Hi guys,
I bought a 12V battery 6800mAh and I want power from this battery Arduino and Raspberry Pi and possibly DC motors. I built a schematic as I show at my upload image. I know that arduino has its own regulator and 12V for it is not problem, but for Raspberry Pi I need range from 4.75 to 5.25V. When I use this regulator at ouput I show about 4.9V. But to the Rpi I have connected USB WiFi dongle, USB camera and Ethernet cable and when I use 5V 1A adapter from my HTC mobile all is OK. But when I use 4.9V it was reseting, but when I measure voltage at output of battery there was 4.7V and output of regulator 4.9V I mean it is impossible, for this reason I go to charge this battery and next I will post a reaction. But I need to know, that is possible powering Arduino and Raspberry Pi via this way. And then when all will be ok, what I need when I go to power DC motors?...Now I power it from 6.7V another battery, it only powers DC motors, but I want rebuild it only at one battery, what I need? 6V regulator or what?...but I think, that I need there something more or not?...Thanks for reply..
Schematic: http://prntscr.com/1wggzf
I bought a 12V battery 6800mAh and I want power from this battery Arduino and Raspberry Pi and possibly DC motors. I built a schematic as I show at my upload image. I know that arduino has its own regulator and 12V for it is not problem, but for Raspberry Pi I need range from 4.75 to 5.25V. When I use this regulator at ouput I show about 4.9V. But to the Rpi I have connected USB WiFi dongle, USB camera and Ethernet cable and when I use 5V 1A adapter from my HTC mobile all is OK. But when I use 4.9V it was reseting, but when I measure voltage at output of battery there was 4.7V and output of regulator 4.9V I mean it is impossible, for this reason I go to charge this battery and next I will post a reaction. But I need to know, that is possible powering Arduino and Raspberry Pi via this way. And then when all will be ok, what I need when I go to power DC motors?...Now I power it from 6.7V another battery, it only powers DC motors, but I want rebuild it only at one battery, what I need? 6V regulator or what?...but I think, that I need there something more or not?...Thanks for reply..
Schematic: http://prntscr.com/1wggzf