LCD display 2x16 characters blue with connectors - justPi

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Характеристики

Promotion
BF20

Прочие свойства

EAN
5903351243131

Свойства

Тип
Запчасть для микрокомпьютера

Технические характеристики

Бренд
justPi

Экран

Тип экрана
alphanumeric
Сенсорный экран
Нет
Диагональ экрана
2.6 '', 2.6 ''
Разрешение экрана
2x16 znaków

Описание

Product description: LCD display 2x16 characters blue with connectors - justPi

Alphanumeric LCD display by justPi. It presents values in two lines, 16 characters in each. It is powered by 5V. It is characterized by extremely simple operation, high availability and numerous support for many microcontrollers. Characters are displayed on blue background.

Product compatible with Arduino

In standard set of libraries and sample programs downloaded from Arduino IDE environment, there is LiquidCrystal library, which allows to operate presented display.

LCD display 2x16 characters blue with connectors - justPi.

Leads description.

Pinout description of the display

Alphanumeric display has 12 pins, which are not marked on the board. Each of them corresponds in turn to:

  • 1 - VSS - system ground
  • 2 - VDD - 5V power supply
  • 3 - V0 - contrast
  • 4 - RS - select display instruction register (low state) or data register (high state)
  • 5 - R/W - read (low state) / write (high state)
  • 6 - E - unlocking the display
  • 7...14 - DB0...DB7 - data bus
  • 15 - LEDA - backlight power supply 5 V
  • 16 - LEDK - backlight system common ground
Controlling 2x16 LCD module

The display from justPi can be controlled in four modes:

  • 8-bit without reading the busy flag - eight lines of the data bus and two control lines (RS, E - RW connected to GND) are needed for transmission,
  • 8-bit with read busy flag - eight lines of the data bus and three control lines (RS, E, RW) are required for transmission,
  • 4-bit with readout of the busy flag - for transmission four lines of the data bus and three control lines are needed (RS, E, RW),
  • 4-bit without readout of the occupancy flag - for transmission four lines of the data bus and two control lines are needed (RS, E - RW connected to the ground).

The most often chosen communication mode is the 4-bit mode without reading the busy flag. Sending half a byte saves valuable I/O pins of microcontroller - only four data lines are used (in 8-bit mode eight of them are occupied). Not reading the busy flag makes it necessary to use software delays, but saves another line - R/W. This pin can be permanently connected to ground, because the data will be transported only one way - to the display.

Blue LCD display with connectors - justPi.

The LCD display has soldered connectors.

Technical specification of the display
  • Type: alphanumeric LCD display
  • Supply voltage: 5 V
  • Controller compatible with HD44780
  • Backlighting: white characters
  • Blue background
  • Operating temperature range: from -20°C to 70°C
  • Dimensions of one character: 2.45 x 5 mm
  • Module dimensions: 80 x 36 mm
Useful links
  • LCD support using Arduino
  • AVR library in C language
  • STL project file for printing the base