diff options
Diffstat (limited to 'klippy/extras/lm75.py')
| -rw-r--r-- | klippy/extras/lm75.py | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/klippy/extras/lm75.py b/klippy/extras/lm75.py index 7571f270..10fbcb9f 100644 --- a/klippy/extras/lm75.py +++ b/klippy/extras/lm75.py @@ -9,33 +9,33 @@ from . import bus LM75_CHIP_ADDR = 0x48 LM75_I2C_SPEED = 100000 LM75_REGS = { - 'TEMP' : 0x00, - 'CONF' : 0x01, - 'THYST' : 0x02, - 'TOS' : 0x03, - 'PRODID' : 0x07 # TI LM75A chips only? + "TEMP": 0x00, + "CONF": 0x01, + "THYST": 0x02, + "TOS": 0x03, + "PRODID": 0x07, # TI LM75A chips only? } -LM75_REPORT_TIME = .8 +LM75_REPORT_TIME = 0.8 # Temperature can be sampled at any time but the read aborts # the current conversion. Conversion time is 300ms so make # sure not to read too often. -LM75_MIN_REPORT_TIME = .5 +LM75_MIN_REPORT_TIME = 0.5 + class LM75: def __init__(self, config): self.printer = config.get_printer() self.name = config.get_name().split()[-1] self.reactor = self.printer.get_reactor() - self.i2c = bus.MCU_I2C_from_config(config, LM75_CHIP_ADDR, - LM75_I2C_SPEED) + self.i2c = bus.MCU_I2C_from_config(config, LM75_CHIP_ADDR, LM75_I2C_SPEED) self.mcu = self.i2c.get_mcu() - self.report_time = config.getfloat('lm75_report_time', LM75_REPORT_TIME, - minval=LM75_MIN_REPORT_TIME) + self.report_time = config.getfloat( + "lm75_report_time", LM75_REPORT_TIME, minval=LM75_MIN_REPORT_TIME + ) self.temp = self.min_temp = self.max_temp = 0.0 self.sample_timer = self.reactor.register_timer(self._sample_lm75) self.printer.add_object("lm75 " + self.name, self) - self.printer.register_event_handler("klippy:connect", - self.handle_connect) + self.printer.register_event_handler("klippy:connect", self.handle_connect) def handle_connect(self): self._init_lm75() @@ -60,14 +60,14 @@ class LM75: # Check and report the chip ID but ignore errors since many # chips don't have it try: - prodid = self.read_register('PRODID', 1)[0] + prodid = self.read_register("PRODID", 1)[0] logging.info("lm75: Chip ID %#x" % prodid) except: pass def _sample_lm75(self, eventtime): try: - sample = self.read_register('TEMP', 2) + sample = self.read_register("TEMP", 2) self.temp = self.degrees_from_sample(sample) except Exception: logging.exception("lm75: Error reading data") @@ -77,7 +77,8 @@ class LM75: if self.temp < self.min_temp or self.temp > self.max_temp: self.printer.invoke_shutdown( "LM75 temperature %0.1f outside range of %0.1f:%.01f" - % (self.temp, self.min_temp, self.max_temp)) + % (self.temp, self.min_temp, self.max_temp) + ) measured_time = self.reactor.monotonic() self._callback(self.mcu.estimated_print_time(measured_time), self.temp) @@ -87,7 +88,7 @@ class LM75: # read a single register regs = [LM75_REGS[reg_name]] params = self.i2c.i2c_read(regs, read_len) - return bytearray(params['response']) + return bytearray(params["response"]) def write_register(self, reg_name, data): if type(data) is not list: @@ -98,7 +99,7 @@ class LM75: def get_status(self, eventtime): return { - 'temperature': round(self.temp, 2), + "temperature": round(self.temp, 2), } |