NHD‐0420D3Z‐FL‐GBW‐V3 Serial Liquid Crystal Display Module NHD‐ 0420‐ D3Z‐ F‐ L‐ G‐ B‐ W‐ V3‐ Newhaven Display 4 lines x 20 characters Model Transflective Yellow/Green LED Backlight STN‐Gray 6:00 view Wide Temperature (‐20°C~ +70°C) Firmware Version 3.00 RoHS Compliant Newhaven Display International, Inc. 2511 Technology Drive, Suite 101 Elgin IL, 60124 Ph: 847‐844‐8795 Fax: 847‐844‐8796 www.newhavendisplay.com [email protected] [email protected] Document Revision History Revision 0 1 Date 5/14/2012 10/1/2012 Description Initial Release Character address code updated Functions and Features • • • • • • • 4 lines x 20 characters Serial Interface: I2C, SPI or RS‐232(TTL) +5.0V power supply 1/16 duty, 1/5 bias 5x8 pixels with cursor ESD protection diodes RoHS Compliant [2] Changed by SB AK Mechanical Drawing 1 2 3 4 Rev 5 6 Description Date A A J1 J2 B B PIN ASSIGNMENT C 1 2 3 RX VSS VDD 1 2 3 4 5 6 SPISS SDO SCK/SCL SDI/SDA VSS VDD C D D Date 10/01/12 1 2 3 4 [3] Gen. Tolerance Unit ±0.3mm mm 5 Model: NHD-0420D3Z-FL-GBW-V3 6 Pin Description J1: Pin No. 1 2 3 Symbol RX VSS VDD External Connection MPU Power Supply Power Supply Function Description RS‐232 (TTL) Serial input port Ground Power supply for logic (+5.0V) J2: Pin No. 1 2 3 4 5 6 Symbol SPISS SDO SCK/SCL SDI/SDA VSS VDD External Connection MPU NC MPU MPU Power Supply Power Supply Function Description SPI Slave Select (NC in I2C mode) No Connect Serial Clock Serial Data In (SPI) / Serial Data (I2C) Ground Power Supply for logic (+5.0V) Recommended LCD connector: 2.54mm pitch pins on P1 or P2 Backlight connector: controlled by command Mates with: ‐ Jumper Communication Selection R1 Short Open Short Open R2 Short Short Open Open Protocol TEST SPI I2C RS‐232 Description Self‐test 100KHz max clock 100KHz max clock 5V, TTL signal [4] Electrical Characteristics Item Operating Temperature Range Storage Temperature Range Supply Voltage Supply Current (LCD + Backlight) Symbol Top Tst VDD IDD Supply for LCD (contrast) VDD‐V0 “H” Level input “L” Level input Condition Ta=25°C VDD=5.0V Min. ‐20 ‐30 4.7 ‐ Typ. ‐ ‐ 5.0 229 Max. +70 +80 5.5 ‐ Unit ⁰C ⁰C V mA Ta=25°C ‐ 4.5 ‐ V 0.8*VDD VSS ‐ ‐ VDD 0.2*VDD V V Vih Vil Optical Characteristics Item Viewing Angle ‐ Top Viewing Angle ‐ Bottom Viewing Angle ‐ Left Viewing Angle ‐ Right Contrast Ratio Response Time (rise) Response Time (fall) Symbol Condition Cr ≥ 3 Cr Tr Tf ‐ ‐ Min. ‐ ‐ ‐ ‐ ‐ ‐ ‐ Typ. 10 60 45 45 3 100 150 Max. ‐ ‐ ‐ ‐ ‐ 150 200 Controller Information Built‐in PIC16F690 controller. Please download specification at http://www.newhavendisplay.com/app_notes/PIC16F690.pdf [5] Unit ⁰ ⁰ ⁰ ⁰ ‐ ms ms Communication Information This display uses a built‐in PIC16F690 for serial communication. 100mS delay is required upon power‐up for the built‐in PIC to initialize the display controller. I2C protocol: To enter the I2C mode, place a jumper on R1. SDA and SDK have pull‐up resistors (10K Ohm) on R7 and R8. The default I2C address is 80 (50 hex). The I2C address can be changed to any 8‐bit value by command function, with the exception that the LSB (least significant bit) must always be ‘0’. Once the I2C address has been changed, it will be saved in the system memory, and it will revert back to the default address if either RS‐ 232 or SPI protocol is selected. The I2C interface is capable of receiving data at up to 100KHz clock rate. SPI protocol: To enter the SPI mode, place a jumper on R2. SPI mode has a normally high level idle clock. When Slave Select is LOW, data is sampled on the rising edge of the Clock. The SPI interface is capable of receiving data at up to 100KHz clock rate. RS‐232 (TTL) protocol: To enter the RS‐232 mode, both R1 and R2 should be open. The RS‐232 signal must be 5V TTL compatible. Communication format is 8‐bit data, 1 Stop bit, no parity, no hand‐shaking. Default BAUD rate is 9600, and is changeable with a command function. Once the BAUD rate has been changed, it will be saved in the system memory, and it will revert back to the default address if either I2C or SPI protocol is selected. ASCII Text To display normal text, just enter its ASCII number. A number from 0x00 to 0x07 displays the user defined custom character, 0x20 to 0x7F displays the standard set of characters, 0xA0 to 0xFD display characters and symbols that are factory‐masked on the ST7066U controller. 0xFE is reserved. [6] Table of Commands Prefix ‐ 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE 0xFE Command ‐ 0x41 0x42 0x45 0x46 0x47 0x48 0x49 0x4A 0x4B 0x4C 0x4E 0x51 0x52 0x53 0x54 0x55 0x56 0x61 0x62 0x70 0x71 0x72 Parameter 1 Byte None None 1 Byte None None None None None None None None None 1 Byte 1 Byte 9 Byte None None 1 Byte 1 Byte None None None Description Display Character Write (0x00 ~ 0xFF) Display on Display off Set cursor Cursor home Underline cursor on Underline cursor off Move cursor left one place Move cursor right one place Blinking cursor on Blinking cursor off Backspace Clear screen Set contrast Set backlight brightness Load custom character Move display one place to the left Move display one place to the right Change RS‐232 BAUD rate Change I2C address Display firmware version number Display RS‐232 BAUD rate Display I2C address Changing the I2C Slave Address Syntax hexadecimal 0xFE Length 1 byte 0x62 Execution time 100uS 100uS 100uS 100uS 1.5mS 1.5mS 1.5mS 100uS 100uS 100uS 100uS 100uS 1.5mS 500uS 100uS 200uS 100uS 100uS 3mS 3mS 4mS 10mS 4mS [addr] Parameter Parameter [addr] Description New I2C address, 0x00 – 0xFE The LSB is always ‘0’. Description This command sets the I2C address. The address must be an even number (LSB = 0). The address change requires 20 microseconds to take effect; therefore, the subsequent input must have an appropriate delay. The default I2C address can be restored if SPI or RS‐232 is selected as the communication mode. Default: 0x50 [7] Changing BAUD Rate Syntax hexadecimal 0xFE Length 0x61 [baud] Parameter Parameter [BAUD] Description This command sets the RS‐232 BAUD rate. The single byte parameter selects the desired BAUD rate as in the table below. The new BAUD rate requires 20 microseconds to take effect; therefore, the subsequent input must have an appropriate delay. The default BAUD rate can be restored if I2C or SPI is selected as the communication mode. Illegal parameter input will be discarded. Parameter 1 2 3 4 5 6 7 8 Description 1 byte New RS‐232 BAUD Rate, 1 ‐ 8 BAUD 300 1200 2400 9600 14400 19.2K 57.6K 115.2K Default: 9600 BAUD Turn On Display Syntax hexadecimal 0xFE 0x41 Parameter Parameter None Description This command turns on the LCD display screen. The display text is not altered. Default: LCD screen is on Turn Off Display Syntax Length None hexadecimal 0xFE Length None Description Turn on LCD screen 0x42 Parameter Parameter None Description Turn off LCD screen Description This command turns off the LCD display screen. The display text is not altered. Default: LCD screen is on [8] Set Cursor Position Syntax hexadecimal 0xFE 0x45 [pos] Parameter Parameter [pos] Length 1 byte Description Put cursor at location specified by [pos], 0x00 to 0x67 Description This command moves the cursor to a specified location where the next character will be displayed. The typical cursor position for a 4‐line 20‐character display is show below; a cursor position outside these ranges will not be viewable. Column 1 0x00 0x40 0x14 0x54 Line 1 Line 2 Line 3 Line 4 Column 20 0x13 0x53 0x27 0x67 Default: After a reset, the cursor is on position 0x00 Home Cursor Syntax hexadecimal 0xFE 0x46 Parameter Parameter None Length None Description This command moves the cursor to line 1, column 1 of the LCD screen. The display text is not altered. Default: None Turn On Underline Cursor Syntax hexadecimal 0xFE Description Position cursor at line 1 column 1 0x47 Parameter Parameter None Length None Description This command turns on the underline cursor. Default: Underline cursor is off Turn Off Underline Cursor Syntax hexadecimal 0xFE Length None Description Turn on underline cursor 0x48 Parameter Parameter None Description Turn off underline cursor Description This command turns off the underline cursor. Default: Underline cursor is off [9] Move Cursor Left One Space Syntax hexadecimal 0xFE 0x49 Parameter Parameter None Length None Description This command moves the cursor position left 1 space whether the cursor is turned on or not. The displayed character is not altered. Default: None Move Cursor Right One Space Syntax hexadecimal 0xFE Description Move cursor left 1 space 0x4A Parameter Parameter None Length None Description This command moves the cursor position left 1 space whether the cursor is turned on or not. The displayed character is not altered. Default: None Turn On Blinking Cursor Syntax hexadecimal 0xFE Description Move cursor right 1 space 0x4B Parameter Parameter None Length None Description This command turns on the blinking cursor. Default: The blinking cursor is off Turn Off Blinking Cursor Syntax hexadecimal 0xFE Length None Description Turn on the blinking cursor 0x4C Parameter Parameter None Description Turn off the blinking cursor Description This command turns off the blinking cursor. Default: The blinking cursor is off [10] Back Space Syntax hexadecimal 0xFE 0x4E Parameter Parameter None Description This command is destructive backspace. The cursor is moved back one space and the character on the cursor is deleted. Default: None Clear Screen Syntax Length None hexadecimal 0xFE Description Move cursor back one space, delete last character. 0x51 Parameter Parameter None Length None Description This command clears the entire display and place the cursor at line 1 column 1. Default: None Set Display Contrast Syntax hexadecimal 0xFE Description Clear LCD and move cursor to line 1 column 1. 0x52 Length 1 byte [contrast] Parameter Parameter [contrast] Description This command sets the display contrast. The contrast setting can be between 1 and 50, where 50 is the highest contrast. Default: 40 Set Backlight Brightness Syntax hexadecimal 0xFE Length 1 byte Description Set the display contrast, value between 1 and 50 0x53 [brightness] Parameter Parameter [brightness] Description Set the backlight brightness level, value between 1 and 8 Description This command sets the backlight brightness level. The value can be between 1 and 8. Default: 8 [11] Load Custom Characters Syntax hexadecimal 0xFE 0x54 Parameter Parameter [addr] [D0...D7] Description There is space for eight user‐defined custom characters. This command loads the custom character into one of the eight locations. The custom character pattern is bit mapped into 8 data bytes. The bit map for Spanish character ‘¿’ is shown in table below. To display the custom character, user has to enter the address of the character (0 to 8). Bit Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Length 1 byte 8 bytes [addr] [d0 …d7] 7 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 Description Custom character address, 0 – 7 Custom character pattern bit map 4 0 0 0 0 1 1 0 0 3 0 0 0 1 0 0 1 0 2 1 0 1 0 0 0 1 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 Hex 0x04 0x00 0x04 0x08 0x10 0x11 0x0E 0x00 Default: None Shift Display to the Left Syntax hexadecimal 0xFE 0x55 Parameter Parameter None Length None Description This command shifts the display to the left 1 space. The cursor position also moves with the display, and the display data is not altered. Default: None Shift Display to the Right Syntax hexadecimal 0xFE Length None Description Shift the LCD screen to the left 1 space. 0x56 Parameter Parameter None Description Shift the LCD screen to the right 1 space. Description This command shifts the display to the right 1 space. The cursor position also moves with the display, and the display data is not altered. Default: None [12] Display Firmware Version Number Syntax hexadecimal 0xFE 0x70 Parameter Parameter None Length None Description This command displays the firmware version. Default: None Display RS‐232 Baud Rate Syntax hexadecimal 0xFE Description Display the firmware version number. 0x71 Parameter Parameter None Description This command displays the RS‐232 BAUD rate. Default: None Display I2C Address Syntax Length None hexadecimal 0xFE Length None Description Display Baud Rate 0x72 Parameter Parameter None Description Display I2C Address Description This command displays the current I2C slave address. Default: None Example Initialization Program See program code at http://www.newhavendisplay.com/app_notes/Serial_LCD.txt [13] Built‐in Font Table [14] Quality Information Test Item Content of Test High Temperature storage Endurance test applying the high storage temperature for a long time. Endurance test applying the low storage temperature for a long time. Endurance test applying the electric stress (voltage & current) and the high thermal stress for a long time. Endurance test applying the electric stress (voltage & current) and the low thermal stress for a long time. Endurance test applying the electric stress (voltage & current) and the high thermal with high humidity stress for a long time. Endurance test applying the electric stress (voltage & current) during a cycle of low and high thermal stress. Endurance test applying vibration to simulate transportation and use. Low Temperature storage High Temperature Operation Low Temperature Operation High Temperature / Humidity Operation Thermal Shock resistance Vibration test Static electricity test Test Condition Endurance test applying electric static discharge. 2 ‐30⁰C , 48hrs 1,2 +70⁰C 48hrs 2 ‐20⁰C , 48hrs 1,2 +40⁰C , 90% RH , 48hrs 1,2 0⁰C,30min ‐> +25⁰C,5min ‐> +50⁰C,30min = 1 cycle 10 cycles 10‐55Hz , 15mm amplitude. 60 sec in each of 3 directions X,Y,Z For 15 minutes VS=800V, RS=1.5kΩ, CS=100pF One time Note 1: No condensation to be observed. Note 2: Conducted after 4 hours of storage at 25⁰C, 0%RH. Note 3: Test performed on product itself, not inside a container. Precautions for using LCDs/LCMs See Precautions at www.newhavendisplay.com/specs/precautions.pdf Warranty Information and Terms & Conditions http://www.newhavendisplay.com/index.php?main_page=terms [15] Note +80⁰C , 48hrs 3