CFA631 USB LCD
CFA-631 USB LCD 20x2 +Keypad, Red LED Backlight, STN Negative, Blue, Transmissive 0°C - +50°C 12:00
CFA631-RMF-KU1: Front, backlight on
(click image to see detail view)
CFA631-RMF-KU1:
With black overlay and backlight on
With black overlay and backlight on
CFA631-RMF-KU1:
The CFA-631 USB LCD's "Key Legends" allow the four keys to easily be assigned under host program control to perform different tasks. Once the host software enables a the key legend, the CFA-631's firmware will display the key legend. When the user presses a button on the keypad, the appropriate key legend inverts, so the user gets immediate feedback of the relationship between the legend and the keys function.
The CFA-631 USB LCD's "Key Legends" allow the four keys to easily be assigned under host program control to perform different tasks. Once the host software enables a the key legend, the CFA-631's firmware will display the key legend. When the user presses a button on the keypad, the appropriate key legend inverts, so the user gets immediate feedback of the relationship between the legend and the keys function.
(click image to see detail view)
CFA631-RMF-KU1:
This image shows a typical host software application of editing a systems IP address. The Key legends have been set up so the up and down keys would be used to change a digit, and the left and right keys would select the digit. When the user moves off the digits to the left or right, the host software would re-assign the key legends to then include "accept" (the check) or "cancel" (the 'X').
This image shows a typical host software application of editing a systems IP address. The Key legends have been set up so the up and down keys would be used to change a digit, and the left and right keys would select the digit. When the user moves off the digits to the left or right, the host software would re-assign the key legends to then include "accept" (the check) or "cancel" (the 'X').
(click image to see detail view)
CFA631-RMF-KU1:
The CFA-631 USB LCD Module has 8 "custom characters" (as do most character-based LCD modules). The custom characters in the CFA-631 are 6x8 dots instead of the more usual 5x7 dots. This larger "custom character", combined with the CFA-631's "tiled" characters and lines allows an area of the display to be used as a small graphic window. In the following images, we have used 631WinTest to display some "large numbers" in that graphic window.
The CFA-631 USB LCD Module has 8 "custom characters" (as do most character-based LCD modules). The custom characters in the CFA-631 are 6x8 dots instead of the more usual 5x7 dots. This larger "custom character", combined with the CFA-631's "tiled" characters and lines allows an area of the display to be used as a small graphic window. In the following images, we have used 631WinTest to display some "large numbers" in that graphic window.
(click image to see detail view)
CFA631-RMF-KU1: Additional view
(click image to see detail view)
CFA631-RMF-KU1:
Normally, since the large numbers are using all 8 of the custom characters, it would be impossible to have other graphic elements shown at the same time. The CFA-631's CGROM has many more useful characters in it than most LCDs, including some handy bar graph characters.
Normally, since the large numbers are using all 8 of the custom characters, it would be impossible to have other graphic elements shown at the same time. The CFA-631's CGROM has many more useful characters in it than most LCDs, including some handy bar graph characters.
(click image to see detail view)
CFA631-RMF-KU1:
Since the big numbers are using all the custom characters, the key legends (which use 6 of the 8 custom characters) cannot be used. Once again, the CFA-631's CGROM can help out, since it has arrows (for up & down), a "dot" (for enter) and a normal "X" can be used for cancel.
Since the big numbers are using all the custom characters, the key legends (which use 6 of the 8 custom characters) cannot be used. Once again, the CFA-631's CGROM can help out, since it has arrows (for up & down), a "dot" (for enter) and a normal "X" can be used for cancel.
(click image to see detail view)
CFA-631 USB LCD 20x2 +Keypad, RoHS Compliant, White Edge LED Backlight, STN Negative, Blue, Transmissive 0°C - +50°C 12:00
CFA631-TMF-KU1: Front, backlight on
(click image to see detail view)
CFA631-TMF-KU1:
With aluminum overlay and backlight on
With aluminum overlay and backlight on
CFA631-TMF-KU1:
Shown with System Cooling Accessory Board (SCAB) and cable (both sold separately).
Shown with System Cooling Accessory Board (SCAB) and cable (both sold separately).
Back view
Features:
- The only 20x2 USB LCD with keypad designed to fit in a PC's 3.5" floppy disk drive bay.
- USB interface (115200 baud throughput)
- LED backlit negative mode STN 20x2 LCD
- Integrated LED backlit 4-button translucent silicon keypad
- "key legends" allows user assignment of soft keys to be shown easily on the LCD
- LCD characters are contiguous in both X and Y directions to allow the host software to display "gapless" bar graphs in horizontal or vertical directions
- Fully decoded keypad: any key combination is valid and unique
- Robust packet-based communications protocol with 16-bit CRC
- Built-in re-programmable microcontroller (factory operation)
- Non-volatile memory capability ("EEPROM"):
- Customize the "power-on" display settings
- 16-byte "scratch" register for storing IP, netmask, system serial number
- Expandable firmware and configurable hardware that can be customized to add specific features for your system needs:
- Hardware or software watchdog can provide system reset
- Other analog or digital I/O
- Provide "dongle" functionality for software copy protection
- Autonomous hardware monitoring
- Fan control and monitoring, temperature monitoring
Download:
Windows compatible test/demonstration program with source code.
Linux compatible command-line demonstration program with C source code (8K)
Windows USB driver and installation instructions.
Supported by CrystalControl freeware
Dimensions:
- PCB Width: 101.6mm
- PCB Height: 25.4mm
- Viewing Width: 66mm
- Viewing Height: 13.8mm
- Active Area Width: 63.55mm
- Active Area Height: 10.35mm
- Character Width: 2.6mm
- Character Height: 4.5mm
- PCB Depth: 93.1mm
- Keystroke Travel: 2mm
- Dot Pitch Width: 0.53mm
- Dot Pitch Height: 0.65mm
- Dot Size Width: 0.48mm
- Dot Size Height: 0.6mm
- Character Pitch Width: 3.18mm
- Character Pitch Height: 5.2mm
- Weight: 80g
- Characters: 20
- Lines: 2
- Overall Width: 101.6mm
- Overall Height: 25.4mm
- Overall Depth: 93.1mm
Documents:
Block Diagram (13KB)1 to 1 Template (36KB)
Metric Scale Drawing (13KB)
Datasheets
