Tattooed, I was looking at doing exactly the same idea, using zwave to start my truck, i have the mimolite in the truck, with the relay tied to my extra remote, and the input to a rc pass filter to give me feedback of whether its running or not. Works very well with my vera. I soldered 28 gauge wires to the contacts on my remote realitively easily, i have the equipment to do so. Figured id offer to help you out with the soldering. Id like to see the project move forward If possible, would you consider sending the pcb for the remote? Ill add the wires so you can tie to a dry contact easily.
I was looking at the ST presence sensor and did look into using the BEEP option to start my car starter remote but the delay between beep is not within the time frame for my starter. The idea is soldering the output of the buzzer on the presence sensor to my extra fob and get the feedback once the car started by cutting off power to the presence sensor ( or switch it to a low voltage to get low battery) for confirmation. any crazy coder out there can change from one beep to 3 with a press of a beep button on the ST app?
Dredging this up from the deep dark recesses of the forum.
An Arduino and a Z-Wave shield would provide the perfect solution for this. You could trigger a key fob remote, or trigger momentary contact relays directly in order to start/stop the car. You could even add door lock and trunk release functionality for whenever the car is within range of the house, and you aren’t…
Specific use case for above would be if I leave the house in the van, and the wife needs into the trunk of my sports car, but the doors are locked and I have the keys. She could just ask Alexa to pop the trunk on the car, or trigger it from her phone/control panel in the house. Do the same with the door locks to lock/unlock/arm/disarm the car alarm system.
I can do the hardware side of it, but I can’t write code to save my life. If anyone is interested in helping me build this project, I only need to purchase the Z-Wave shield, and then I can start the wiring functions.
For modern cars, you can also interface arduino with canbus and OBD2 systems that support lock/unlock/trunk/start functions using the onboard PCM/BCM.
I installed remote starts professionally for a long time, and triggering the car to do the functions for remote start/keyless meant I could install, configure and test an entire remote start system with keyless and all options in less than fifteen minutes on vehicles that had the advanced functions built in.
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