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Hayes Smartmodem 1200 to Wifi modem conversion.

dabone

Veteran Member
Joined
Feb 26, 2009
Messages
1,157
Location
Chattanooga, TN - USA
I like having a wifi modem on my older equipment, but missed the blinky lights. So I did this with a old hayes modem.
I already did a fork of Zimodem for a different project, so lets edit the source code, add 3 more leds, add a buffer for the signals and get to work.

Source code and schematics are here.

https://github.com/dabonetn/ZimodemESP8266Leds


QXVX7m5.jpg


I removed all the components from the original board, except for the LEDS, the resistor packs for the LEDs, the serial port, and the power switch. I designed my board to use the Pololu rs232 board, but had issues with it, so I used a Aibans Breakout (???) rs232 board I bought off amazon. Traces are cut and removed from the original sockets, and the 2 board are mounted using header strips. The esp8266 module is a D1 Mini pro to get an external antenna because the hayes case is metal sleeve.

C6qCvPn.jpg


And here we have the magic, lots of kynar wire, some larger wire for the power and a helping of hot glue.

F5fP1mn.jpg


Designed and 3d printed some mounting brackets for the antenna and power jack. +5, 1.5a or better.


aJeDEYI.jpg


And the front.. Blinky blinky... :)...

So, good use of a old modem? Or a horror that shouldn't exist??
 

Crawford

Experienced Member
Joined
Oct 21, 2008
Messages
274
Location
Maryland
Oh man! I am still chuckling at this.. great job, and I don’t think you ruined some kind of classic. If I thought I could locate my old modems I would replicate this.

Cheers!
 

scott451

Member
Joined
Nov 25, 2013
Messages
22
I liked dabone's project so much that I had to make it into a product. It runs the standard Zimodem ESP8266 firmware. It is a non-destructive replacement for the PCB in your existing Hayes smartmodem 1200 or 2400. Note, while it will fit in the later modems, the LEDs in the Hayes optima series aluminum cases are offset from the letters.

Price is $99. Plus CA tax, $6 shipping, and $4 paypal fee. 5V power adapter not included, add $8 if you need one.

I need to get at least 10 people interested to kick-off the build.

The second image is the original smartmodem 1200 and then below are two different hayes shells with the retromodem1200
 

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dabone

Veteran Member
Joined
Feb 26, 2009
Messages
1,157
Location
Chattanooga, TN - USA
Sweet design, but a bit too pricey for my taste.

I sell a Wifi modem for the 64 that also includes a 6551a and a printed case for under $50.00, is the bare pcb that much??
If so, maybe a redesign for 2 smaller boards and a 3d printed spacer? You could use a small IDC cable for interconnects.
 
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