Hi, i'm new to this board and to circuits. i am trying to control 6 different arms of my "crabot" (it's a robot that walks like a crab) but it's only a small project between me and a few friends so i'm trying to keep it low budget.
i found small actuators that are used to control automatic car door locks and i figured they would work for extending the legs, but the trouble is that to open they need current one way and to close the current needs to be reversed. i'm sure this is a simple thing for the most of you but the way i drew it out didn't work, there are 2 wires coming out of the actuators. lets call them a positive and a negative. the way i thought would be easiest would be to connect the positive from the actuator to both the positive and negative of the battery, with a transistor acting as a switch on the positive side, and then the same coming from the negative wire of the actuator. the problem is that when i turn it on there is a direct path from bat+ to bat-. i was wondering if there is a one way valve for electricity. because that would make sure the grounds didnt act as a route to short. i dont know what to call it really and i'm sure its in a previous post but i couldnt find anything.
i have to wire 10 motors total. all have to have reversible current. i am eventually going to hook them all through a serial port. but i will cross that bridge when i get there.
any help would be much appriciated.
i found small actuators that are used to control automatic car door locks and i figured they would work for extending the legs, but the trouble is that to open they need current one way and to close the current needs to be reversed. i'm sure this is a simple thing for the most of you but the way i drew it out didn't work, there are 2 wires coming out of the actuators. lets call them a positive and a negative. the way i thought would be easiest would be to connect the positive from the actuator to both the positive and negative of the battery, with a transistor acting as a switch on the positive side, and then the same coming from the negative wire of the actuator. the problem is that when i turn it on there is a direct path from bat+ to bat-. i was wondering if there is a one way valve for electricity. because that would make sure the grounds didnt act as a route to short. i dont know what to call it really and i'm sure its in a previous post but i couldnt find anything.
i have to wire 10 motors total. all have to have reversible current. i am eventually going to hook them all through a serial port. but i will cross that bridge when i get there.
any help would be much appriciated.