Lcd display
- 1. https://technoelectronics44.blogspot.com/2020/08/16x2-lcd- display.html you can download source code 16X2 LCD DISPLAY LCD-Liquid Crystal Display Generally, these are small size displays, these are mainly useful in embedded products such as Coin box, Digital Energy meters, calculators, etc. These are different sizes in width like 16x1 LCD, 16x2 LCD, 16x4 LCD. 16x2 means 16- Rows and 2-columns, so it can print up to 32 characters. It has a 5x8 dot matrix to print a single character, so for a single character, it takes 5x8=40 pixels and for 32 characters it has 40x32=1280 pixels. 16x2 LCD Module 16x2 LCD - Pin diagram
- 2. Features Operating Voltage: 4.5v-5.5v Output maximum current: 5ma Total pins: 16 Built-in controller (HD44780 or Equivalent) Back led color: Blue, Green, Yellow. Rows /column: 16x2 Total characters: 16 Alphanumeric LCD display It can operate in an 8-bit or 4-bit data mode. 5x8 dot matrix for character representation Pin configuration 1 Vss Ground 2 Vcc/Vdd 5v(Positive terminal) 3 VE Contrast (brightness adjustment) 4 RS Register Select (to select Data mode or command mode) 5 R/W Read / Write Operation 6 EN Enable 7 D0 Data pin 0 8 D1 Data pin 1 9 D2 Data pin 2 10 D3 Data pin 3 11 D4 Data pin 4 12 D5 Data pin 5 13 D6 Data pin 6 14 D7 Data pin 7 15 A Anode (Backlight positive terminal) 16 K Cathode (Backlight negative terminal) Power supply pins Vdd – is the power supply positive pin Vss – is the power supply negative pin A – Anode terminal (positive terminal of Back Light LED) K – Cathode terminal (Negative terminal of Back Light LED) Contrast pin
- 3. Vee – to adjust the Backlight LED brightness By adjusting the voltage across this pin brightness will be adjust. Control pins RS – Register select, it is useful to select the command mode or data mode of operation RS=0 for command mode, whereas RS=1 for data mode. R/W – To perform the Read and write operation (Write Operation is an active LOW signal) En –Enable pin, we can assign the instructions by triggering the Enable pin. Data pins D0-D8 = Usually it has 8-data pins. It supports two modes of operations. 8-bit data mode 4-bit data mode You can select any one of the modes by using the commands, and there is no effect on performance. Commands Sr. No Code Command description 1 0x01 Clear display screen 2 0x02 Return home 3 0x04 Decrement cursor (shift cursor to left) 4 0x06 Increment cursor (shift cursor to right)/Entry mode 5 0x05 Shift display right 6 0x07 Shift display left 7 0x08 Display off, cursor off 8 0x0A Display off, cursor on 9 0x0C Display on, cursor off 10 0x0E Display on, cursor on 11 0x0F Display on, cursor blinking 12 0x10 Shift cursor position to left by one character
- 4. 13 0x14 Shift cursor position to right by one character 14 0x18 Shift the entire display to the left 15 0x1C Shift the entire display to the right 16 0x80 Force cursor to the beginning ( 1st line) 17 0xC0 Force cursor to the beginning ( 2nd line) 18 0x38 2 lines and 5×7 matrix 19 0x28 1 Line and 5x7 matrix HOW TO USE LCD? HOW TO IMPLEMENT LCD PROGRAM? Applications Digital Energy meters Telephone Coin boxes. Gaming devices Calculators Alternative Displays 8x1 LCD, 8x2 LCD, 16x4 LCD, I2C 16x2 LCD Display Related Articles 16x2 LCD interface with Arduino