# reference: https://www.waveshare.com/wiki/E-Paper_ESP32_Driver_Board#Resources
import epaper
from machine import SPI, Pin
# baudrate = int(20e6)
baudrate = int(20e6)
# Software SPI
# We use specific values below are they match the default hardware SPI pins
# Although hardware SPI works, I had however better perf and less troubles with software SPI.
# Comment the line below is you want to use hardware SPI
# MOSI -> Master Out Slave In
# MISO -> Master In Slave Out
# RX2 = 16
# TX2 = 17
spi = SPI(-1, baudrate=baudrate, polarity=0, phase=0, sck=Pin(18), mosi=Pin(23), miso=Pin(14))
cs = Pin(5)
dc = Pin(17)
rst = Pin(16)
busy = Pin(4)
idle = Pin(0)
e = epaper.EPD(spi, cs, dc, rst, busy)
e.init()
w = 128
h = 296
x = 0
y = 0
# --------------------
print("# write hello world with black bg and white text")
from image_dark import hello_world_dark
e.clear_frame_memory(b'\xFF')
e.set_frame_memory(hello_world_dark, x, y, w, h)
e.display_frame()
# --------------------
# print("# write hello world with white bg and black text")
# from image_light import hello_world_light
# e.clear_frame_memory(b'\xFF')
# e.set_frame_memory(hello_world_light, x, y, w, h)
# e.display_frame()
# # --------------------
# print("# clear display")
# e.clear_frame_memory(b'\xFF')
# e.display_frame()
# print("# use a frame buffer")
# # 128 * 296 / 8 = 4736 - thats a lot of pixels
# import framebuf
# buf = bytearray(128 * 296 // 8)
# fb = framebuf.FrameBuffer(buf, 128, 296, framebuf.MONO_HLSB)
# black = 0
# white = 1
# fb.fill(white)
# fb.text('Hello World',30,0,black)
# fb.pixel(30, 10, black)
# fb.hline(30, 30, 10, black)
# fb.vline(30, 50, 10, black)
# fb.line(30, 70, 40, 80, black)
# fb.rect(30, 90, 10, 10, black)
# fb.fill_rect(30, 110, 10, 10, black)
# for row in range(0,37):
# fb.text(str(row),0,row*8,black)
# fb.text('Line 36',0,288,black)
# e.set_frame_memory(buf, x, y, w, h)
# e.display_frame()
# # --------------------
# print("# wrap text inside a box")
# import framebuf
# buf = bytearray(128 * 296 // 8)
# fb = framebuf.FrameBuffer(buf, 128, 296, framebuf.MONO_HLSB)
# black = 0
# white = 1
# # clear
# fb.fill(white)
# e.set_frame_memory(buf, x, y, w, h)
# e.display_frame()
# print("# display as much as this as fits in the box")
# str = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam vel neque in elit tristique vulputate at et dui. Maecenas nec felis lectus. Pellentesque sit amet facilisis dui. Maecenas ac arcu euismod, tempor massa quis, ultricies est.'
# print("# this could be useful as a new method in FrameBuffer")
# def text_wrap(str,x,y,color,w,h,border=None):
# # optional box border
# if border is not None:
# fb.rect(x, y, w, h, border)
# cols = w // 8
# # for each row
# j = 0
# for i in range(0, len(str), cols):
# # draw as many chars fit on the line
# fb.text(str[i:i+cols], x, y + j, color)
# j += 8
# # dont overflow text outside the box
# if j >= h:
# break
# print("# clear")
# fb.fill(white)
# print("# draw text box 1")
# # box position and dimensions
# bx = 8
# by = 8
# bw = w - 16 # 112 = 14 cols
# bh = w - 16 # 112 = 14 rows (196 chars in total)
# text_wrap(str,bx,by,black,bw,bh,black)
# e.set_frame_memory(buf, x, y, w, h)
# e.display_frame()
# print("# draw text box 2")
# bx = 0
# by = 128
# bw = w # 128 = 16 cols
# bh = 6 * 8 # 48 = 6 rows (96 chars in total)
# text_wrap(str,bx,by,black,bw,bh,black)
# e.set_frame_memory(buf, x, y, w, h)
# e.display_frame()
# print("# draw text box 3")
# bx = 0
# by = 184
# bw = w//2 # 64 = 8 cols
# bh = 8 * 8 # 64 = 8 rows (64 chars in total)
# text_wrap(str,bx,by,black,bw,bh,None)
# e.set_frame_memory(buf, x, y, w, h)
# e.display_frame()
# --------------------Loading
epaper-2in9
epaper-2in9