Old 08-10-2020, 01:28 PM   #3001
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Nice. That's some classic husband-geek DIY action right there. Tennis ball on a string? Not for my spouse!

Does the IR feed some kind of relay or transistor to control power to the arduino, then?

I take it those patterns in the LEDs something you programmed via the arduino?
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Old 08-10-2020, 01:57 PM   #3002
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Nice. That's some classic husband-geek DIY action right there. Tennis ball on a string? Not for my spouse!
A 3D printer and some microcontrollers takes Honey-Do lists to a whole new level.

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Does the IR feed some kind of relay or transistor to control power to the arduino, then?
I just shut the display off when there is no motion for 2 minutes. Since the Arduino is also the thing reading the IR output, can't really shut it down per se. The IR unit is just a voltage divider and it has it's own circuitry that throws the data pin to 5V (HIGH) if there is motion 0V (LOW) if no motion. That means it will light up if you walk by but no biggie, it will still time out and go dark.

Geek alert: I could use two ESP8266s in tandem, one a WiFi client of the other where the other talks directly to the Arduino via serial.

The client would be hidden in the car and run off the car power - then it would only activate when the car pulled in and/or cranked; it would then connect to the master unit over WiFi which would essentially result sensing when the car needed it to operate.

Maybe next time I'm super bored.

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I take it those patterns in the LEDs something you programmed via the arduino?
The animated ones were in one of the samples for the matrix - the solid color one (green) and the X and the little flashing square I did by just turning those individual LEDs on.

The code is here, all I did was hack the sample with my code. A tad sloppy since this was getting things done in a hurry. I started with a loop to do the X but for some reason that exact code in loop turned on the wrong LEDs so I just hardcoded. Code is here..

https://github.com/karbomusic/Garage...ParkAssist.ino
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Old 08-10-2020, 02:17 PM   #3003
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My friend has a much easier solution, still DIY, but just mechanics.
Suspend tennis balls on strings from the ceiling. One to aim at left of car, one to aim right of car (ensuring correct lateral position!) and one that just touches the windscreen when driven in far enough.

Time to prepare 10 mins to drill holes in balls, thread string, five to screw in hooks, a couple to tie up the strings.

Just now need something to get the car into position to ensure your balls just touch where they should.......


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Old 08-10-2020, 02:30 PM   #3004
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karbomusic will survive the zombie apocalypse.
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Old 08-10-2020, 03:04 PM   #3005
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My friend has a much easier solution, still DIY, but just mechanics.
Yea, that's what Clepsydrae mentioned but that's super-boring in this household. Only took an afternoon really.

I'm trading my car in and getting a Tesla Model 3 in a few weeks, can't wait to add it to the geek/hack list.
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Old 08-10-2020, 03:21 PM   #3006
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I'm trading my car in and getting a Tesla Model 3 in a few weeks, can't wait to add it to the geek/hack list.
Are you gonna hack the mainframe? I've heard about people rooting their cars but I thought it was sorta touchy with Tesla?
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Old 08-10-2020, 04:06 PM   #3007
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Are you gonna hack the mainframe? I've heard about people rooting their cars but I thought it was sorta touchy with Tesla?
Nah, it was more in jest being such a techy vehicle. It will fit right into the family though.
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Old 08-10-2020, 04:34 PM   #3008
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It will fit right into the family though.
You're doing it wrong. You want the family to fit into it.
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Old 08-10-2020, 04:44 PM   #3009
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I wanted wifeypoo, who just got a different car to park further back so we have more room between car/wall in the garage. Car is new to her, she was worried she couldn't easily tell the position so garage door wouldn't close on car.
That's pretty cool.
My sister used to hang a tennis ball from the ceiling so it touched the windshield when she was in the right spot.

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Old 08-10-2020, 04:49 PM   #3010
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You're doing it wrong. You want the family to fit into it.
I'm tired of waiting for it to show up.

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That's pretty cool.
My sister used to hang a tennis ball from the ceiling so it touched the windshield when she was in the right spot.

::
That's a popular option, would likely drive me nuts seeing it there.
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Old 08-10-2020, 07:40 PM   #3011
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If this product doesn't already exist I'd say you have a hit on your hands. Of course that would pit you against Big Tennis Ball, which has clearly already infiltrated this thread.
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Old 08-10-2020, 08:40 PM   #3012
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I'd like to recommend hanging a tennis ball from the ceiling. I know this is somewhat redundant at this point, but everybody else was doing it, and I was feeling left out.
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Old 08-11-2020, 02:48 AM   #3013
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That's a popular option, would likely drive me nuts seeing it there.
Me too.
I had to ask her what it was for when I first saw it.
I never realized her depth perception was off enough that she would need something like that.

your solution is definitely more fun

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Originally Posted by Allybye
Suspend tennis balls on strings from the ceiling. One to aim at left of car, one to aim right of car (ensuring correct lateral position!) and one that just touches the windscreen when driven in far enough.
That seems unnnecessarily complex.
My brother-in-law just set up one to touch the windshield where the rear-view mirror was mounted.
That gives both depth and center for the car.

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Old 08-11-2020, 03:26 AM   #3014
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......but only once you get in there.
Left and right guides to line you up before you hit the big boxes of electronics and of sensors etc on the floor and those in the flight cases on wheels might just have moved!

As balls are now far too common, suggest Karbo could hang up redundant mics instead.

.......or for better quality buy some new Neumanns..... super duper cardiods of course!

connect up to your spare PA via Reaper (switched on via an Arduino to save power only when the car is running), add just a tad of equalisation and normalisation....


And get a very satisfying feeling in your guts when you make a 'hit'

Last edited by Allybye; 08-11-2020 at 03:30 AM. Reason: patent modified...
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