forked from Telos4/LoRa-Workshop
96 lines
3.3 KiB
Python
96 lines
3.3 KiB
Python
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# https://learn.adafruit.com/micropython-hardware-ssd1306-oled-display/software
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import time
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from machine import I2C, Pin
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from .ssd1306 import SSD1306_I2C
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class Display:
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def __init__(self,
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width = 128, height = 64,
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scl_pin_id = 15, sda_pin_id = 4,
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freq = 400000):
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self.width = width
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self.height = height
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self.poweron()
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self.i2c = I2C(scl = Pin(scl_pin_id, Pin.OUT),
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sda = Pin(sda_pin_id),
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freq = freq)
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self.display = SSD1306_I2C(width, height, self.i2c)
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self.show = self.display.show
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def poweron(self, pin=16):
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pin_reset = Pin(pin, mode=Pin.OUT)
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pin_reset.value(0)
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time.sleep_ms(50)
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pin_reset.value(1)
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def clear(self):
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self.display.fill(0)
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self.display.show()
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def show_text(self, text, x = 0, y = 0, clear_first = True, show_now = True, hold_seconds = 0):
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if clear_first: self.display.fill(0)
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self.display.text(text, x, y)
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if show_now:
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self.display.show()
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if hold_seconds > 0: time.sleep(hold_seconds)
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def wrap(self, text, start_line = 0,
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height_per_line = 8, width_per_char = 8,
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start_pixel_each_line = 0):
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chars_per_line = self.width//width_per_char
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max_lines = self.height//height_per_line - start_line
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lines = [(text[chars_per_line*line: chars_per_line*(line+1)], start_pixel_each_line, height_per_line*(line+start_line))
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for line in range(max_lines)]
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return lines
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def draw_logo(self, x_pos=0):
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font_height = 50
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min_x = x_pos
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min_y = 10
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self.display.fill(0)
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self.display.fill_rect(min_x, min_y + font_height//2, 5, font_height//2, 1)
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self.display.fill_rect(min_x, min_y + font_height//4, 5, 5, 1)
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xshift = 10
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self.display.rect(xshift + min_x, min_y, 5, font_height, 1)
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self.display.rect(xshift + min_x + 4, min_y, font_height//2, font_height//2, 1)
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self.display.line(xshift + min_x + 5, min_y + font_height//2, xshift + min_x + 5 + font_height//2, min_y + font_height, 1)
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self.display.show()
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def show_text_wrap(self, text,
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start_line = 0, height_per_line = 8, width_per_char = 8, start_pixel_each_line = 0,
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clear_first = True, show_now = True, hold_seconds = 0):
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if clear_first: self.clear()
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for line, x, y in self.wrap(text, start_line, height_per_line, width_per_char, start_pixel_each_line):
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self.show_text(line, x, y, clear_first = False, show_now = False)
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if show_now:
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self.display.show()
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if hold_seconds > 0: time.sleep(hold_seconds)
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def show_datetime(self, year, month, day, hour, minute, second):
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datetime = [year, month, day, hour, minute, second]
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datetime_str = ["{0:0>2}".format(d) for d in datetime]
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self.show_text(text = '-'.join(datetime_str[:3]),
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x = 0, y = 0, clear_first = True, show_now = False)
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self.show_text(text = ':'.join(datetime_str[3:6]),
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x = 0, y = 10, clear_first = False, show_now = True)
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def show_time(self, year, month, day, hour, minute, second):
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self.show_datetime(year, month, day, hour, minute, second)
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