I have to sit in line with my truck. I sure could use a 5 min. nap sometimes, but have to stay awake all the time.
Here is what I want to build. I want to make a wooden box to sit on the dash of my truck. When I pull into line with in 10-25 ft of the back of the truck in front of me I want to flip on a switch and close my eyes. I want a buzzer to go off when the truck ahead of me moves, be it 5 or 20 min. later.
Do I want a ultrasonic sensor, like #2157351 from Jameco? Plus a DC 3-24 V Electronic Ton Buzzer Alarm 85 dB ?
I need a motion sensor system that works in reverse of normal. lol. Something that tells me when the truck in front is gone, not arrived.
Thanks.
Nelag
Here is what I want to build. I want to make a wooden box to sit on the dash of my truck. When I pull into line with in 10-25 ft of the back of the truck in front of me I want to flip on a switch and close my eyes. I want a buzzer to go off when the truck ahead of me moves, be it 5 or 20 min. later.
Do I want a ultrasonic sensor, like #2157351 from Jameco? Plus a DC 3-24 V Electronic Ton Buzzer Alarm 85 dB ?
I need a motion sensor system that works in reverse of normal. lol. Something that tells me when the truck in front is gone, not arrived.
Thanks.
Nelag