I want to power a micro controller and a vibration (piezo) sensor circuit (for waking up the micro controller) using solar power as an energy source. I understand that I need at least four things:
1. Solar panel array
2. Charge controller - 3 port setup, 1 for solar panel, 1 for battery, 1 for external load
3. Battery
4. Load center for distributing power to the two loads, the uC and a comparator circuit for the sensing element
My question is, can you plug just any load into a charge controller, as long as it is below the maximum output power rating of the charge controller? Or does the load need to match the voltage of the battery (e.g. 12 V)? And if this is the case, what is the easiest way to convert the output to values within the operating voltages of my microcontroller (1.8-3.6V)?
I have spent some time looking for an answer on the internet for this, but haven't come up with any concrete information to my question, but I hope that this post isn't too trivial. I appreciate any tips you guys can provide.
1. Solar panel array
2. Charge controller - 3 port setup, 1 for solar panel, 1 for battery, 1 for external load
3. Battery
4. Load center for distributing power to the two loads, the uC and a comparator circuit for the sensing element
My question is, can you plug just any load into a charge controller, as long as it is below the maximum output power rating of the charge controller? Or does the load need to match the voltage of the battery (e.g. 12 V)? And if this is the case, what is the easiest way to convert the output to values within the operating voltages of my microcontroller (1.8-3.6V)?
I have spent some time looking for an answer on the internet for this, but haven't come up with any concrete information to my question, but I hope that this post isn't too trivial. I appreciate any tips you guys can provide.