# Change mode to relative (default is absolute)
# You can use setAbsolute() to change back to absolute
# Absolute: the position starts at zero and is incremented or
# decremented by the encoder's movement
# Relative: the position is reset when the unit timer overflows.
myEncoder.setAbsolute()
# Read the current mode (0: absolute, 1: relative)
# Mode can also be set as a property
mode = myEncoder.mode
# Get the current frequency of update in Hz
freq = myEncoder.frequency
# Set the update frequency to 1 kHz
myEncoder.frequency = 1000
# Check if the channel is enabled
# The 'enabled' property is read-only
# Use the enable() and disable() methods to
# safely enable or disable the module
isEnabled = myEncoder.enabled
myEncoder.enable()
while True:
print(str(myEncoder.position))
time.sleep(0.3)
# Disable the eQEP channel
myEncoder.disable()
bus = smbus.SMBus(2) # select i2c bus 2
matrix = 0x70 # define matrix address on i2c bus
# --------------------MATRIX SETUP--------------------
bus.write_byte_data(matrix, 0x21, 0) # Start oscillator (p10)
bus.write_byte_data(matrix, 0x81, 0) # Disp on, blink off (p11)
bus.write_byte_data(matrix, 0xe7, 0) # Full brightness (page 15)
SW = ["P8_11", "P8_12", "P8_33",
"P8_35"] # define switches by their header pin
# set up left/right rotary encoder & refresh at 1000kHz
lrEncoder = RotaryEncoder(eQEP2)
lrEncoder.zero()
lrEncoder.setAbsolute()
lrEncoder.frequency = 1000
lrEncoder.enable()
# set up up/down rotary encoder
udEncoder = RotaryEncoder(eQEP1)
udEncoder.zero()
udEncoder.setAbsolute()
udEncoder.frequency = 1000
udEncoder.enable()
def main():
print("Welcome to etch a sketch!")
print("")
print("8x8 LED edition")
xdim = 8