Motion Sensors and remote controls

[goose1987]

Hi, i know this maybe an strange question, but i am creating an art project and i would like to know how i could wire up a remote control car to motion sensors? so instead of the handset controlling the car, motion sensors, triggered by someone walking past them, control and drive the car.

could anyone please help? or point me in a direction that would help. i would greatly appreciate a reply.

Thanks,
Allen Lowe

 

[Darkwood]

Not my field but an idea that comes to mind is take the board out of the remote control if its a radio control and have the motion sensor relay trigger a little timer board which in turn closes the move forward contact on the radio control pcb, it will only go which ever direction you connected though.

 

[goose1987]

hi, i am not too hot on electrical stuff, so i am kind of learning as i go along. so is it possible to be abit clearer? or communicate regular? to understand more possibly? i understand its not exactly your area but atleast you know more than me.

Thanks
Allen

 

[Darkwood]

If your remote isnt connected to the car by a wire then it will more than likely be radio controlled. If you strip apart your control you should see that pushing the joystick or button to make it move forward should create a link between two contacts thus moving the car in the given direction you chose, now if you solder a wire to the common and solder one to the contacts to make it move forward by touching the ends together it should move the car, once you have acheived this you need to run the wires through a relay of a passive infra-red (PIR) detector with built in timer, you can probably get one of these in a model shop or electronics shop.
Thus when the PIR detector is activated it closes its relay for a set amount of time closing the common to forward contact and making car move.
Because i dont have much info this is just a general idea and the working model may vary according to available parts.

 

[goose1987]

thanks. i have opened the handset/control, and its a small button. so when the joystick is pressed into a direction, it presses that corresponding button. so i would have to replace the switch/button with a PIR unit? would the pir unit have to have its own power source? or just get a larger power source instead of the battery's that already came with the handset/control?

Thanks again
Allen!