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Merge pull request #694 from Evg33/fr_waveshare144lcd
waveshare 1.44inch lcd hat
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| # -*- coding:UTF-8 -*- | ||
| ## | ||
| # | file : LCD_1IN44.py | ||
| # | version : V2.0 | ||
| # | date : 2018-07-16 | ||
| # | function : On the ST7735S chip driver and clear screen, drawing lines, drawing, writing | ||
| # and other functions to achieve | ||
| # | ||
| # Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| # of this software and associated documnetation files (the "Software"), to deal | ||
| # in the Software without restriction, including without limitation the rights | ||
| # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| # copies of the Software, and to permit persons to whom the Software is | ||
| # furished to do so, subject to the following conditions: | ||
| # | ||
| # The above copyright notice and this permission notice shall be included in | ||
| # all copies or substantial portions of the Software. | ||
| # | ||
| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| # FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| # LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| # THE SOFTWARE. | ||
| # | ||
|
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||
|
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| import RPi.GPIO as GPIO | ||
| import time | ||
| import numpy as np | ||
| from . import config | ||
|
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| LCD_1IN44 = 1 | ||
| LCD_1IN8 = 0 | ||
| if LCD_1IN44 == 1: | ||
| LCD_WIDTH = 128 #LCD width | ||
| LCD_HEIGHT = 128 #LCD height | ||
| LCD_X = 2 | ||
| LCD_Y = 1 | ||
| if LCD_1IN8 == 1: | ||
| LCD_WIDTH = 160 | ||
| LCD_HEIGHT = 128 | ||
| LCD_X = 1 | ||
| LCD_Y = 2 | ||
|
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| LCD_X_MAXPIXEL = 132 #LCD width maximum memory | ||
| LCD_Y_MAXPIXEL = 162 #LCD height maximum memory | ||
|
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||
| #scanning method | ||
| L2R_U2D = 1 | ||
| L2R_D2U = 2 | ||
| R2L_U2D = 3 | ||
| R2L_D2U = 4 | ||
| U2D_L2R = 5 | ||
| U2D_R2L = 6 | ||
| D2U_L2R = 7 | ||
| D2U_R2L = 8 | ||
| SCAN_DIR_DFT = U2D_R2L | ||
|
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|
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| class LCD: | ||
| def __init__(self): | ||
| GPIO.setmode(GPIO.BCM) | ||
| self.width = LCD_WIDTH | ||
| self.height = LCD_HEIGHT | ||
| self.LCD_Scan_Dir = SCAN_DIR_DFT | ||
| self.LCD_X_Adjust = LCD_X | ||
| self.LCD_Y_Adjust = LCD_Y | ||
|
|
||
| """ Hardware reset """ | ||
| def LCD_Reset(self): | ||
| GPIO.output(config.LCD_RST_PIN, GPIO.HIGH) | ||
| config.Driver_Delay_ms(100) | ||
| GPIO.output(config.LCD_RST_PIN, GPIO.LOW) | ||
| config.Driver_Delay_ms(100) | ||
| GPIO.output(config.LCD_RST_PIN, GPIO.HIGH) | ||
| config.Driver_Delay_ms(100) | ||
|
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||
| """ Write register address and data """ | ||
| def LCD_WriteReg(self, Reg): | ||
| GPIO.setmode(GPIO.BCM) | ||
| GPIO.setup(config.LCD_DC_PIN, GPIO.OUT) | ||
| GPIO.output(config.LCD_DC_PIN, GPIO.LOW) | ||
| config.SPI_Write_Byte([Reg]) | ||
|
|
||
| def LCD_WriteData_8bit(self, Data): | ||
| GPIO.output(config.LCD_DC_PIN, GPIO.HIGH) | ||
| config.SPI_Write_Byte([Data]) | ||
|
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||
| def LCD_WriteData_NLen16Bit(self, Data, DataLen): | ||
| GPIO.output(config.LCD_DC_PIN, GPIO.HIGH) | ||
| for i in range(0, DataLen): | ||
| config.SPI_Write_Byte([Data >> 8]) | ||
| config.SPI_Write_Byte([Data & 0xff]) | ||
|
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||
| """ Common register initialization """ | ||
| def LCD_InitReg(self): | ||
| #ST7735R Frame Rate | ||
| self.LCD_WriteReg(0xB1) | ||
| self.LCD_WriteData_8bit(0x01) | ||
| self.LCD_WriteData_8bit(0x2C) | ||
| self.LCD_WriteData_8bit(0x2D) | ||
|
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| self.LCD_WriteReg(0xB2) | ||
| self.LCD_WriteData_8bit(0x01) | ||
| self.LCD_WriteData_8bit(0x2C) | ||
| self.LCD_WriteData_8bit(0x2D) | ||
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| self.LCD_WriteReg(0xB3) | ||
| self.LCD_WriteData_8bit(0x01) | ||
| self.LCD_WriteData_8bit(0x2C) | ||
| self.LCD_WriteData_8bit(0x2D) | ||
| self.LCD_WriteData_8bit(0x01) | ||
| self.LCD_WriteData_8bit(0x2C) | ||
| self.LCD_WriteData_8bit(0x2D) | ||
|
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| #Column inversion | ||
| self.LCD_WriteReg(0xB4) | ||
| self.LCD_WriteData_8bit(0x07) | ||
|
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| #ST7735R Power Sequence | ||
| self.LCD_WriteReg(0xC0) | ||
| self.LCD_WriteData_8bit(0xA2) | ||
| self.LCD_WriteData_8bit(0x02) | ||
| self.LCD_WriteData_8bit(0x84) | ||
| self.LCD_WriteReg(0xC1) | ||
| self.LCD_WriteData_8bit(0xC5) | ||
|
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| self.LCD_WriteReg(0xC2) | ||
| self.LCD_WriteData_8bit(0x0A) | ||
| self.LCD_WriteData_8bit(0x00) | ||
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| self.LCD_WriteReg(0xC3) | ||
| self.LCD_WriteData_8bit(0x8A) | ||
| self.LCD_WriteData_8bit(0x2A) | ||
| self.LCD_WriteReg(0xC4) | ||
| self.LCD_WriteData_8bit(0x8A) | ||
| self.LCD_WriteData_8bit(0xEE) | ||
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| self.LCD_WriteReg(0xC5)#VCOM | ||
| self.LCD_WriteData_8bit(0x0E) | ||
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| #ST7735R Gamma Sequence | ||
| self.LCD_WriteReg(0xe0) | ||
| self.LCD_WriteData_8bit(0x0f) | ||
| self.LCD_WriteData_8bit(0x1a) | ||
| self.LCD_WriteData_8bit(0x0f) | ||
| self.LCD_WriteData_8bit(0x18) | ||
| self.LCD_WriteData_8bit(0x2f) | ||
| self.LCD_WriteData_8bit(0x28) | ||
| self.LCD_WriteData_8bit(0x20) | ||
| self.LCD_WriteData_8bit(0x22) | ||
| self.LCD_WriteData_8bit(0x1f) | ||
| self.LCD_WriteData_8bit(0x1b) | ||
| self.LCD_WriteData_8bit(0x23) | ||
| self.LCD_WriteData_8bit(0x37) | ||
| self.LCD_WriteData_8bit(0x00) | ||
| self.LCD_WriteData_8bit(0x07) | ||
| self.LCD_WriteData_8bit(0x02) | ||
| self.LCD_WriteData_8bit(0x10) | ||
|
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| self.LCD_WriteReg(0xe1) | ||
| self.LCD_WriteData_8bit(0x0f) | ||
| self.LCD_WriteData_8bit(0x1b) | ||
| self.LCD_WriteData_8bit(0x0f) | ||
| self.LCD_WriteData_8bit(0x17) | ||
| self.LCD_WriteData_8bit(0x33) | ||
| self.LCD_WriteData_8bit(0x2c) | ||
| self.LCD_WriteData_8bit(0x29) | ||
| self.LCD_WriteData_8bit(0x2e) | ||
| self.LCD_WriteData_8bit(0x30) | ||
| self.LCD_WriteData_8bit(0x30) | ||
| self.LCD_WriteData_8bit(0x39) | ||
| self.LCD_WriteData_8bit(0x3f) | ||
| self.LCD_WriteData_8bit(0x00) | ||
| self.LCD_WriteData_8bit(0x07) | ||
| self.LCD_WriteData_8bit(0x03) | ||
| self.LCD_WriteData_8bit(0x10) | ||
|
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| #Enable test command | ||
| self.LCD_WriteReg(0xF0) | ||
| self.LCD_WriteData_8bit(0x01) | ||
|
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| #Disable ram power save mode | ||
| self.LCD_WriteReg(0xF6) | ||
| self.LCD_WriteData_8bit(0x00) | ||
|
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| #65k mode | ||
| self.LCD_WriteReg(0x3A) | ||
| self.LCD_WriteData_8bit(0x05) | ||
|
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| #******************************************************************************** | ||
| #function: Set the display scan and color transfer modes | ||
| #parameter: | ||
| # Scan_dir : Scan direction | ||
| # Colorchose : RGB or GBR color format | ||
| #******************************************************************************** | ||
| def LCD_SetGramScanWay(self, Scan_dir): | ||
| #Get the screen scan direction | ||
| self.LCD_Scan_Dir = Scan_dir | ||
|
|
||
| #Get GRAM and LCD width and height | ||
| if (Scan_dir == L2R_U2D) or (Scan_dir == L2R_D2U) or (Scan_dir == R2L_U2D) or (Scan_dir == R2L_D2U) : | ||
| self.width = LCD_HEIGHT | ||
| self.height = LCD_WIDTH | ||
| if Scan_dir == L2R_U2D: | ||
| MemoryAccessReg_Data = 0X00 | 0x00 | ||
| elif Scan_dir == L2R_D2U: | ||
| MemoryAccessReg_Data = 0X00 | 0x80 | ||
| elif Scan_dir == R2L_U2D: | ||
| MemoryAccessReg_Data = 0x40 | 0x00 | ||
| else: #R2L_D2U: | ||
| MemoryAccessReg_Data = 0x40 | 0x80 | ||
| else: | ||
| self.width = LCD_WIDTH | ||
| self.height = LCD_HEIGHT | ||
| if Scan_dir == U2D_L2R: | ||
| MemoryAccessReg_Data = 0X00 | 0x00 | 0x20 | ||
| elif Scan_dir == U2D_R2L: | ||
| MemoryAccessReg_Data = 0X00 | 0x40 | 0x20 | ||
| elif Scan_dir == D2U_L2R: | ||
| MemoryAccessReg_Data = 0x80 | 0x00 | 0x20 | ||
| else: #R2L_D2U | ||
| MemoryAccessReg_Data = 0x40 | 0x80 | 0x20 | ||
|
|
||
| #please set (MemoryAccessReg_Data & 0x10) != 1 | ||
| if (MemoryAccessReg_Data & 0x10) != 1: | ||
| self.LCD_X_Adjust = LCD_Y | ||
| self.LCD_Y_Adjust = LCD_X | ||
| else: | ||
| self.LCD_X_Adjust = LCD_X | ||
| self.LCD_Y_Adjust = LCD_Y | ||
|
|
||
| # Set the read / write scan direction of the frame memory | ||
| self.LCD_WriteReg(0x36) #MX, MY, RGB mode | ||
| if LCD_1IN44 == 1: | ||
| self.LCD_WriteData_8bit( MemoryAccessReg_Data | 0x08) #0x08 set RGB | ||
| else: | ||
| self.LCD_WriteData_8bit( MemoryAccessReg_Data & 0xf7) #RGB color filter panel | ||
|
|
||
| #/******************************************************************************** | ||
| #function: | ||
| # initialization | ||
| #********************************************************************************/ | ||
| def LCD_Init(self, Lcd_ScanDir): | ||
| if (config.GPIO_Init() != 0): | ||
| return -1 | ||
|
|
||
| #Turn on the backlight | ||
| #GPIO.setup(config.LCD_BL_PIN, GPIO.OUT) | ||
| GPIO.output(config.LCD_BL_PIN,GPIO.HIGH) | ||
|
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| #Hardware reset | ||
| self.LCD_Reset() | ||
|
|
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| #Set the initialization register | ||
| self.LCD_InitReg() | ||
|
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| #Set the display scan and color transfer modes | ||
| self.LCD_SetGramScanWay(Lcd_ScanDir) | ||
| config.Driver_Delay_ms(200) | ||
|
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| #sleep out | ||
| self.LCD_WriteReg(0x11) | ||
| config.Driver_Delay_ms(120) | ||
|
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| #Turn on the LCD display | ||
| self.LCD_WriteReg(0x29) | ||
|
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| #/******************************************************************************** | ||
| #function: Sets the start position and size of the display area | ||
| #parameter: | ||
| # Xstart : X direction Start coordinates | ||
| # Ystart : Y direction Start coordinates | ||
| # Xend : X direction end coordinates | ||
| # Yend : Y direction end coordinates | ||
| #********************************************************************************/ | ||
| def LCD_SetWindows(self, Xstart, Ystart, Xend, Yend): | ||
| #set the X coordinates | ||
| self.LCD_WriteReg(0x2A) | ||
| self.LCD_WriteData_8bit(0x00) | ||
| self.LCD_WriteData_8bit((Xstart & 0xff) + self.LCD_X_Adjust) | ||
| self.LCD_WriteData_8bit(0x00) | ||
| self.LCD_WriteData_8bit(((Xend - 1) & 0xff) + self.LCD_X_Adjust) | ||
|
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| #set the Y coordinates | ||
| self.LCD_WriteReg (0x2B) | ||
| self.LCD_WriteData_8bit(0x00) | ||
| self.LCD_WriteData_8bit((Ystart & 0xff) + self.LCD_Y_Adjust) | ||
| self.LCD_WriteData_8bit(0x00) | ||
| self.LCD_WriteData_8bit(((Yend - 1) & 0xff )+ self.LCD_Y_Adjust) | ||
|
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| self.LCD_WriteReg(0x2C) | ||
|
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| def LCD_Clear(self): | ||
| #hello | ||
| _buffer = [0xff]*(self.width * self.height * 2) | ||
| self.LCD_SetWindows(0, 0, self.width, self.height) | ||
| GPIO.output(config.LCD_DC_PIN, GPIO.HIGH) | ||
| for i in range(0,len(_buffer),4096): | ||
| config.SPI_Write_Byte(_buffer[i:i+4096]) | ||
|
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| def LCD_ShowImage(self,Image,Xstart,Ystart): | ||
| if (Image == None): | ||
| return | ||
| imwidth, imheight = Image.size | ||
| if imwidth != self.width or imheight != self.height: | ||
| raise ValueError('Image must be same dimensions as display \ | ||
| ({0}x{1}).' .format(self.width, self.height)) | ||
| img = np.asarray(Image) | ||
| pix = np.zeros((self.width,self.height,2), dtype = np.uint8) | ||
| pix[...,[0]] = np.add(np.bitwise_and(img[...,[0]],0xF8),np.right_shift(img[...,[1]],5)) | ||
| pix[...,[1]] = np.add(np.bitwise_and(np.left_shift(img[...,[1]],3),0xE0),np.right_shift(img[...,[2]],3)) | ||
| pix = pix.flatten().tolist() | ||
| self.LCD_SetWindows(0, 0, self.width , self.height) | ||
| GPIO.output(config.LCD_DC_PIN, GPIO.HIGH) | ||
| for i in range(0,len(pix),4096): | ||
| config.SPI_Write_Byte(pix[i:i+4096]) |
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