635 and a Parallax Javelin Stamp

BobVal

New member
Intelligent Serial LCD Modules 635 - 20x4 RS-232/TTL-Serial Interface

I would like to use this LCD and keypad to make a communicating thermostat for my home heating system.

I plan on using a parallax Javelin Stamp module to control everything (I like C++ and Java)

Everything I see on the boards shows using this the way it was intended to be connected to a PC.

I am unable to locate a complete PDF for this module (found the 634full.pdf)

Does anyone have any code, pointers showing using the Keys on this Keypad for processing?

I pretty much want to retrieve the user pushing Up Arrow or Down Arrow to raise or lower the temperature
and will use the Side Arrows, Check Button and X button for other features.

Is it possible using the Javelin to receive the input from the pressed keys? I do not want this device to do anything; I will handle the presses and display the output.

ANY help ANY one?
Looking for additional LCD resources? Check out our LCD blog for the latest developments in LCD technology.
 

CF Support2

Administrator
For the Serial CFA635 series, start off by taking a look at the data sheet -- you can find the one for the variant that you are wanting to use here:

http://www.crystalfontz.com/products/635serial/635_serial_data_sheet.html

We also have our 635_WinTest software that has the source code available for it. The software accesses the functionality of the module, to include button presses. You can download the 635_WinTest and the source code from here:

http://www.crystalfontz.com/software/635WinTest635_WinTestSource_1_0.zip

The primary difference in the Serial and USB versions is that the Serial version has the RS-232 daughter board, and one set of GPIO lines is given up so that the serial version supports 3 fans headers on the SCAB instead of all 4. Other than that, the serial and USB versions are the same in functionality and communications.
 
Top