rpi 2n222A transistor 6V motor switch - Raspberry Pi Forums

i'm programmer not electrician, go easy. i'm building robot can follow people around house when enter. works, it's not power efficient. have 2 l298n motor controllers running 4 wheels, 2 wheels/controller. there little red led turns on when power going motor controllers, consumers power motor driving batteries. want raspi use 2n222a transistor switch, when code says move, gpio pin activates transistor , power starts flowing motor controllers. thus, robot consume low power while asleep until activated.

can tell me how wire thing , resistors use, if need capacitor etc? can't find example of doing raspi , don't want burn workstation down.

2-3 6v battery packs
motors draw 550-750ma while running
raspi 0 wireless
have ton of resistors
i'm open putting in capacitor if think needed

first of l298n 8 transistors setup dual h-bridge. google h-bidge understand it. haven't check specs of 2n222a won't handle current needed run motors , heat , have less efficiency l298n transistor dual h-bridge. able use drive 2 motors need total of 8 of create dual h-bridge well.

little led consume no power compared motors.

main power consumption motors, if want reduce power consumption @ using brush-less motors need different motor driver brushed motors using now.

other thing need @ efficiency of batteries. aware lies manufactures on battery specs crazy. faster drain battery less efficient unless designed handle rate of discharge. rc hobby lipo batteries r best size/capacity/weight/discharge rate

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