boochow

from machine import I2C
i2c=I2C(1)
i2c.init(freq=1000000)
oled = SSD1306_I2C(128, 64, i2c)
console = FBConsole(oled)
os.dupterm(console)

boochow

import uio

class FBConsole(uio.IOBase):
    def __init__(self, framebuf, bgcolor=0, fgcolor=-1, width=-1, height=-1):
        self.fb = framebuf
        if width > 0:
            self.width=width
        else:
            try:
                self.width=framebuf.width

boochow

# stm32 version of wiznet_connect.py
import network
nic = network.Ethernet()
while not nic.isconnected():
    pass
nic.active(True)
nic.ifconfig('dhcp')
print(nic.ifconfig())
import socket
print(socket.getaddrinfo('micropython.org', 80))

boochow

class MCP3204:
    def __init__(self, spi, cs):
        self.spi = spi
        self.cs = cs

    def read(self, ch):
        cmd = 6 | (ch >> 2)
        par = (ch << 6) & 0xff
        send = bytearray([cmd, par, 0])
        recv = bytearray(3)

boochow

from machine import Pin, SPI
spi = SPI(0)
dc = Pin(27,Pin.OUT)
res = Pin(22,Pin.OUT)
cs = Pin(17,Pin.OUT)
d = SSD1306_SPI(128,64,spi,dc,res,cs)
d.text("SPI OK", 0, 0)
d.show()

boochow

import machine
sd = machine.SD()

import os
os.mount(sd, '/sd')
os.chdir('sd')

boochow

from machine import Timer,I2C

i2c = I2C(1)
i2c.init()

d = SSD1306_I2C(128,64,i2c)
c = DS3231(i2c)
c.write([2018, 5, 30, 23, 30, 45, 3])

day = ['Sun','Mon','Tue','Wed','Thu','Fri','Sat']

boochow

def decimal2num(b):
    return ((b & 0xf) + 10 * (b >> 4))

def num2decimal(d):
    return (d % 10) | (d // 10) << 4

def hour_value(b):
    result = decimal2num(b & 0x1f)
    if (b & 0x20):
        result += 12

boochow

    def write_data(self, buf):
        self.i2c.writeto(self.addr, bytearray([0x40]), False)
        self.i2c.writeto(self.addr, buf)

boochow

    def write_data(self, buf):
        self.temp[0] = self.addr << 1
        self.temp[1] = 0x40 # Co=0, D/C#=1                                      
        self.i2c.start()
        self.i2c.write(self.temp)
        self.i2c.write(buf)
        self.i2c.stop()