Micropython class for PCF8814 display (nokia 1100)

PCF8814.py

import time
import font

class PCF8814:	
	pixel_width = 96
	pixel_height = 65
	
	def __init__(self, ss, rst, sck, mosi):
		self.ss = ss
		self.rst = rst
		self.sck = sck
		self.mosi = mosi
	
		self.rst.off()
		time.sleep_ms(10)
		self.rst.on()
		
		self.soft_reset()

		#self.contrast(0x7F)
		self.all_on(False)
		self.pump(True)
		self.power(True)
		
		for j in range(self.pixel_width/8+1):
			for i in range(self.pixel_width):
				self.send_data(0x00, cmd=False)
		self.goto(0,0)
	
	def send_string(self, string):
		for c in string:
			index = ord(c)
			if index <= 0x7E and index >= 0x20:
				char = font.font8x6[index - 0x20]
				for l in char:
					self.send_data(l, cmd=False)
		
	def send_data(self, data, cmd):
		self.ss.off()
		
		self.sck.off()
		if cmd == True:
			self.mosi.off()
		else:
			self.mosi.on()
		self.sck.on()
	
		mask = 0x80
		while mask != 0:
			self.sck.off()
			if data & mask:
				self.mosi.on()
			else:
				self.mosi.off()
			self.sck.on()
			mask = mask >> 1
		
		self.ss.on()
		
	def clear(self):
		for i in range(self.pixel_width * self.pixel_height):
			self.send_data(0x00, cmd=False)
		self.goto_y(0)
		self.goto_x(0)
		
	def goto(self, x, y):
		self.goto_x(x)
		self.goto_y(y)
		

	############################################################
		
	def goto_x(self, value):
		self.send_data(0x00 | (value & 0x0F), True)
		self.send_data(0x10 | (value>>4), True)
		
	def pump(self, status):
		flag = 0x04 if status else 0x00
		self.send_data(0x28 | flag, True)
		
	def bias(self, value):
		self.send_data(0x28 | (value & 0x07), True)
		
	def pump_control(self, value):
		self.send_data(0x3D, True)
		self.send_data(value & 0x03, True)
		
	def init_displaly_line(self, value):
		self.send_data(0x40 | (value & 0x3F), True)
		
	def contrast(self,value):
		self.send_data(0x20 | (value >> 5), True)
		self.send_data(0x80 | (value & 0x1F), True)
		
	def all_on(self, status):
		flag = 0x01 if status else 0x00
		self.send_data(0xA4 | flag, True)
		
	def inversion(self, status):
		flag = 0x01 if status else 0x00
		self.send_data(0xA6 | flag, True)

	def power(self, status):
		flag = 0x01 if status else 0x00
		self.send_data(0xAE | flag, True)
		
	def data_order(self, status):
		flag = 0x01 if status else 0x00
		self.send_data(0xA8 | flag, True)
	
	def vertical_addresing(self, status):
		flag = 0x01 if status else 0x00
		self.send_data(0xAA | flag, True)
	
	def goto_y(self, value):
		self.send_data(0xB0 | (value & 0x0F), True)
		
	def vertical_mirror(self, status):
		flag = 0x08 if status else 0x00
		self.send_data(0xC0 | flag, True)
	
	def soft_reset(self):
		self.send_data(0xE2 | 0x00, True)
		
	def init_R0(self, value):
		self.send_data(0xAC, True)
		self.send_data(0x00 | (value & 0x07), True)