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Serial LCD Display Board with SPI/I2C Serial Bus for 2x16 LCDs US$8.00

Serial LCD Display Board with SPI/I2C Serial Bus for 2x16 LCDs

The LCD2S-162 is an RoHS-compliant Serial LCD Daughter board that can be connected to a standard 16x2-character display module that supports 4-bit mode. The LCD2S-162 has a high-speed SPI/I2C serial bus. The I2C and SPI signals are available via a 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 very 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-162 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.

Serial Display Controller Features

  • Can be controlled via a high-speed SPI or I2C bus. Both buses can operate at speeds close to 1Mbits/sec
  • Two high-current, open collector outputs with output current up 1000mA each and relay protect 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

Download LCD2S I2C/SPI Daughter Board Datasheet (V1.40)

This product was added to our catalog on Tuesday 28 November, 2006.


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