Micropython TurnipBit LCD5110显示英文词句

本帖最后由 bodasister 于 2018-3-6 13:33 编辑

相信大家对Microbit这款开发板都是很熟悉的了，之前发过一些Micropython开发板做的小实验，大多数都用的TPYboard这款开发板。今天我们这个实验将使用一款全新的开发板Turnipbit，使用和Turnipbit异曲同工，更加适合青少年使用，更加方便简介。

准备工作

TurnipBit开发套件（板子+扩展板） 1套

Nokia LCD5110(PCD8544)显示屏 1块

面包板 1个

杜邦线若干

可接入互联网的电脑 1台（需要进入TurnipBit的在线编程器）

地址：http://turnipbit.com/PythonEditor/editor.html

实验步骤

1、参考的TPYBoard v102控制5110的实验和代码，进行相应的修改。链接如下：

http://docs.tpyboard.com/zh/latest/tpyboard/tutorial/v10x/script/

2、将TurnipBit开发板与扩展板对接起来，连接实物图如下：

扩展板的作用就是将TurnipBit开发板上所有的引脚进行了引出，同时还进行了分类，增加了3.3V、5V和GND的引脚，方便大家开发使用。

3、接下来将lcd5110显示屏与扩展板进行相应的连接。接线图如下：

LCD5110显示屏	TurnipBit扩展板
RST	P0
CE	P1
DC	P5
DIN	P14
CLK	P13
VCC	3.3V
BL	3.3V（常亮，也可接入其他引脚通过高低电平控制亮灭）
GND	GND

4、点击连接：http://turnipbit.com/PythonEditor/editor.html进入TurnipBit的在线编程器。录入一下代码：

#***********************
# - File Name:turnipbit_lcd5110.py
# - Author:山东萝卜电子科技有限公司
# - Date：2018年03月04日
# - Description:RST=>pin0,CE=>pin1,DC=>pin5,DIN=>pin14,CLK=>pin13
#*************************

from microbit import *

#ASCII 5x8
font = bytearray(b'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')

#reset
def reset():
pin0.write_digital(0)  # RST on
sleep(0.01)
pin0.write_digital(1)  # RST off

def lcd_write(dc,data):
pin5.write_digital(dc)#DC=0 select CMD  DC=1 select DATA
pin1.write_digital(0) #CE=0 open
spi.write(data)
pin1.write_digital(1) #CE=1 close

def lcd_init():
reset()
#初始化配置
data=bytearray(b'x21xC8x06x13x0Cx20x0C')
lcd_write(0,data)
#清屏
data = bytearray(504)
lcd_write(1,data)

#X 0-83
#Y 0-5
#光标位置指定位置显示字符
def lcd_postion(x,y):
val_x = bytearray()
val_x.append (0x80 + x)
lcd_write(0,val_x)
val_y = bytearray()
val_y.append (0x40 + y)
lcd_write(0,val_y)

def lcd_print_string(message,x,y):
lcd_postion(x,y)
data = bytearray()
for letter in message:
      i = (ord(letter) - 32)*5
      for b in range (0,5):
         data.append(font[i+b])
      data.append(0x00)
lcd_write(1, data)

spi.init(baudrate = 328125, sclk = pin13, mosi = pin14)
lcd_init()
lcd_print_string('I am TurnipBit',0,2)