1. Home
  2. General Home Automation
  3. What chip was used on the DTMF Weeder Kit?

What chip was used on the DTMF Weeder Kit?

Hi gang!

I too would very much like Mister House to log outgoing calls as well.

I added a NetCallerID and enjoy it logging my incoming calls.

I joined Vonage just to get CallerID service, for this purpose.

Mister House is compatible with a Weeder kit, which is no longer available... So...

I called Mr. Weeder today.

"The Outgoing DTMF phone monitor kit was discontinued, as were all kits, around 5 or 6 years ago."

I asked if he was going to produce a finished product instead? "No."

He's focused on Industrial products, and has strayed away from Home Automation. "There is no market for kits."

So I asked him for the schematics and board layout. "I don't have that stuff anymore", he said.

Do I believe him? As an engineer-type myself I can assure you - I never throw anything away. Maybe HE did, how knows?

"Besides..." he added, "The chip I used was made by Motorola. It was discontinued 6 years ago. So it wouldn't do you any good to have the schematic anyway!"

Well I have found a few chips that do the job, including an old Motorola part. And a current source for that part being under $5.00

So now the board layout and schematic would be very helpful indeed.

Do any of you HA buffs have this Weeder kit in use? Could you look at the chip for me?

I think it is the Motorola MC145436.

Whatever I make, I'll want it to act identically to the Weeder design soas to maintain Mister House compatibility.

Does the Weeder kit connect the the Parallel port? No CPU would be necessary to serialize the data...

Anybody have a spare Weeder kit they would part with?

Thanks for any help Terry Weeder and the HA community can offer.

Sincerely,

Jack Edin Logic Unlimited Aloha, Oregon

Reply to
Jack Edin
Loading thread data ...

The Weeder Telephone/Computer Interface kit (WTTCI-K) did use the MC145436 but it also used a PIC16C54 which decoded the DTMF and provided the multidrop RS232 interface. Aside from the fact that supplying you with the board layout and schematic would infringe Weeder's copyright it wouldn't do you any good without having the firmware for the PIC. If you plan to write your own PIC firmware, you may as well design the whole thing from the ground up.

Unless you can f>Hi gang!

Reply to
Dave Houston

As I said, I don't have the schematic. As such I really have no idea what went into his design...

If he went directly to the PC's parallel port, with a little low-level software, he wouldn't need a PIC.

Any leads on a surplus Weeder kit?

Dave, you did it again!

I just bought 2 of these, as well as some other stuff (telephone surge suppressor, SLA battery charger, & 8 relay kit) and it has shipped!

Looking forward to making this work.

This kit will put a character out the serial port as it comes along on the DTMF (phone line.) No formatting whatsoever.

And it doesn't terminate the line, either.

So there doesn't seem to be an indication of off-hook status either...

Mister House would have to time incoming data. After a period of inactivity, it'll have to terminate that entry to the log.

It also can't time the call's duration. Or can it?

Anybody else using the QK153 from Quality Kits with Mister House?

Worst case it may be necessary to re-write the kit's firmware. They use an Atmel 89C2051. They don't provide or make available the source code.

I wonder what the Weeder kit's protocol was... Anybody?

Thankx, again.

Jack :)

Reply to
Jack Edin

If you went straight to the parallel port I doubt MH could handle it. You'd need an interrupt.

Had you indicated up front that you wanted to do more than the Weeder kit was capable of I would have suggested...

http://electr>Dave Houst>> The Weeder Telephone/Computer Interface kit (WTTCI-K) did use the MC145436

Reply to
Dave Houston

Cabling-Design.com Forums website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.