def setup():
"""Set up the backlight on GFX HAT"""
global _sn3218
import sn3218 as _sn3218
_sn3218.enable()
_sn3218.enable_leds(0b111111111111111111)
_sn3218.output(_buf)
def setup():
global automation_hat, automation_phat, sn3218, _ads1015, _is_setup, _t_update_lights
if _is_setup:
return True
_is_setup = True
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
try:
import smbus
except ImportError:
if version_info[0] < 3:
raise ImportError(
"This library requires python-smbus\nInstall with: sudo apt install python-smbus"
)
elif version_info[0] == 3:
raise ImportError(
"This library requires python3-smbus\nInstall with: sudo apt install python3-smbus"
)
_ads1015 = ads1015(smbus.SMBus(1))
if _ads1015.available() is False:
raise RuntimeError("No ADC detected, check your connections")
try:
import sn3218
except ImportError:
raise ImportError(
"This library requires sn3218\nInstall with: sudo pip install sn3218"
)
except IOError:
pass
if sn3218 is not None:
sn3218.enable()
sn3218.enable_leds(0b111111111111111111)
automation_hat = True
automation_phat = False
_t_update_lights = AsyncWorker(_update_lights)
_t_update_lights.start()
atexit.register(_exit)
def setup():
global _is_setup, sn3218
if _is_setup:
return True
try:
import sn3218
except ImportError:
raise ImportError(
"This library requires the sn3218 module\nInstall with: sudo pip install sn3218"
)
sn3218.enable()
sn3218.enable_leds(0b111111111111111111)
atexit.register(_exit)
_is_setup = True
def off():
"""
Turns off the backlight.
"""
rgb(0, 0, 0)
def update():
"""
Update backlight with changes to the LED buffer
"""
sn3218.output(leds)
# set gamma correction for backlight to normalise brightness
g_channel_gamma = [int(value / 1.6) for value in sn3218.default_gamma_table]
sn3218.channel_gamma(1, g_channel_gamma)
sn3218.channel_gamma(4, g_channel_gamma)
sn3218.channel_gamma(7, g_channel_gamma)
r_channel_gamma = [int(value / 1.4) for value in sn3218.default_gamma_table]
sn3218.channel_gamma(0, r_channel_gamma)
sn3218.channel_gamma(3, r_channel_gamma)
sn3218.channel_gamma(6, r_channel_gamma)
w_channel_gamma = [int(value / 24) for value in sn3218.default_gamma_table]
for i in range(9, 18):
sn3218.channel_gamma(i, w_channel_gamma)
sn3218.enable()
# set gamma correction for backlight to normalise brightness
g_channel_gamma = [int(value / 1.6) for value in sn3218.default_gamma_table]
sn3218.channel_gamma(1, g_channel_gamma)
sn3218.channel_gamma(4, g_channel_gamma)
sn3218.channel_gamma(7, g_channel_gamma)
r_channel_gamma = [int(value / 1.4) for value in sn3218.default_gamma_table]
sn3218.channel_gamma(0, r_channel_gamma)
sn3218.channel_gamma(3, r_channel_gamma)
sn3218.channel_gamma(6, r_channel_gamma)
w_channel_gamma = [int(value / 24) for value in sn3218.default_gamma_table]
for i in range(9, 18):
sn3218.channel_gamma(i, w_channel_gamma)
sn3218.enable()
def use_rbg():
"""
Swaps the Green and Blue channels on the LED backlight
Use if you have a first batch Display-o-Tron 3K
"""
global LED_R_G, LED_R_B
global LED_M_G, LED_M_B
global LED_L_G, LED_L_B
(LED_R_G, LED_R_B) = (LED_R_B, LED_R_G)
(LED_M_G, LED_M_B) = (LED_M_B, LED_M_G)
(LED_L_G, LED_L_B) = (LED_L_B, LED_L_G)
enable_mask = 0b100000010001000000
elif action_level == 3 and one == 0 and two == 1 and three == 1:
enable_mask = 0b100000010100000000
elif action_level == 3 and one == 1 and two == 1 and three == 1:
enable_mask = 0b100000010101000000
elif action_level == 3 and one == 0 and two == 0 and three == 0:
enable_mask = 0b000000000000000000
# Enable/Disable LEDs
enable_leds(enable_mask)
output([int((math.sin(float(416) / 64.0) + 1.0) * 128.0)] * 18)
# Enable GPIO and sn3218 access
pi = pigpio.pi()
enable()
enable_mask = 0b000000000000000000
# If the GPIO connection fails, exit the script
if not pi.connected:
exit()
# Enable/Disable LEDs
action_leds(1, pi.read(13), pi.read(19), pi.read(16))
# Read the commandline arguments
allArguments = sys.argv
# Further arguments
argumentList = allArguments[1:]
def test_disable_enable(self):
"""Enable / disable operations"""
sn3218.disable()
delay()
sn3218.enable()
delay()
def setUp(self):
"""Reset chip for each test"""
sn3218.reset()
sn3218.enable()
sn3218.enable_leds(0b111111111111111111)
