raspberrypi-pico 项目 | 吃豆小游戏
raspberrypi-pico | 吃豆小游戏
准备材料
- raspberrypi-pico *1
- 0.96寸oled *1
- 按钮 *4
- 导线 *n
接线
| 硬件 | 树莓派pico接口 |
|---|---|
| button_left | gpio28,GND |
| button_down | gpio27,GND |
| button_right | gpio26,GND |
| button_up | gpio22,GND |
| OLED_VCC | 3V3或5V |
| OLED_GND | GND |
| OLED_SDA | gpio20 |
| OLED_SCL | gpio21 |
代码
ssd1306库
文件ssd1306.py
# MicroPython SSD1306 OLED driver, I2C and SPI interfaces
from micropython import const
import framebuf
# register definitions
SET_CONTRAST = const(0x81)
SET_ENTIRE_ON = const(0xA4)
SET_NORM_INV = const(0xA6)
SET_DISP = const(0xAE)
SET_MEM_ADDR = const(0x20)
SET_COL_ADDR = const(0x21)
SET_PAGE_ADDR = const(0x22)
SET_DISP_START_LINE = const(0x40)
SET_SEG_REMAP = const(0xA0)
SET_MUX_RATIO = const(0xA8)
SET_COM_OUT_DIR = const(0xC0)
SET_DISP_OFFSET = const(0xD3)
SET_COM_PIN_CFG = const(0xDA)
SET_DISP_CLK_DIV = const(0xD5)
SET_PRECHARGE = const(0xD9)
SET_VCOM_DESEL = const(0xDB)
SET_CHARGE_PUMP = const(0x8D)
# Subclassing FrameBuffer provides support for graphics primitives
# http://docs.micropython.org/en/latest/pyboard/library/framebuf.html
class SSD1306(framebuf.FrameBuffer):
def __init__(self, width, height, external_vcc):
self.width = width
self.height = height
self.external_vcc = external_vcc
self.pages = self.height // 8
self.buffer = bytearray(self.pages * self.width)
super().__init__(self.buffer, self.width, self.height, framebuf.MONO_VLSB)
self.init_display()
def init_display(self):
for cmd in (
SET_DISP | 0x00, # off
# address setting
SET_MEM_ADDR,
0x00, # horizontal
# resolution and layout
SET_DISP_START_LINE | 0x00,
SET_SEG_REMAP | 0x01, # column addr 127 mapped to SEG0
SET_MUX_RATIO,
self.height - 1,
SET_COM_OUT_DIR | 0x08, # scan from COM[N] to COM0
SET_DISP_OFFSET,
0x00,
SET_COM_PIN_CFG,
0x02 if self.width > 2 * self.height else 0x12,
# timing and driving scheme
SET_DISP_CLK_DIV,
0x80,
SET_PRECHARGE,
0x22 if self.external_vcc else 0xF1,
SET_VCOM_DESEL,
0x30, # 0.83*Vcc
# display
SET_CONTRAST,
0xFF, # maximum
SET_ENTIRE_ON, # output follows RAM contents
SET_NORM_INV, # not inverted
# charge pump
SET_CHARGE_PUMP,
0x10 if self.external_vcc else 0x14,
SET_DISP | 0x01,
): # on
self.write_cmd(cmd)
self.fill(0)
self.show()
def poweroff(self):
self.write_cmd(SET_DISP | 0x00)
def poweron(self):
self.write_cmd(SET_DISP | 0x01)
def contrast(self, contrast):
self.write_cmd(SET_CONTRAST)
self.write_cmd(contrast)
def invert(self, invert):
self.write_cmd(SET_NORM_INV | (invert & 1))
def show(self):
x0 = 0
x1 = self.width - 1
if self.width == 64:
# displays with width of 64 pixels are shifted by 32
x0 += 32
x1 += 32
self.write_cmd(SET_COL_ADDR)
self.write_cmd(x0)
self.write_cmd(x1)
self.write_cmd(SET_PAGE_ADDR)
self.write_cmd(0)
self.write_cmd(self.pages - 1)
self.write_data(self.buffer)
class SSD1306_I2C(SSD1306):
def __init__(self, width, height, i2c, addr=0x3C, external_vcc=False):
self.i2c = i2c
self.addr = addr
self.temp = bytearray(2)
self.write_list = [b"\x40", None] # Co=0, D/C#=1
super().__init__(width, height, external_vcc)
def write_cmd(self, cmd):
self.temp[0] = 0x80 # Co=1, D/C#=0
self.temp[1] = cmd
self.i2c.writeto(self.addr, self.temp)
def write_data(self, buf):
self.write_list[1] = buf
self.i2c.writevto(self.addr, self.write_list)
class SSD1306_SPI(SSD1306):
def __init__(self, width, height, spi, dc, res, cs, external_vcc=False):
self.rate = 10 * 1024 * 1024
dc.init(dc.OUT, value=0)
res.init(res.OUT, value=0)
cs.init(cs.OUT, value=1)
self.spi = spi
self.dc = dc
self.res = res
self.cs = cs
import time
self.res(1)
time.sleep_ms(1)
self.res(0)
time.sleep_ms(10)
self.res(1)
super().__init__(width, height, external_vcc)
def write_cmd(self, cmd):
self.spi.init(baudrate=self.rate, polarity=0, phase=0)
self.cs(1)
self.dc(0)
self.cs(0)
self.spi.write(bytearray([cmd]))
self.cs(1)
def write_data(self, buf):
self.spi.init(baudrate=self.rate, polarity=0, phase=0)
self.cs(1)
self.dc(1)
self.cs(0)
self.spi.write(buf)
self.cs(1)
主程序
文件oled_game.py
'''
team：Beisent
official website：http://beisent.com
project name:oled_game
by CuO/氧均竭
'''
from machine import Pin,I2C
from ssd1306 import SSD1306_I2C
import utime
from random import randint
#import library
button_num = 28
button_left = Pin(button_num,Pin.IN,Pin.PULL_UP)
button_num = 27
button_down = Pin(button_num,Pin.IN,Pin.PULL_UP)
button_num = 26
button_right = Pin(button_num,Pin.IN,Pin.PULL_UP)
button_num = 22
button_up = Pin(button_num,Pin.IN,Pin.PULL_UP)
#set button group
i2c = I2C(0,sda=Pin(20),scl=Pin(21),freq=400000)
oled = SSD1306_I2C(128,64,i2c)
#set oled
score = 0
#initialize score
food_x,dot_x = randint(12,98),randint(12,98)
food_y,dot_y = randint(12,54),randint(12,54)
#random generation food,dot
def initialize():
global dot_x,dot_y,food_x,food_y
oled.fill(0)
oled.text("by beisent",49,56,1)
oled.text(f"score:{score}",10,1,1)
oled.text("v0.2",10,56,1)
oled.vline(10,10,44,1)
oled.hline(10,10,100,1)
oled.hline(10,54,100,1)
oled.vline(110,10,45,1)
oled.pixel(food_x,food_y,1)
oled.pixel(dot_x,dot_y,1)
oled.show()
#initialize function
def move(shift):
global dot_x,dot_y
if shift == 1:
initialize()
dot_x -= 1
oled.pixel(dot_x,dot_y,1)
oled.show()
elif shift == 2:
initialize()
dot_y += 1
oled.pixel(dot_x,dot_y,1)
oled.show()
elif shift == 3:
initialize()
dot_x += 1
oled.pixel(dot_x,dot_y,1)
oled.show()
elif shift == 5:
initialize()
dot_y -= 1
oled.pixel(dot_x,dot_y,1)
oled.show()
#mobility control
initialize()
oled.pixel(food_x,food_y,1)
oled.pixel(dot_x,dot_y,1)
oled.show()
while True:
if dot_x == food_x and dot_y == food_y:
#Determine whether or not to score
food_x= randint(12,98)
food_y= randint(12,54)
score += 1
initialize()
oled.text(f"score:{score}",10,1,1)
oled.show()
if(button_left.value() == 0):
#Check whether the left button is pressed
utime.sleep(0.03)
if(button_left.value()==0):
print("button_left is pressed")
move(1)
elif(button_up.value() == 0):
#Check whether the up button is pressed
utime.sleep(0.03)
if(button_up.value()==0):
print("button_up is pressed")
move(5)
elif(button_down.value() == 0):
#Check whether the down button is pressed
utime.sleep(0.03)
if(button_down.value()==0):
print("button_down is pressed")
move(2)
elif(button_right.value() == 0):
#Check whether the right button is pressed
utime.sleep(0.03)
if(button_right.value()==0):
print("button_right is pressed")
move(3)
将2个文件都上传到树莓派pico
