Home-made one-touch top

[RascalRuss]

Hi Guys,

hope you dont mind me adding to this.

this is actually a very simple circuit to make. You can do it using a 555 timer circuit on both the open and close lines on the switch. This simple keeps the switch on for around 13 - 15 seconds after touching the switch once, very very simple. Also, if you need to service the engine, you simple press the button once, and turn off the ignition ocne the top if at the service position which automatically stops power to the top.

I can send you the circuit if you need it.

They is a more clever device that I am currently writing code for using a pic, this will read the speed to prevent opening at over 40mph. But even more cool, I am tapping in to the remote windows, so when you press and hold the remote control (key fob) to close the windows, it also closes the roof remotely.

If you are interested in this let me know and I will post out either the pic alone or the circuit if you want it for the costs of just materials and postage. I have to finish it first though.

many thanks

Russ

[John V]

Hi Guys,

. . . this is actually a very simple circuit to make. You can do it using a 555 timer circuit on both the open and close lines on the switch. This simple keeps the switch on for around 13 - 15 seconds after touching the switch once, very very simple. Also, if you need to service the engine, you simple press the button once, and turn off the ignition ocne the top if at the service position which automatically stops power to the top.

I just want to clarify a few things. First, it is a bit more complicated if you want to implement the ability to stop the top mid-stroke by pushing the button the opposite direction - negating the need to turn off the ignition. Second, when you consider the safety interlocks that you might want to include (you wouldn't want a situation in which the top is trying to go up and down simultaneously...) it gets more complicated again. We spent a lot of time designing something that would have the functionality we wanted plus have absolutely no risk of causing damage to the car. For someone experienced in building electronics it can be done. At the same time it's not so simple that I would trust a complete beginner to build it from scratch, especially if it's to be small enough to fit inside the dashboard. What we offer is a complete plug and play solution for a cost that is much less than the other packaged solutions out there.

We still have a few left from our initial build. If anybody is interested, please don't hesitate to contact us at onetouchtop (at) hotmail (dot) com

Edited January 2, 2007 by John V

[jmatta]

Received my one-touch top device yesterday...thanks John! Unfortunately, the car won't see the mod until spring when the weather warms up. Other than a big snow storm in early December, northern Chicago suburbs have experienced a mild winter; still too much salt on the roads, though.

[John V]

Received my one-touch top device yesterday...thanks John! Unfortunately, the car won't see the mod until spring when the weather warms up. Other than a big snow storm in early December, northern Chicago suburbs have experienced a mild winter; still too much salt on the roads, though.

No problem, and be sure to let me know what you think once it's installed!

[RascalRuss]

Hi Johny,

Yup I completely agree, But you can create the 555 timer circuit to be completely flip flop so there is no way of getting up and down activation simultaniously. Also, you can IC filter it to prevent premature activation.

I would be interested in reviewing your design if you have any left?

Russ

Edited January 5, 2007 by RascalRuss

[John V]

Hi Johny,

Yup I completely agree, But you can create the 555 timer circuit to be completely flip flop so there is no way of getting up and down activation simultaniously. Also, you can IC filter it to prevent premature activation.

I would be interested in reviewing your design if you have any left?

Russ

Russ,

It's John V, not Johny. ;) We do have a couple left. If you would like one, just PayPal $99.00 to "onetouchtop@hotmail.com" and we'll get one shipped right out to you.

Thanks,

John V

[John V]

We have a couple of units still available for sale. Please do not hesitate to e-mail (onetouchtop@hotmail.com) if you have interest.

Thanks!

[jmatta]

Hi John,

Just got around to installing my one-touch top opener...great device, easy to instal and so convenient! Thanks again for producing a terrific product at a very competitive price. When my friend sees mine he'll want to order one too; hopefully there are a few left. Anyone who is interested in this product, I give it my endorsement.

Thanks!

Jerry Matta

2002 Boxster S

[John V]

Hi John,

Just got around to installing my one-touch top opener...great device, easy to instal and so convenient! Thanks again for producing a terrific product at a very competitive price. When my friend sees mine he'll want to order one too; hopefully there are a few left. Anyone who is interested in this product, I give it my endorsement.

Thanks!

Jerry Matta

2002 Boxster S

Thanks for the kind words, Jerry. Glad you're happy. If you have any problems in the future please don't hesitate to e-mail us!

John