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Serial LCD Display, 4x20 characters, yellow/green LED backlight US$18.00

Serial LCD Display, 4x20 characters, yellow/green LED backlight

The LCD2S-204BIY is a Serial LCD Character Display Module with a high-speed SPI/I2C serial bus. The LCD is a 420-character STN blue (negative) display with a yellow/green LED backlight, and is RoHS compliant. For convenience, the I2C and SPI signals are available via a 6-pin Micro-MaTch type connector, and a standard 2.54mm, 2x5-row pin header.

The following PIC microcontroller boards also feature a Micro-MaTch connector and thus could be connected to this board (if you also purchase or build a cable):

Matching male Micro-MaTch connectors are available to facilitate building a cable between these boards' female Micro-MaTch connectors for SPI and I2C interfaces. You can also purchase pre-made cables in 15 cm and 30 cm lengths.

A 2-way DIP switch is used to configure the unit for SPI or I2C operation (3 different addresses). The SPI mode is very simple, and enables you to control the display via a simple software routine. For more complex configurations, and multiple displays, the I2C bus can be used. The contrast and backlight are software controlled, and can be set to 254 levels each. A keypad with up to 16 buttons (4 rows by 4 columns, such as HC-KP) can be added to the display via a standard 10-pin, 2.54mm header. When using the I2C serial bus, an interrupt line will be activated when a key is pressed, informing the host that there are key data to be read. Alternatively, the LCD2S-204BIY can be polled to see if it has any pending keypad data.

The board has 5 user-configurable, general-purpose inputs/outputs. Two of them can deliver up to 1000mA each, and have protection circuitry for driving relays.

This product consists of an LCD Character Module with the LCD2S-204 board soldered onto the back of it.

Serial LCD Module Features

  • Can be controlled via a high-speed SPI or I2C bus. Both buses can operate at speeds close to 1Mbits/sec
  • Large number of LCD commands for moving cursor, moving display, and more
  • Up to 8 custom characters can be defined
  • Built-in commands for drawing bar graphs
  • Built-in commands for writing large characters spanning 2 columns and 3 rows
  • Two high-current, open collector outputs with output current up to 1000mA each and relay-protection circuitry
  • 3 general-purpose input/output pins
  • Keypad encoder for a keypad up to 16 keys (4 rows by 4 columns)
  • LCD Backlighting controlled via software; has 254 brightness levels
  • LCD Contrast controlled via software; has 254 contrast levels
  • User-configurable startup screen
  • 80-Byte buffer for messages received via serial interface
  • 6-pin Micro-MaTch connector with I2C, SPI and power signals
  • Standard 10-pin (1x10), 2.54mm connector for connecting a keypad of up to 4 rows by 4 columns
  • Standard 10-pin (5x2), 2.54mm connector with user outputs, I2C, SPI and power signals
  • DIP switch for setting serial mode and I2C address
  • Low current consumption without LCD backlight is about 4mA
  • Assembled with brand-name, quality components. For example, electrolytic capacitor used is extra-long-life rated, which is 5 times more than standard

LCD Specifications

  • Number of Characters: 20 characters x 4 lines
  • Character Table: English-European (RS in Datasheet)
  • Module dimension: 98.0 x 60.0 mm
  • View area: 77.0 x 25.2 mm
  • Active area: 70.4 x 20.8 mm
  • Dot size: 0.55 x 0.55 mm
  • Dot pitch: 0.60 x 0.60 mm
  • Character size: 2.96 x 4.75 mm
  • Character pitch: 3.55 x 5.35 mm
  • LCD type: STN, Negative, Transmissive, Blue
  • View direction: Wide viewing angle
  • Backlight Type: yellow/green LED
  • RoHS Compliant: lead free
  • Operating Temperature: -20C to +70C

Download LCD2S I2C/SPI Daughter Board Datasheet.
Download LCD Character Module Datasheet.

Optional Recommended Products for this Item
2x3 (6-pin) Micro-MaTch Connector Flat Ribbon Cable, 15cm+ US$2.40
2x3 (6-pin) Micro-MaTch Connector Flat Ribbon Cable, 30cm+ US$3.50
Keypad Add-on: 4 x 4, 8-pin+ US$6.00

This product was added to our catalog on Thursday 11 January, 2007.


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