195 lines
10 KiB
Python
195 lines
10 KiB
Python
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# Copyright 2026 PostalPortal LLC
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that
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# the following conditions are met:
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# 1. Redistributions of source code must retain
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# the above copyright notice, this list of conditions
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# and the following disclaimer.
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# 2. Redistributions in binary form must reproduce
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# the above copyright notice, this list of conditions
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# and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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# 3. Neither the name of the copyright holder
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# nor the names of its contributors may be used
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# to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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# CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES,
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# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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# GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
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# WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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# THE POSSIBILITY OF SUCH DAMAGE.
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#
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# This code displays device info on an attached screen.
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# Requires the ssd1306 module/package installed.
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# Connect to GPIO 0 and 1 for i2c
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#
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from machine import Pin, I2C
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from ssd1306 import SSD1306_I2C
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from time import sleep_ms
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import framebuf
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import math
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from config import *
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from scanmode import getCurrentModeStr, getModes, modeListIsSet, getPrevModeStr, getNextModeStr
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i2c = None
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oled = None
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if ENABLE_DISPLAY:
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i2c = I2C(DISPLAY_I2C_CONTROLLER, sda=Pin(DISPLAY_SDA_PIN), scl=Pin(DISPLAY_SCL_PIN), freq=400000)
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oled = SSD1306_I2C(DISPLAY_WIDTH, DISPLAY_HEIGHT, i2c)
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def bootDisplay():
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if ENABLE_DISPLAY:
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try:
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# Bootup dead pixel self-test
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oled.fill(0)
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oled.show()
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oled.fill(1)
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oled.show()
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sleep_ms(500)
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oled.fill(0)
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oled.show()
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# 128x32 PostalPoint logo bitmap
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logo = bytearray([
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0xc0, 0x40, 0x40, 0xc0, 0x80,
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0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0xfc, 0x0e, 0x0a, 0x1a, 0x13, 0xf1, 0x19, 0x08, 0x08, 0xfc, 0xfc, 0x0c, 0x08,
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0x19, 0xf1, 0xf1, 0x1b, 0x0a, 0x0e, 0xfc, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0xf8, 0xf8,
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0x1c, 0x1c, 0x1c, 0xf8, 0xf8, 0xf0, 0x00, 0x00, 0x80, 0xc0, 0xe0, 0xe0, 0xe0, 0xc0, 0xc0, 0x00,
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0x00, 0x00, 0xc0, 0xe0, 0xe0, 0xe0, 0xe0, 0xc0, 0x00, 0x00, 0x80, 0xf0, 0xf8, 0xf8, 0xe0, 0xe0,
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0x00, 0x00, 0x80, 0xc0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0x40, 0x00, 0x00, 0xf0, 0xfc, 0xfe, 0x0e,
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0x00, 0x00, 0xf0, 0xf8, 0xf8, 0x1c, 0x1c, 0x18, 0xf8, 0xf8, 0xf0, 0x00, 0x00, 0x80, 0xc0, 0xe0,
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0xe0, 0xe0, 0xc0, 0x80, 0x00, 0x00, 0x00, 0xc8, 0xfc, 0xfe, 0x0c, 0x00, 0xc0, 0xe0, 0xe0, 0xe0,
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0xe0, 0xe0, 0xc0, 0x00, 0x00, 0x00, 0xf0, 0xf8, 0xf8, 0xe0, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x7f, 0xc0, 0x80, 0x80, 0x80, 0x07, 0x0e, 0x0a, 0x1a, 0xf1, 0xf1, 0x1b, 0x0a,
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0x0e, 0x0f, 0x07, 0x80, 0x80, 0xc0, 0x7f, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x7f, 0x3f, 0x07,
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0x07, 0x07, 0x03, 0x03, 0x01, 0x00, 0x00, 0x1f, 0x3f, 0x7f, 0x70, 0x70, 0x38, 0x1f, 0x0f, 0x03,
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0x20, 0x71, 0x73, 0x77, 0x76, 0x3e, 0x3c, 0x08, 0x00, 0x18, 0x3f, 0x7f, 0x73, 0x70, 0x30, 0x00,
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0x0c, 0x3f, 0x7f, 0x73, 0x70, 0x30, 0x3f, 0x7f, 0x3f, 0x00, 0x00, 0x3f, 0x7f, 0x7f, 0x20, 0x00,
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0x70, 0x7f, 0x7f, 0x0f, 0x07, 0x07, 0x07, 0x03, 0x03, 0x01, 0x00, 0x0c, 0x3f, 0x3f, 0x73, 0x70,
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0x70, 0x3f, 0x1f, 0x0f, 0x00, 0x70, 0x7f, 0x3f, 0x0f, 0x00, 0x20, 0x7e, 0x7f, 0x1f, 0x01, 0x20,
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0x7f, 0x7f, 0x0f, 0x00, 0x00, 0x3f, 0x7f, 0x7f, 0x70, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x03, 0x02, 0x06, 0x07, 0x07, 0x06, 0x02,
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0x02, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00])
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fbuf = framebuf.FrameBuffer(logo, 128, 32, framebuf.MONO_VLSB)
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oled.blit(fbuf, 0, 0, 0)
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# Show info
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oled.text("Barcode Scanner", 0, 36, 1)
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firmVerStr = "FW Ver " + FIRMWARE_VERSION
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oled.text(f"{firmVerStr:^16}", 0, 56, 1)
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oled.show()
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sleep_ms(1500)
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mainDisplay()
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except:
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pass
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# Center a line of text on the screen (vertical and horizontal)
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# If arrows, display up and down arrows above / below the text.
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# If showNow, clears the display before drawing, and displays the text as well. Otherwise this function only renders the display.
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# If arrows, the aboveLine and belowLine text will be rendered, centered horizontally, above/below the arrows.
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def centerText(text, arrows=False, showNow = False, aboveLine = "", belowLine = ""):
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if ENABLE_DISPLAY:
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if showNow:
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oled.fill(0)
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textWidth = len(text) * CHAR_WIDTH
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vCenter = DISPLAY_HEIGHT // 2
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textY = ((DISPLAY_HEIGHT - CHAR_HEIGHT) // 2)
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oled.text(text, (DISPLAY_WIDTH - textWidth) // 2, textY, 1)
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if arrows:
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arrowLineXDistance = CHAR_WIDTH // 2
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arrowLineYDistance = CHAR_HEIGHT // 2
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topArrowPoint = vCenter - CHAR_HEIGHT - arrowLineYDistance
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bottomArrowPoint = vCenter + CHAR_HEIGHT + arrowLineYDistance
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xArrowCenterPoint = DISPLAY_WIDTH // 2
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topLineY = vCenter - CHAR_HEIGHT - (arrowLineYDistance // 2)
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bottomLineY = vCenter + CHAR_HEIGHT + (arrowLineYDistance // 2)
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oled.line(xArrowCenterPoint - arrowLineXDistance, topArrowPoint + arrowLineYDistance, xArrowCenterPoint, topArrowPoint, 1) # Left-top arrow part
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oled.line(xArrowCenterPoint + arrowLineXDistance, topArrowPoint + arrowLineYDistance, xArrowCenterPoint, topArrowPoint, 1) # Right-top arrow part
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oled.line(xArrowCenterPoint - arrowLineXDistance, bottomArrowPoint - arrowLineYDistance, xArrowCenterPoint, bottomArrowPoint, 1) # Left-bottom arrow part
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oled.line(xArrowCenterPoint + arrowLineXDistance, bottomArrowPoint - arrowLineYDistance, xArrowCenterPoint, bottomArrowPoint, 1) # Right-bottom arrow part
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# Horizontal lines above/below center text, with a gap in the middle for the arrows
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oled.line(0, topLineY, xArrowCenterPoint - (arrowLineXDistance * 2), topLineY, 1)
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oled.line(xArrowCenterPoint + (arrowLineXDistance * 2), topLineY, DISPLAY_WIDTH, topLineY, 1)
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oled.line(0, bottomLineY, xArrowCenterPoint - (arrowLineXDistance * 2), bottomLineY, 1)
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oled.line(xArrowCenterPoint + (arrowLineXDistance * 2), bottomLineY, DISPLAY_WIDTH, bottomLineY, 1)
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# Top and bottom text lines, outside the arrows and lines
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oled.text(aboveLine, (DISPLAY_WIDTH - 1 - (len(aboveLine) * CHAR_WIDTH)) // 2, 6, 1)
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oled.text(belowLine, (DISPLAY_WIDTH - 1 - (len(belowLine) * CHAR_WIDTH)) // 2, DISPLAY_HEIGHT - CHAR_HEIGHT - 6, 1)
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if showNow:
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oled.show()
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def mainDisplay(scanInProgress = False):
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if ENABLE_DISPLAY:
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try:
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oled.fill(0)
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if modeListIsSet():
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if modeListIsSet() and len(getModes()) > 1:
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centerText(getCurrentModeStr(), True, False, getPrevModeStr(), getNextModeStr())
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else:
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centerText(getCurrentModeStr(), False, False)
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if scanInProgress:
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# Outline around edge of display
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oled.line(0, 0, DISPLAY_WIDTH - 1, 0, 1)
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oled.line(0, 0, 0, DISPLAY_HEIGHT - 1, 1)
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oled.line(DISPLAY_WIDTH - 1, 0, DISPLAY_WIDTH - 1, DISPLAY_HEIGHT - 1, 1)
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oled.line(0, DISPLAY_HEIGHT - 1, DISPLAY_WIDTH - 1, DISPLAY_HEIGHT - 1, 1)
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oled.show()
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except:
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pass
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def iconDisplay(icon):
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# TODO: add code to render icons
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if icon == "ERR":
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pass
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elif icon == "OK":
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pass
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elif icon == "NAF":
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pass
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elif icon == "POW":
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bootDisplay()
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def clearDisplay(showMain = False):
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if ENABLE_DISPLAY:
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try:
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oled.fill(0)
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oled.show()
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if showMain:
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mainDisplay()
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except:
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pass
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def brightDisplay():
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if ENABLE_DISPLAY:
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try:
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oled.fill(1)
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oled.show()
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except:
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pass
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