Python board.SDA Examples
The following are 22
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Example #1
Source File: character_lcd.py From Adafruit_CircuitPython_CharLCD with MIT License | 6 votes |
def cursor(self): """True if cursor is visible. False to stop displaying the cursor. The following example shows the cursor after a displayed message: .. code-block:: python import time import board import busio import adafruit_character_lcd.character_lcd_i2c as character_lcd i2c = busio.I2C(board.SCL, board.SDA) lcd = character_lcd.Character_LCD_I2C(i2c, 16, 2) lcd.cursor = True lcd.message = "Cursor! " time.sleep(5) """ return self.displaycontrol & _LCD_CURSORON == _LCD_CURSORON
Example #2
Source File: log_si7021.py From Pigrow with GNU General Public License v3.0 | 6 votes |
def read_sensor(sensor): try: i2c = busio.I2C(board.SCL, board.SDA) sensor = adafruit_si7021.SI7021(i2c) temperature = sensor.temperature humidity = sensor.relative_humidity if humidity == None or temperature == None or humidity > 101: print("--problem reading sensor on GPIO:"+sensor_gpio+"--") return '-1','-1','-1' else: humidity = round(humidity,2) temperature = round(temperature, 2) logtime = datetime.datetime.now() return humidity, temperature, logtime except: print("--problem reading si7021") return '-1','-1','-1'
Example #3
Source File: i2c.py From Adafruit_Blinka with MIT License | 6 votes |
def test_read_value(self): """ Access all sensor values as per https://github.com/adafruit/Adafruit_CircuitPython_BNO055/blob/bdf6ada21e7552c242bc470d4d2619b480b4c574/examples/values.py Note I have not successfully run this test. Possibly a hardware issue with module I have. See https://forums.adafruit.com/viewtopic.php?f=60&t=131665 """ import board gc.collect() import adafruit_bno055 gc.collect() i2c = I2C(board.SCL, board.SDA) sensor = adafruit_bno055.BNO055(i2c) self.assertTrue(9 <= sensor.gravity <= 11) self.assertTrue(sensor.temperature != 0) self.assertTrue(sensor.acceleration != (0, 0, 0)) self.assertTrue(sensor.magnetometer != (0, 0, 0)) self.assertTrue(sensor.gyroscope != (0, 0, 0)) self.assertTrue(sensor.quaternion != (0, 0, 0, 0)) sensor.euler sensor.linear_acceleration
Example #4
Source File: character_lcd_rgb_i2c.py From Adafruit_CircuitPython_CharLCD with MIT License | 6 votes |
def select_button(self): """The select button on the RGB Character LCD I2C Shield or Pi plate. The following example prints "Select!" to the LCD when the select button is pressed: .. code-block:: python import board import busio from adafruit_character_lcd.character_lcd_rgb_i2c import Character_LCD_RGB_I2C i2c = busio.I2C(board.SCL, board.SDA) lcd = Character_LCD_RGB_I2C(i2c, 16, 2) while True: if lcd.select_button: lcd.message = "Select!" """ return not self._select_button.value
Example #5
Source File: character_lcd_rgb_i2c.py From Adafruit_CircuitPython_CharLCD with MIT License | 6 votes |
def right_button(self): """The right button on the RGB Character LCD I2C Shield or Pi plate. The following example prints "Right!" to the LCD when the right button is pressed: .. code-block:: python import board import busio from adafruit_character_lcd.character_lcd_rgb_i2c import Character_LCD_RGB_I2C i2c = busio.I2C(board.SCL, board.SDA) lcd = Character_LCD_RGB_I2C(i2c, 16, 2) while True: if lcd.right_button: lcd.message = "Right!" """ return not self._right_button.value
Example #6
Source File: character_lcd_rgb_i2c.py From Adafruit_CircuitPython_CharLCD with MIT License | 6 votes |
def down_button(self): """The down button on the RGB Character LCD I2C Shield or Pi plate. The following example prints "Down!" to the LCD when the down button is pressed: .. code-block:: python import board import busio from adafruit_character_lcd.character_lcd_rgb_i2c import Character_LCD_RGB_I2C i2c = busio.I2C(board.SCL, board.SDA) lcd = Character_LCD_RGB_I2C(i2c, 16, 2) while True: if lcd.down_button: lcd.message = "Down!" """ return not self._down_button.value
Example #7
Source File: character_lcd_rgb_i2c.py From Adafruit_CircuitPython_CharLCD with MIT License | 6 votes |
def left_button(self): """The left button on the RGB Character LCD I2C Shield or Pi plate. The following example prints "Left!" to the LCD when the left button is pressed: .. code-block:: python import board import busio from adafruit_character_lcd.character_lcd_rgb_i2c import Character_LCD_RGB_I2C i2c = busio.I2C(board.SCL, board.SDA) lcd = Character_LCD_RGB_I2C(i2c, 16, 2) while True: if lcd.left_button: lcd.message = "Left!" """ return not self._left_button.value
Example #8
Source File: character_lcd.py From Adafruit_CircuitPython_CharLCD with MIT License | 6 votes |
def text_direction(self): """The direction the text is displayed. To display the text left to right beginning on the left side of the LCD, set ``text_direction = LEFT_TO_RIGHT``. To display the text right to left beginning on the right size of the LCD, set ``text_direction = RIGHT_TO_LEFT``. Text defaults to displaying from left to right. The following example displays "Hello, world!" from right to left. .. code-block:: python import time import board import busio import adafruit_character_lcd.character_lcd_i2c as character_lcd i2c = busio.I2C(board.SCL, board.SDA) lcd = character_lcd.Character_LCD_I2C(i2c, 16, 2) lcd.text_direction = lcd.RIGHT_TO_LEFT lcd.message = "Hello, world!" time.sleep(5) """ return self._direction
Example #9
Source File: character_lcd.py From Adafruit_CircuitPython_CharLCD with MIT License | 6 votes |
def move_right(self): """Moves displayed text right one column. The following example scrolls a message to the right off the screen. .. code-block:: python import time import board import busio import adafruit_character_lcd.character_lcd_i2c as character_lcd i2c = busio.I2C(board.SCL, board.SDA) lcd = character_lcd.Character_LCD_I2C(i2c, 16, 2) scroll_message = "Scroll -->" lcd.message = scroll_message time.sleep(2) for i in range(len(scroll_message) + 16): lcd.move_right() time.sleep(0.5) """ self._write8(_LCD_CURSORSHIFT | _LCD_DISPLAYMOVE | _LCD_MOVERIGHT)
Example #10
Source File: character_lcd.py From Adafruit_CircuitPython_CharLCD with MIT License | 6 votes |
def message(self): """Display a string of text on the character LCD. Start position is (0,0) if cursor_position is not set. If cursor_position is set, message starts at the set position from the left for left to right text and from the right for right to left text. Resets cursor column and row to (0,0) after displaying the message. The following example displays, "Hello, world!" on the LCD. .. code-block:: python import time import board import busio import adafruit_character_lcd.character_lcd_i2c as character_lcd i2c = busio.I2C(board.SCL, board.SDA) lcd = character_lcd.Character_LCD_I2C(i2c, 16, 2) lcd.message = "Hello, world!" time.sleep(5) """ return self._message
Example #11
Source File: character_lcd.py From Adafruit_CircuitPython_CharLCD with MIT License | 6 votes |
def display(self): """ Enable or disable the display. True to enable the display. False to disable the display. The following example displays, "Hello, world!" on the LCD and then turns the display off. .. code-block:: python import time import board import busio import adafruit_character_lcd.character_lcd_i2c as character_lcd i2c = busio.I2C(board.SCL, board.SDA) lcd = character_lcd.Character_LCD_I2C(i2c, 16, 2) lcd.message = "Hello, world!" time.sleep(5) lcd.display = False """ return self.displaycontrol & _LCD_DISPLAYON == _LCD_DISPLAYON
Example #12
Source File: character_lcd.py From Adafruit_CircuitPython_CharLCD with MIT License | 6 votes |
def blink(self): """ Blink the cursor. True to blink the cursor. False to stop blinking. The following example shows a message followed by a blinking cursor for five seconds. .. code-block:: python import time import board import busio import adafruit_character_lcd.character_lcd_i2c as character_lcd i2c = busio.I2C(board.SCL, board.SDA) lcd = character_lcd.Character_LCD_I2C(i2c, 16, 2) lcd.blink = True lcd.message = "Blinky cursor!" time.sleep(5) lcd.blink = False """ return self.displaycontrol & _LCD_BLINKON == _LCD_BLINKON
Example #13
Source File: character_lcd.py From Adafruit_CircuitPython_CharLCD with MIT License | 6 votes |
def clear(self): """Clears everything displayed on the LCD. The following example displays, "Hello, world!", then clears the LCD. .. code-block:: python import time import board import busio import adafruit_character_lcd.character_lcd_i2c as character_lcd i2c = busio.I2C(board.SCL, board.SDA) lcd = character_lcd.Character_LCD_I2C(i2c, 16, 2) lcd.message = "Hello, world!" time.sleep(5) lcd.clear() """ self._write8(_LCD_CLEARDISPLAY) time.sleep(0.003)
Example #14
Source File: character_lcd.py From Adafruit_CircuitPython_CharLCD with MIT License | 5 votes |
def backlight(self): """Enable or disable backlight. True if backlight is on. False if backlight is off. The following example turns the backlight off, then displays, "Hello, world?", then turns the backlight on and displays, "Hello, world!" .. code-block:: python import time import board import busio import adafruit_character_lcd.character_lcd_i2c as character_lcd i2c = busio.I2C(board.SCL, board.SDA) lcd = character_lcd.Character_LCD_I2C(i2c, 16, 2) lcd.backlight = False lcd.message = "Hello, world?" time.sleep(5) lcd.backlight = True lcd.message = "Hello, world!" time.sleep(5) """ return self._enable
Example #15
Source File: character_lcd.py From Adafruit_CircuitPython_CharLCD with MIT License | 5 votes |
def color(self): """ The color of the display. Provide a list of three integers ranging 0 - 100, ``[R, G, B]``. ``0`` is no color, or "off". ``100`` is maximum color. For example, the brightest red would be ``[100, 0, 0]``, and a half-bright purple would be, ``[50, 0, 50]``. If PWM is unavailable, ``0`` is off, and non-zero is on. For example, ``[1, 0, 0]`` would be red. The following example turns the LCD red and displays, "Hello, world!". .. code-block:: python import time import board import busio import adafruit_character_lcd.character_lcd_rgb_i2c as character_lcd i2c = busio.I2C(board.SCL, board.SDA) lcd = character_lcd.Character_LCD_RGB_I2C(i2c, 16, 2) lcd.color = [100, 0, 0] lcd.message = "Hello, world!" time.sleep(5) """ return self._color
Example #16
Source File: i2c.py From Adafruit_Blinka with MIT License | 5 votes |
def test_read_value(self): import board gc.collect() import adafruit_bme280 gc.collect() if not ( yes_no("Is BME280 wired to SCL {} SDA {}".format(board.SCL, board.SDA)) ): return # test trivially passed i2c = I2C(board.SCL, board.SDA) bme280 = adafruit_bme280.Adafruit_BME280_I2C(i2c) temperature = bme280.temperature humidity = bme280.humidity pressure = bme280.pressure altitude = bme280.altitude self.assertTrue(type(temperature) is float) self.assertTrue(type(humidity) is float) self.assertTrue(type(pressure) is float) self.assertTrue(type(altitude) is float) self.assertTrue(-50 <= temperature <= 50) self.assertTrue(0 <= humidity <= 100) self.assertTrue(900 <= pressure <= 1100) self.assertTrue(-1000 <= altitude <= 9, 848)
Example #17
Source File: i2c.py From Adafruit_Blinka with MIT License | 5 votes |
def test_read_value(self): import math gc.collect() import board gc.collect() if not ( yes_no( "Is MMA8451 wired to SCL {} SDA {} and held still".format( board.SCL, board.SDA ) ) ): return # test trivially passed # from https://github.com/adafruit/Adafruit_CircuitPython_MMA8451/blob/29e31a0bb836367bc73763b83513105252b7b264/examples/simpletest.py import adafruit_mma8451 i2c = I2C(board.SCL, board.SDA) sensor = adafruit_mma8451.MMA8451(i2c) x, y, z = sensor.acceleration absolute = math.sqrt(x ** 2 + y ** 2 + z ** 2) self.assertTrue(9 <= absolute <= 11, "Not earth gravity") orientation = sensor.orientation self.assertTrue( orientation in ( adafruit_mma8451.PL_PUF, adafruit_mma8451.PL_PUB, adafruit_mma8451.PL_PDF, adafruit_mma8451.PL_PDB, adafruit_mma8451.PL_LRF, adafruit_mma8451.PL_LRB, adafruit_mma8451.PL_LLF, adafruit_mma8451.PL_LLB, ) )
Example #18
Source File: uv.py From aws-builders-fair-projects with Apache License 2.0 | 5 votes |
def __init__(self): Sensor.__init__(self) self.uv_min = float(self.config["uv"]["min"]) self.uv_max = float(self.config["uv"]["max"]) # initialize I2C i2c = busio.I2C(board.SCL, board.SDA) # create the VEML6075 object self.veml = adafruit_veml6075.VEML6075( i2c, integration_time=int(self.config["uv"]["integration_time"]) )
Example #19
Source File: snake_eyes_bonnet.py From Pi_Eyes with MIT License | 5 votes |
def __init__(self, *args, **kwargs): """SnakeEyesBonnet constructor.""" super(SnakeEyesBonnet, self).__init__(*args, **kwargs) # Thread self.i2c = busio.I2C(board.SCL, board.SDA) self.ads = ADS.ADS1015(self.i2c) self.ads.gain = 1 self.period = 1.0 / 60.0 # Polling inverval = 1/60 sec default self.print_values = False # Don't print values by default self.channel = [] for index in range(4): self.channel.append(AdcChannel( AnalogIn(self.ads, self.channel_dict[index])))
Example #20
Source File: sensor_rgbtcs34725.py From Pigrow with GNU General Public License v3.0 | 5 votes |
def read_sensor(location="", extra="", *args): # Try importing the modules then give-up and report to user if it fails import datetime import time try: import board import busio import adafruit_tcs34725 except: print("adafruit_tcs34725 module not installed, install using the command;") print(" sudo pip3 install adafruit-circuitpython-tcs34725 ") return None # set up and read the sensor read_attempt = 1 i2c = busio.I2C(board.SCL, board.SDA) sensor = adafruit_tcs34725.TCS34725(i2c) gain = 1 sensor.gain = gain # 1, 4, 16, 60 sensor.integration_time = 50 # The integration time of the sensor in milliseconds. Must be a value between 2.4 and 614.4. while read_attempt < 5: try: color_temp = sensor.color_temperature lux = sensor.lux rgb = sensor.color_rgb_bytes # if lux == None: print("--problem reading tcs34725, try " + str(read_attempt)) time.sleep(2) read_attempt = read_attempt + 1 else: logtime = datetime.datetime.now() return [['time',logtime], ['lux', str(lux / gain)], ['color_temp', color_temp], ['r', rgb[0]], ['g', rgb[1]], ['b', rgb[2]]] except Exception as e: print("--exception while reading tcs34725, try " + str(read_attempt)) print(" -- " + str(e)) time.sleep(2) read_attempt = read_attempt + 1 return None
Example #21
Source File: sensor_si7021.py From Pigrow with GNU General Public License v3.0 | 5 votes |
def read_sensor(location="", extra="", *args): # Try importing the modules then give-up and report to user if it fails import datetime try: import board import busio import adafruit_si7021 except: print("adafruit_si7021 module not installed, install using the command;") print(" sudo pip3 install adafruit-circuitpython-si7021") return None # set up and read the sensor try: i2c = busio.I2C(board.SCL, board.SDA) sensor = adafruit_si7021.SI7021(i2c) temperature = sensor.temperature humidity = sensor.relative_humidity if humidity == None or temperature == None or humidity > 101: print("--problem reading si7021") return None else: humidity = round(humidity,2) temperature = round(temperature, 2) logtime = datetime.datetime.now() return [['time',logtime], ['humid', humidity], ['temperature', temperature]] except: print("--problem reading si7021") return None
Example #22
Source File: sensor_bme280.py From Pigrow with GNU General Public License v3.0 | 4 votes |
def read_sensor(location="", extra="", *args): # Try importing the modules then give-up and report to user if it fails import datetime import time try: import board import busio import adafruit_bme280 except: print("bme280 module not installed, install using the command;") print(" sudo pip3 install adafruit-circuitpython-bme280 ") return None # set up and read the sensor read_attempt = 1 i2c = busio.I2C(board.SCL, board.SDA) i2c_address = location if location == "0x76": bme280 = adafruit_bme280.Adafruit_BME280_I2C(i2c, 0x76) elif location == "0x77": bme280 = adafruit_bme280.Adafruit_BME280_I2C(i2c, 0x77) while read_attempt < 5: try: temperature = bme280.temperature humidity = bme280.humidity pressure = bme280.pressure # if humidity == None or temperature == None or humidity > 101: print("--problem reading bme280, try " + str(read_attempt)) time.sleep(2) read_attempt = read_attempt + 1 else: humidity = round(humidity,2) temperature = round(temperature, 2) pressure = round(pressure, 2) logtime = datetime.datetime.now() return [['time',logtime], ['humid', humidity], ['temperature', temperature], ['pressure', pressure]] except Exception as e: print("--exception while reading bcm280, try " + str(read_attempt)) print(" -- " + str(e)) time.sleep(2) read_attempt = read_attempt + 1 return None