boochow

from micropython import const
from machine import Pin, I2C
import time

CLEAR_DISPLAY       = const(0x01)
RETURN_HOME         = const(0x02)
SET_ENTRY_MODE      = const(0x04)
DISPLAY_ON          = const(0x0C)
FUNCTION_SET        = const(0x20)
OSC_FREQUENCY       = const(0x10)

boochow

from micropython import const
from machine import Pin, I2C
import time

CLEAR_DISPLAY       = const(0x01)
RETURN_HOME         = const(0x02)
SET_ENTRY_MODE      = const(0x04)
DISPLAY_ON          = const(0x0C)
FUNCTION_SET        = const(0x20)
OSC_FREQUENCY       = const(0x10)

boochow

from micropython import const
from ssd1306 import SSD1306_SPI

SET_LOW_COLUMN      = const(0x00)
SET_HIGH_COLUMN     = const(0x10)
SET_PAGE_ADDR       = const(0xb0)
SET_DISP_START_LINE = const(0x40)

class SH1106_SPI(SSD1306_SPI):
    def show(self):

boochow

def main():
    import network, socket
    from machine import Pin
    nic = network.WIZNET5K(pyb.SPI(2), Pin('PB12'), Pin('PC8'))
    addr = socket.getaddrinfo('towel.blinkenlights.nl', 23)[0][-1]
    s = socket.socket()
    s.connect(addr) 
    while True:
        data = s.recv(1500)
        print(data.decode('utf-8'), end='')

boochow

def main():
    import network, socket, ujson
    from machine import Pin
    nic = network.WIZNET5K(pyb.SPI(2), Pin('PB12'), Pin('PC8'))
    addr = socket.getaddrinfo('api.fixer.io',80)[0][-1]
    s = socket.socket()
    s.connect(addr) 
    s.send(bytes('GET /latest?base=USD&symbols=JPY HTTP/1.0\r\nHost: api.fixer.io\r\n\r\n', 'utf8'))
    result = s.recv(1000)
    s.close()

boochow

def main():
    import urequests
    r = urequests.get('http://api.fixer.io/latest?base=USD&symbols=JPY')
    j = r.json()
    print(j["date"])
    print("JPY/" + j["base"] + ": " + str(j["rates"]["JPY"]))

boochow

from ST7735 import TFT,TFTColor
from machine import SPI,Pin
spi = SPI(2, baudrate=20000000, polarity=0, phase=0, sck=Pin(14), mosi=Pin(13), miso=Pin(12))
tft=TFT(spi,16,17,18)
tft.initr()
tft.rgb(True)
tft.fill(TFT.BLACK)

minX = -2.0
maxX = 1.0

boochow

# Connect IO25 to DIN
import machine, neopixel, time

np = neopixel.NeoPixel(machine.Pin(25), 8)
for i in range(65):
  np[(i + 7) % 8] = (0,0,0)
  np[i % 8] = ((i * 4) % 64, (i * 8) % 64, (i * 16) % 64)
  np.write()
  time.sleep_ms(40)
  

boochow

def lan_connect(spi, cs, reset):
    import network
    nic = network.WIZNET5K(spi,cs,reset)
    while not nic.isconnected():
        pass
    nic.active(True)
    nic.ifconfig('dhcp')
    print('network config:', nic.ifconfig())
    
def main():

boochow

import binascii
id = binascii.unhexlify("330051001551343236363539")
hash = 0x811c9dc5
for b in id:
    hash = 16777619 * hash ^ b
print(hex(hash & 0x00ffffff))