MrDEB
Well-Known Member
Been designing a battery operated device that consists of two separate units both of which run on battery power. Found lots of online calculators etc. for determining battery life expectancy but have yet to find any that agree with each other.
My idea is to use a PIC, a current sensor, the UART or LCD for display.
You connect the meter to your project, run the project through its paces and the meter measure and calculates amount of current drawn, calculates battery Ahr/MAhr rating needed depending on battery chemistry etc.
For example - you have an LED game you designed and built. The current demands change constantly but the meter averages out vers time to give a viable battery requirement.
My idea is to use a PIC, a current sensor, the UART or LCD for display.
You connect the meter to your project, run the project through its paces and the meter measure and calculates amount of current drawn, calculates battery Ahr/MAhr rating needed depending on battery chemistry etc.
For example - you have an LED game you designed and built. The current demands change constantly but the meter averages out vers time to give a viable battery requirement.