kopia lustrzana https://github.com/peterhinch/micropython-nano-gui
Add ssd1327 driver (not yet documented).
peterhinch
rodzic
443b40c564
commit
766f3d3efa
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@ -21,6 +21,7 @@ Width and height are pixels.
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| 1.44C | 128 | 128 | TFT | [ST7735R][4d] | [Adafruit 2088][5m] | |
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| 1.5C | 160 | 128 | TFT | [ST7735R][4d] | [Adafruit 358][6m] | |
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| 1.3C | 240 | 240 | TFT | [ST7789][5d] | [Adafruit 4313][7m] | |
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| 1.5GS | 128 | 128 | OLED | [SSD1327][11d]| [Waveshare 13992][20m] | User contributed |
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| 2.0C | 320 | 240 | TFT | [ST7789][5d] | [Waveshare Pico LCD 2][18m]| For Pi Pico |
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| 1.54C | 240 | 240 | TFT | [ST7789][5d] | [Adafruit 3787][8m] | |
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| 1.14C | 240 | 135 | TFT | [ST7789][5d] | [T-Display][9m] | ESP32 with attached display |
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@ -86,6 +87,7 @@ simple. See [this doc](./DRIVERS.md#7-writing-device-drivers) for details.
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[8d]: https://github.com/peterhinch/micropython-nano-gui/blob/master/DRIVERS.md#52-waveshare-eink-display-hat
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[9d]: https://github.com/peterhinch/micropython-nano-gui/blob/master/DRIVERS.md#4-drivers-for-sharp-displays
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[10d]: https://github.com/peterhinch/micropython-nano-gui/blob/master/DRIVERS.md#53-waveshare-400x300-pi-pico-display
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[11d]:
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[1m]: https://www.adafruit.com/product/684
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[2m]: https://www.adafruit.com/product/1673
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@ -106,3 +108,4 @@ simple. See [this doc](./DRIVERS.md#7-writing-device-drivers) for details.
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[17m]: https://www.adafruit.com/product/3502
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[18m]: https://www.waveshare.com/wiki/Pico-LCD-2
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[19m]: https://thepihut.com/collections/epaper-displays-for-raspberry-pi/products/4-2-e-paper-display-module-for-raspberry-pi-pico-black-white-400x300
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[20m]: https://www.waveshare.com/product/ai/displays/oled/1.5inch-oled-module.htm?___SID=U
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@ -0,0 +1,192 @@
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"""
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MicroPython SSD1327 OLED I2C driver
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Adapted for CWriter, nano-gui and micro-gui from
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https://github.com/mcauser/micropython-ssd1327
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by @mcauser (Mike Causer) and @Treadbrook (Philip Adamson).
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MIT License
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Copyright (c) 2022 Mike Causer
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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"""
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__version__ = '1.1.2'
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from micropython import const
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from framebuf import FrameBuffer, GS4_HMSB
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from boolpalette import BoolPalette
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# commands
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SET_COL_ADDR = const(0x15)
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SET_SCROLL_DEACTIVATE = const(0x2E)
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SET_ROW_ADDR = const(0x75)
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SET_CONTRAST = const(0x81)
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SET_SEG_REMAP = const(0xA0)
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SET_DISP_START_LINE = const(0xA1)
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SET_DISP_OFFSET = const(0xA2)
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SET_DISP_MODE = const(0xA4) # 0xA4 normal, 0xA5 all on, 0xA6 all off, 0xA7 when inverted
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SET_MUX_RATIO = const(0xA8)
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SET_FN_SELECT_A = const(0xAB)
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SET_DISP = const(0xAE) # 0xAE power off, 0xAF power on
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SET_PHASE_LEN = const(0xB1)
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SET_DISP_CLK_DIV = const(0xB3)
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SET_SECOND_PRECHARGE = const(0xB6)
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SET_GRAYSCALE_TABLE = const(0xB8)
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SET_GRAYSCALE_LINEAR = const(0xB9)
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SET_PRECHARGE = const(0xBC)
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SET_VCOM_DESEL = const(0xBE)
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SET_FN_SELECT_B = const(0xD5)
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SET_COMMAND_LOCK = const(0xFD)
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# registers
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REG_CMD = const(0x80)
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REG_DATA = const(0x40)
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class SSD1327(FrameBuffer):
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lut = bytearray(32)
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def __init__(self, width=128, height=128):
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self.width = width
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self.height = height
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self.buffer = bytearray(self.width * self.height // 2)
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mode = GS4_HMSB
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self.palette = BoolPalette(mode)
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super().__init__(self.buffer, 128, 128, GS4_HMSB)
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self.col_addr = ((128 - self.width) // 4, 63 - ((128 - self.width) // 4))
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# 96x96 (8, 55)
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# 128x128 (0, 63)
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self.row_addr = (0, self.height - 1)
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# 96x96 (0, 95)
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# 128x128 (0, 127)
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self.offset = 128 - self.height
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# 96x96 32
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# 128x128 0
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self.poweron()
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self.init_display()
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def init_display(self):
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for cmd in (
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SET_COMMAND_LOCK, 0x12, # Unlock
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SET_DISP, # Display off
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# Resolution and layout
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SET_DISP_START_LINE, 0x00,
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SET_DISP_OFFSET, self.offset, # Set vertical offset by COM from 0~127
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# Set re-map
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# Enable column address re-map
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# Disable nibble re-map
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# Horizontal address increment
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# Enable COM re-map
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# Enable COM split odd even
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SET_SEG_REMAP, 0x51,
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SET_MUX_RATIO, self.height - 1,
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# Timing and driving scheme
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SET_FN_SELECT_A, 0x01, # Enable internal VDD regulator
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SET_PHASE_LEN, 0x51, # Phase 1: 1 DCLK, Phase 2: 5 DCLKs
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SET_DISP_CLK_DIV, 0x01, # Divide ratio: 1, Oscillator Frequency: 0
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SET_PRECHARGE, 0x08, # Set pre-charge voltage level: VCOMH
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SET_VCOM_DESEL, 0x07, # Set VCOMH COM deselect voltage level: 0.86*Vcc
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SET_SECOND_PRECHARGE, 0x01, # Second Pre-charge period: 1 DCLK
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SET_FN_SELECT_B, 0x62, # Enable enternal VSL, Enable second precharge
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# Display
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SET_GRAYSCALE_LINEAR, # Use linear greyscale lookup table
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SET_CONTRAST, 0x7f, # Medium brightness
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SET_DISP_MODE, # Normal, not inverted
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SET_COL_ADDR, self.col_addr[0], self.col_addr[1],
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SET_ROW_ADDR, self.row_addr[0], self.row_addr[1],
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SET_SCROLL_DEACTIVATE,
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SET_DISP | 0x01): # Display on
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self.write_cmd(cmd)
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self.fill(0)
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self.write_data(self.buffer)
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def poweroff(self):
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self.write_cmd(SET_FN_SELECT_A)
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self.write_cmd(0x00) # Disable internal VDD regulator, to save power
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self.write_cmd(SET_DISP)
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def poweron(self):
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self.write_cmd(SET_FN_SELECT_A)
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self.write_cmd(0x01) # Enable internal VDD regulator
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self.write_cmd(SET_DISP | 0x01)
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def contrast(self, contrast):
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self.write_cmd(SET_CONTRAST)
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self.write_cmd(contrast) # 0-255
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def rotate(self, rotate):
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self.poweroff()
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self.write_cmd(SET_DISP_OFFSET)
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self.write_cmd(self.height if rotate else self.offset)
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self.write_cmd(SET_SEG_REMAP)
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self.write_cmd(0x42 if rotate else 0x51)
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self.poweron()
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def invert(self, invert):
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self.write_cmd(SET_DISP_MODE | (invert & 1) << 1 | (invert & 1)) # 0xA4=Normal, 0xA7=Inverted
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def show(self):
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self.write_cmd(SET_COL_ADDR)
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self.write_cmd(self.col_addr[0])
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self.write_cmd(self.col_addr[1])
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self.write_cmd(SET_ROW_ADDR)
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self.write_cmd(self.row_addr[0])
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self.write_cmd(self.row_addr[1])
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self.write_data(self.buffer)
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def write_cmd(self):
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raise NotImplementedError
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def write_data(self):
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raise NotImplementedError
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class SSD1327_I2C(SSD1327):
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def __init__(self, width, height, i2c, addr=0x3c):
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self.i2c = i2c
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self.addr = addr
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self.cmd_arr = bytearray([REG_CMD, 0]) # Co=1, D/C#=0
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self.data_list = [bytes((REG_DATA,)), None]
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super().__init__(width, height)
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def write_cmd(self, cmd):
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self.cmd_arr[1] = cmd
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self.i2c.writeto(self.addr, self.cmd_arr)
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def write_data(self, data_buf):
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self.data_list[1] = data_buf
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self.i2c.writevto(self.addr, self.data_list)
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class SEEED_OLED_96X96(SSD1327_I2C):
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def __init__(self, i2c):
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super().__init__(96, 96, i2c)
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def lookup(self, table):
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# GS0 has no pre-charge and current drive
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self.write_cmd(SET_GRAYSCALE_TABLE)
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for i in range(0,15):
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self.write_cmd(table[i])
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class WS_OLED_128X128(SSD1327_I2C):
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def __init__(self, i2c, addr=0x3c):
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super().__init__(128, 128, i2c, addr)
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