Camper vans are becoming a popular travel option among the youth, they are like tiny homes. One of the challenges of building one is getting power for all the equipment: lighting, water pumps and heaters, fridge, etc. This is usually accomplished by having an auxiliary battery which is charged via solar panels on the roof. However, sun is not always available and running out of power is really troublesome. The idea of this project is to use excess power from the van's battery and alternator to charge the auxiliary one. The important thing is to prevent van's battery from draining so you could always start the engine. Only excess energy generated when idling in cities or traveling longer distances would be used to charge auxiliary battery.
Technical setup of the project would include:
this idea will get one TAPAS dev kit