Dear all,I am working on my own robot. It has: 2 DC motors which are connected to 5 AA bateries. a raspberry pi which is connected to a 5v miniusb phonecharcher an Arduino, which is connected to/powered by a USB port of the raspberry pi a servo which is connected to the same 5 AA bateries as the 2 DC motors. a microsonic distance sensor which gets its power from the aruino.The idea is to have the whole setup running on 1 power source consisting of one or more rechargeable batteries.At the moment de motors slow down if i use the servo.(because they are on the same 5 aa batteries.) How can I prevent that with the new powersource which will also power the raspberry pi and the arduino?
The raspberry pi needs exactly 5 volts. If i connect a powersupply of 5 volts, it should work. But what if i then run the motors and the servo from the same powersupply? Won't that give less power to the raspberry pi and making it crash? It is not an option to add more batteries and volts, because the Raspberry pi can only handle 5 volts.
Hi fungus,I did read your previous post. From what I understand I can hook up 3 batteries to the servo and the motors. also have the 3 batteries connected to a USB dc converter. The dc converter will allways power 5 volts to the raspberry pi. Also I need to put decoupling capacitors between the USB DC converter and the raspberry pi.
I have a similar situation. However I would like to use 2 batteries. 1 to power the motors/servos1 to power pi + arduinoAfter reading the specs, it seems to me that my best bet would be to power the arduino using a 2 or 3 cell lipo giving me 7.4/11.1 V which is within the allowed range for the arduino. Then wire a min usb plug to the arduino +5 and gnd pins to power the pi.