Let's Make Robots!

hbridge

Second set of eye's on a sn754410 driver setup

wired up

 

Note green LED(yes it's set up in the correct orientation and even when I hook up a vmeter I don't see a voltage) is not lit up.(red is power indicator) I feel like amature hour here with this simple circuit yet can't seem to get it to work. Tried 2 different chips. Recommendations are welcome...I only spent this morning looking at it....

h bridge

I am working on making a remote controle tank using a  infrared transmiter and reciever  i can make it go forward and turn but i dont know how to make a hbridge so it can go backwards to. and im not sure what transistors to use or in what configeration.

A list of transistors and schematic would be greatly appreciated

thank you

 

hbridge basic question

Does a hbridge requires a positive, negative, and ground?