Reverse Polarity Every Time From Single Input

Hello, I cannot seem to find a simple way to reverse the output polarity of a set of relays every other time the signal is generated. Basically I am wanting to lock/unlock actuators with one button. I thought I remembered a relay system that could do this. I saw your latching relay with two outputs - I could send one output to a DPDT relay or a set of SPDT relays but I am having a hard time finding mechanical latching relays these days. Thank you in advance, Ray

Any chance you have a signal coming from your lock system that will tell you if the vehicle is locked or unlocked? For example a wire coming out of the actuator that gives you a ground signal when the door is locked.

I am building it from scratch on a 69 Chevelle. I am using basic + - - + actuators, so no feedback. I actually am building it after coming across this 12volt site and getting MANY ideas. It will be 100% relay/diode/433mhz controlled.

A magnet attached to the lock rod along with a magnetic alarm switch using the normally open contacts could give him a ground when locked situation.

Hello all, I figured out a work around with my hardware. Thanks anyway for the help. I am running 11 channels from my original 8, that frees up buttons for separate inputs.     __________________________________________    |           \|/    |            \ ____BT phone____ |      ___remote control___        ___SLAVE board__ [BOARD of 4    ] |      [    BOARD of 4    ]        [GANG/BANK of 4] [1 NO or NC   ]-/       [1 MOMENTARY NO/NC ] - - - > [    ganged    ]1A or 1B \       [2 open channel]        [2 MOMENTARY NO/NC ] - - - > [    ganged    ]2A or 2B \\__\ Forwards remote board 1-4 to A or B based on BT 1 setting. [3 open channel]        [3 MOMENTARY NO/NC ] - - - > [    ganged    ]3A or 3B // / [4 open channel]        [4 MOMENTARY NO/NC ] - - - > [    ganged    ]4A or 4B/       ----------------        --------------------        ---------------- 3 channels8 channels They are ganged as;           Throttle UP, DOWN, Engine START, STOP (carburetor needs to be pumped and fast idle)      then when switched it is Locks UNLOCK, LOCK, Windows UP, DOWN

The ASCii image got messed up with word wrap etc... Sorry folks.

If anyone cares I ended up using a digital FlipFlop Relay. Here is the nearly finished panel.