I am using a monostable multivibrator (TLC555) to turn on a LED for 30 secs. I am running this off a 3v coin battery which goes into a voltage doubler(MAX1682). I want to use a hall effect to trigger the LED timer. (A car door [with a magnet attached] opening will trigger the hall effect which will trigger the timer.) I have a Texas Instruments DRV5013ADEDBZRQ1 Hall Effect that I will be using. I have pins 1(Vcc) and 3(Ground) tied to together with a .01uf cap. and Pins 1(Vcc) and 2(output) tied together with a 10k resistor. I have the output of the Hall Effect going to the trigger pin. When I use a magnet and pass it by the Hall Effect everything works perfect. So my question is... How do I make it so if the car door were to close before the 30 secs is up it will turn the timer and LED off until the door is reopened which will start the timer again. I know this will rely on the reset pin but how?!
I have attached a copy of my schematic but it does not include the hall effect. Only the timer circuit and voltage doubling circuit are pictured. Any help would be greatly appreciated.
I have attached a copy of my schematic but it does not include the hall effect. Only the timer circuit and voltage doubling circuit are pictured. Any help would be greatly appreciated.
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