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Display Modules

melabs 20-Character by 4-Line Serial LCD Module
melabs 16-Character by 2-Line Serial LCD Module
melabs Serial LCD Controller Board
4-Digit Serial LED (standard display)
4-Digit Serial LED (clock display)

melabs Serial LCD Module 20 character x 4 line - $49.95

Purchase at mcumart.com

Volume Pricing
Quantity Price Each
1-9 $49.95
10-24 $45.00
25-99 $40.00
100+ $35.00

The melabs Serial LCD (SLCD) can display serial data from either asynchronous RS232-style or synchronous I2C input. A range of baud rates from 2400 to 57,600 are available and the serial data is buffered so that no delay is necessary when transmitting data to the SLCD.

The display includes an LED backlight with variable brightness. The serial LCD board is also available separately for use with other displays that utilize a Hitachi HD44780 or equivalent controller IC.

  • Software-controlled, variable backlight (Off to Full Brightness in 256 steps).

  • Asynchronous serial supported at baud rates of  2400, 9600, 19200, and a blistering 57600. (jumper selectable)

  • Jumper-selectable input inversion for use with either True Mode or Inverted Mode Serial.  Connect directly to a PC serial port or to an output pin on a  microcontroller.

  • Compatible with both RS-232 (+/- 12V) and TTL (0-5V) levels.

  • Synchronous serial I2C input up to 400K bps.

  • Change I2C slave address via jumpers or with a software command.

  • 80-character buffered communication.

  • User-programmable boot screen memory allows a custom message to be displayed on power up.

  • Use standard commands compatible with Hitachi HD44780 or our easy-to-understand special protocol to control the display

  • Built-in special functions include scroll up, scroll down, set backlight, select line, display bargraph, cursor appearance, change I2C address, save/recall strings.

  • Onboard non-volatile memory allows you to save custom messages and then recall/display them with a short command.

  • Fast bargraph displays (up to the full width of the display) can be anchored on the left side or right side.  Fast enough to display stereo audio levels!

  • 5-volt operation with less than 5mA current consumption (backlight off)

  • 4-line display PCB (outside edge) measures 98mm wide and 60mm high

Download Documentation


melabs Serial LCD Module 16 character x 2 line - $39.95

Purchase at mcumart.com

Volume Pricing
Quantity Price Each
1-9 $39.95
10-24 $36.00
25-99 $32.00
100+ $28.00
Same set of features as our 20 x 4 model above, but in a smaller display with 2 lines of 16 characters each.

2-line display PCB (outside edge) measures 80mm wide and 36mm high.

Download Documentation


melabs Serial LCD Controller Module - $24.95

Purchase at mcumart.com

Volume Pricing
Quantity Price Each
1-9 $24.95
10-24 $20.00
25-99 $17.50
100+ $12.50

The melabs Serial LCD Controller (SLCDC) can drive displays that use the Hitachi HD44780 or equivalent chipset.  It accepts serial data from either asynchronous RS232-style or synchronous I2C input. A range of baud rates from 2400 to 57,600 are available and the serial data is buffered so that no delay is necessary when transmitting data to the SLCDC.

The Controller offers both dual-row and single-row header patterns for connecting LCDs of various configurations.  Header pins and double sided tape are included to facilitate mounting.  LCD is not included.

  • Software-controlled, variable backlight (Off to Full Brightness in 256 steps).*

  • Asynchronous serial supported at baud rates of  2400, 9600, 19200, and a blistering 57600. (jumper selectable)

  • Jumper-selectable input inversion for use with either True Mode or Inverted Mode Serial.  Connect directly to a PC serial port or to an output pin on a  microcontroller.

  • Compatible with both RS-232 (+/- 12V) and TTL (0-5V) levels.

  • Synchronous serial I2C input up to 400K bps.

  • Change I2C slave address via jumpers or with a software command.

  • 80-character buffered communication.

  • User-programmable boot screen memory allows a custom message to be displayed on power up.

  • Use standard commands compatible with Hitachi HD44780 or our easy-to-understand special protocol to control the display

  • Built-in special functions include scroll up, scroll down, set backlight, select line, display bargraph, cursor appearance, change I2C address, save/recall strings.

  • Onboard non-volatile memory allows you to save custom messages and then recall/display them with a short command.

  • Fast bargraph displays (up to the full width of the display) can be anchored on the left side or right side.  Fast enough to display stereo audio levels!

  • 5-volt operation with less than 5mA current consumption (backlight off)

* Backlight operation is dependent on capabilities and current requirements of the driven LCD module.

Download Documentation


SLED-C4 Serial 4-Digit LED Display Module (Standard Model)  $34.95

Purchase at mcumart.com

Standard Model: 4 individually-controllable, right-hand decimal points (no clock colon)

The SLED-C4 from Reynolds Electronics provides a simple asynchronous serial interface to a high contrast, four-digit, seven-segment, super red LED display module - with 6 unique built-in animations.  The display can be driven with a single pin from your microcontroller.

Download: SLED-C4 Display Datasheet

  • 6 unique, built-in display animations for printing, scrolling, clearing digits, and other special effects
  • Flicker-free multiplexed LED display with fast response times
  • Available with 4 right-hand decimal points, or clock type display with 2 colon LEDs
  • Two command modes for total control of individual LED segments
  • Animation speed control for enhanced creative freedom and custom effects
  • Stores display brightness setting in onboard non-volatile memory for automatic power-up brightness setting
  • Stores a four-digit splash screen in onboard non-volatile memory for automatic display at power-up
  • Eliminates the need for continuous display updates and refresh loop in the host controller's firmware
  • Simple, single-wire asynchronous serial control with pin-selectable data rates of 9600 or 19200 bps
  • Automatically refreshes and updates each display digit at ~1.2KHz
  • Low-power sleep mode current draw <100uA typical, with automatic display restore on wake-up
  • Flexible operating voltage range from 4.5 to 5.5 VDC
  • Small footprint PCB measuring only 2.4" x 1.2"
  • 2KHz PWM brightness control with 126 levels: 0 = off, 125 = max brightness
  • Multiplexed display digits for reduced power consumption
  • Auxiliary digital output pin signal end of onboard animation sequence, or may be used as digital output when built-animations are not used

SLED-C4C Serial 4-Digit LED Display Module (Clock Model) - $34.95

Purchase at mcumart.com

Clock Model: Same as Standard Model SLED-C4 above, but with 2 LEDs positioned in the center of the display that serve as a colon for time display.  The right-hand decimal points are disabled on this model.
 

Copyright 2008
microEngineering Labs, Inc.
Box 60039
Colorado Springs CO 80960
(719) 520-5323
(719) 520-1867 fax
email: support@melabs.com

Last Updated: 06/23/2008

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