October 2017
Buggy from Mikroe
Sensehat
from sense_hat import SenseHAT
sense = SenseHAT()
sense.set_rotation(180)
message = "Raspberry Pi SIG"
yellow = [255,255,0]
red = [255, 0, 0]
speed = 0.1
while True:
sense.show_message(text_string=message, scroll_speed=speed, text_color=yellow, back_color=red)
Python
print("hello")
print(type("hello"))
print(dir("hello"))
print("hello".upper())
import builtins
print(builtins)
dir(builtins)
Micropython for ESP8266
I2C in NodeRED/python/command line
Tested using a 16-bit I/O expander MCP23017
NodeRED
Install node-red-contrib-i2c using ‘Manage Palette’
Python
from smbus import SMBus
bus = SMBus(1)
bus.write_data_byte(0x20, 0x14, 0xff)
bus.read_data_byte()
bus.write_data_byte(0x20, 0x14, 0x00)
bus.read_data_byte()