. These boards feature the PAC1944 and PAC1954 multi-channel DC power/energy monitors from Microchip Technology. These click boards perform power calculations and energy accumulation, enabling energy monitoring with integration periods up to one year or longer. The PAC1944 and PAC1954 click is supported by a mikroSDK compliant library, which includes functions that simplify software development.