Need some help regarding power requirement for a project, working with arduino?

Hi Muhammad,

You will have to consult the data sheets on the different components for their individual current demands. It is impossible from what you have told us to know the current of, for example, the gear motors as there are many different sizes. It is unlikely that all of the components of your design would be active at the same time but it is a good idea to size your power source to accommodate the possibility that all would operate at full load simultaneously. It is also a good idea to over size the power supply so that you give it some working room. One of the most dense power sources are lithium batteries but they come with very specific recharging protocols. Other types of batteries are more tolerant in their recharge schemes but they will add more weight to your project and consume more space. Check your data sheets and add up all the projected load currents, add an additional 25% for good measure. Determine the time over which this level of power will be needed and then look for the power source that will meet your needs. Batteries always have two limits, amount of current practically available and the amount of time this current can be supplied before the voltage drops to an unusable level. Good luck with your project.

John

Hi Muhammad,

You will have to consult the data sheets on the different components for their individual current demands. It is impossible from what you have told us to know the current of, for example, the gear motors as there are many different sizes. It is unlikely that all of the components of your design would be active at the same time but it is a good idea to size your power source to accommodate the possibility that all would operate at full load simultaneously. It is also a good idea to over size the power supply so that you give it some working room. One of the most dense power sources are lithium batteries but they come with very specific recharging protocols. Other types of batteries are more tolerant in their recharge schemes but they will add more weight to your project and consume more space. Check your data sheets and add up all the projected load currents, add an additional 25% for good measure. Determine the time over which this level of power will be needed and then look for the power source that will meet your needs. Batteries always have two limits, amount of current practically available and the amount of time this current can be supplied before the voltage drops to an unusable level. Good luck with your project.

John