Recently i have been working on a small application to enhance the simple electric bikes and scooters with a mobile application.
App connects via bluetooth to a current measuring module located between controller and battery of the vehicle to read voltage and current data.
Later we can match the data with GPS speed from smartphone and analyze to give various information
Battery Voltage and Percentage, Speed, Current, Power, Distance, Avarage Power Consumption, Estimated Range. We can also measure the efficiency of vehicle or battery health.
It appears “MIT App Inventor” will do the trick for the early version of application.