MIKROE-2453

LCD mini click PID: MIKROE-2453 Weight: 37 g   LCD mini click displays 2x16 monochrome characters on an LMB162XFW LCD display. It features  the MCP23S17 port expander and the MCP4161 digital potentiometer, both from Microchip. LCD mini  click is designed to run on either 3.3V or 5V power supply. It communicates with the target  microcontroller over SPI interface and the following pins on the mikroBUS™ line: PWM, INT, RST, AN.  LCD and backlight control The PWM pin onboard the LCD mini click is used for backlight control. While the digital potentiometer is used for contrast adjustments. 2x16 LCD display features 2x16 LDC displays are ideal for displaying short messages and numbers. They can display 16 characters per one line, 32 in total. The 5x8 dot font displays characters, symbols, and numbers clearly and vividly. Key features       16x2 monochrome display  LMB162XFW LCD   o White LED backlight  o Outline dimension: 53.0x20.0x9.1MAX  o Display color: deep blue, light yellow green  MCP23S17 IC   o External Reset input  o Low standby current: 1 µA (max.)  MCP4161 IC   o Low Wiper Resistance: 75Ω (typical)  o Serial Interface Inactive current (2.5 uA typical)  Interface: SPI  3.3V or 5V power supply  Specification  Product Type LCD Interfacing 2x16 LED displays with mikroBUS™ compatible development Applications boards On-board MCP23S17 port expander, MCP4161 digital potentiometer - both from modules Microchip Adapter for connecting 2x16 LCD displays, MCP23S17 port expander, Key Features MCP4161 digital potentiometer Onboard port expander for LCD control, digital potentiometer for contrast Key Benefits settings, PWM for backlight control. Interface SPI Power Supply 3.3V or 5V Compatibility mikroBUS Click board size S (28.6 x 25.4 mm)     Pinout diagram   This table shows how the pinout on LCD mini click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes    Pin  Pin  Notes  mikroBUStm  Digipot CS  CS2  1 AN  Reset for the port expander  RST  2 RST SPI chip select  CS  3 PWM 16 PWM Pulse‐Width Modulation  INT  15 INT  INT from the port expander  CS  RX  14 NC  Not connected  SPI clock  SCK  4 SCK TX  13 NC  Not connected  SPI Master Input Slave Output  MISO  5 MISO SDA 12 NC  Not connected  SPI Master Output Slave Input  MOSI  6 MOSI SDA 11 NC  Not connected  Power supply  +3.3V  7 3.3V Ground  GND  8 GND 5V  10 +5V Power supply  GND 9 GND Ground  Programming   The demo shows how to use the SPI LCD library to communicate with the LCD (with HD44780 compliant controllers) in 4-bit mode via the SPI interface. It also uses the PWM for the backlight and the on board digital potentiometer, for controlling display contrast, which can be accessed through SPI. The demo iterates through all the values for the backlight and the contrast intensity. Code snippet The main function of the demo. 01 void main() 02 { 03 system_init(); 04 05 SPI_Lcd_Out(1, 6, "mikroE"); 06 SPI_Lcd_Out(2, 2, "LCD mini click"); 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 } set_bcklight(0xFF); set_contrast(0xDF); Delay_ms(5000); while (1) { set_bcklight(value); set_contrast(value); value++; delay_ms(40); }                                 https://shop.mikroe.com/click/display/lcd-mini 2/24/2017