Màn Hình Lcd 1602a Với Đèn Led 5v - Trắng
14 Đánh Giá
69 Đã Bán
86
39.300 đ
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thứ tư 09/06/2021 lúc 05:31 CH
Product description:
The needle is specially welded by masters with years of welding experience,
Lcd 1602a
New quality assurance pre-shipment testing.
Download the data yourself as follows::
Download method: Copy address to browser, get the data on the page according to the extract code, reducing the cumbersome issue of manual information
5v lcd 1602a, backlight
Standard 16022 lcd character module (Backlight/blue screen)
1602 standard 16-foot interface, of which:
Foot 1: Vss
Foot 2: Vdd 5v
Foot 3: V0 contrast adjustment end for lcd display, the comparison was weakest when powered, the highest contrast when grounded power supply, the contrast is too high to produce ghost shadows that can be adjusted by a 10k potentiometer when used
Foot 4: Rs for register selection, select the data register when high level、 select the command register when low level.
Foot 5: R/w for reading and writing signals, reading operations at high level, write operations at low level. When rs and rw are both low-level, write instructions or display addresses, when rs are low-level rw as high-level signals can be read, when rs are high-level rw for low levels, you can write data.
Foot 6: E end for enabler, when the e end is changed from a high level to a low level, lcd module executes command.
Foot 7~14: D0~d7 is 8 bits of data.
Foot 15: Backlight powered positive pole
Foot 16: Backlight power negative pole
1602 character generation memory within the lcd module (Cgrom) 160 different dot array characters have been stored, table 1 shows, these characters are:: Arabic numeral、 case-sensitive english alphabet、 common symbols、 and japanese false names, etc., each character has a fixed code, for example, the code for capital a is 01000001b (41h) Display time module displays the dot array character graphics in address 41h, we can see the letter a.
The following is the procedure for displaying a letter a at the location of the first character in the second line of the lcd module: Org 0000h
Rs equ p3.7 Determine how specific hardware is connected
Rw equ p3.6 Determine how specific hardware is connected
E equ p3.5 Determine how specific hardware is connected
Mov p1, # 00000001b Screen and cursor reset
Acall enable Invoke write to command subprogramme
Mov p1, # 0011 1000b Set display mode: 8 2 5x7
Acall enable Invoke write to command subprogramme
Mov p1, # 00001111b Monitor open、 cursor open、 cursor allows flashing
Acall enable Invoke write to command subprogramme
Mov p1, # 00000110b Words remain unchanged, automatic right shift of cursor
Acall enable Invoke write to command subprogramme
Mov p1, # 0c0h Write the display starting address (Second line first position)
Acall enable Invoke write to command subprogramme
Mov p1, # 01000001b A code
Setb rs Rs 1
Clr rw Rw0 Prepare to write data
Clr e E 0 Execution display command
Acall delay Determine whether the lcd is busy
Setb e E 1 Display completed, program parking
Ajmp
Enable:
Clr rs Subprogramme written to a control command
The needle is specially welded by masters with years of welding experience,
Lcd 1602a
New quality assurance pre-shipment testing.
Download the data yourself as follows::
Download method: Copy address to browser, get the data on the page according to the extract code, reducing the cumbersome issue of manual information
5v lcd 1602a, backlight
Standard 16022 lcd character module (Backlight/blue screen)
1602 standard 16-foot interface, of which:
Foot 1: Vss
Foot 2: Vdd 5v
Foot 3: V0 contrast adjustment end for lcd display, the comparison was weakest when powered, the highest contrast when grounded power supply, the contrast is too high to produce ghost shadows that can be adjusted by a 10k potentiometer when used
Foot 4: Rs for register selection, select the data register when high level、 select the command register when low level.
Foot 5: R/w for reading and writing signals, reading operations at high level, write operations at low level. When rs and rw are both low-level, write instructions or display addresses, when rs are low-level rw as high-level signals can be read, when rs are high-level rw for low levels, you can write data.
Foot 6: E end for enabler, when the e end is changed from a high level to a low level, lcd module executes command.
Foot 7~14: D0~d7 is 8 bits of data.
Foot 15: Backlight powered positive pole
Foot 16: Backlight power negative pole
1602 character generation memory within the lcd module (Cgrom) 160 different dot array characters have been stored, table 1 shows, these characters are:: Arabic numeral、 case-sensitive english alphabet、 common symbols、 and japanese false names, etc., each character has a fixed code, for example, the code for capital a is 01000001b (41h) Display time module displays the dot array character graphics in address 41h, we can see the letter a.
The following is the procedure for displaying a letter a at the location of the first character in the second line of the lcd module: Org 0000h
Rs equ p3.7 Determine how specific hardware is connected
Rw equ p3.6 Determine how specific hardware is connected
E equ p3.5 Determine how specific hardware is connected
Mov p1, # 00000001b Screen and cursor reset
Acall enable Invoke write to command subprogramme
Mov p1, # 0011 1000b Set display mode: 8 2 5x7
Acall enable Invoke write to command subprogramme
Mov p1, # 00001111b Monitor open、 cursor open、 cursor allows flashing
Acall enable Invoke write to command subprogramme
Mov p1, # 00000110b Words remain unchanged, automatic right shift of cursor
Acall enable Invoke write to command subprogramme
Mov p1, # 0c0h Write the display starting address (Second line first position)
Acall enable Invoke write to command subprogramme
Mov p1, # 01000001b A code
Setb rs Rs 1
Clr rw Rw0 Prepare to write data
Clr e E 0 Execution display command
Acall delay Determine whether the lcd is busy
Setb e E 1 Display completed, program parking
Ajmp
Enable:
Clr rs Subprogramme written to a control command