Manage phone services with . Top up airtime, add data, and pay bills for utilities like electricity or cable. View balance, track usage, and make payments directly from the .
Monitor battery voltage, total capacity, and charging/discharge current. Control ports, calibrate settings, and log voltage, current, and power data. Change Bluetooth name, unlock BMS, and save/load configurations.
Pay for phone airtime, internet data, cable TV, electricity, and education fees. Transfer funds and subscribe to services. View history and manage multiple accounts.
Calculate circuits, convert units, test experiments
Solve electrical problems by calculating voltage, current, and resistance. Input values to determine unknown variables. Perform unit conversions and conduct experiments. Store and retrieve calculation results.