MicroPython AS6212 Library¶

as6212¶

MicroPython Library for the ASM AS6212 Temperature Sensor

• Author(s): Jose D. Montoya

class micropython_as6212.as6212.AS6212(i2c, address: int = 0x48)[source]¶

Driver for the AS6212 Sensor connected over I2C.

Parameters:¶

i2c : I2C¶

The I2C bus the AS6212 is connected to.

address : int¶

The I2C device address. Defaults to 0x48

Quickstart: Importing and using the device

Here is an example of using the AS6212 class. First you will need to import the libraries to use the sensor

from machine import Pin, I2C
from micropython_as6212 import as6212

Once this is done you can define your machine.I2C object and define your sensor object

i2c = I2C(1, sda=Pin(2), scl=Pin(3))
as6 = as6212.AS6212(i2c)

Now you have access to the attributes

temp = as6.temperature

property alert : bool¶

Sensor alert The alert bit can be used to easily compare the current temperature reading to the thresholds that can be set with the temperature_low_limit and temperature_high_limit.

property conversion_rate : str¶

Sensor conversion_rate The conversion rate bits define the number of executed temperature conversions per time unit. Additional readouts of the temperature register between conversions are possible but not recommended because the value is changed only after a conversion is finished

Mode	Value
as6212.RATE_0_25	0b00
as6212.RATE_1	0b01
as6212.RATE_4	0b10
as6212.RATE_8	0b11

property interrupt_mode : str¶

Sensor interrupt_mode The interrupt mode bit defines whether the device operates in the temperature comparator mode or the interrupt mode. This defines the operation of the ALERT output as described in the polarity section bit.

The comparator mode is characterized that if the temperature value exceeds the THIGH value, the alert output is changed (e.g. from high to low if the polarity bit is set to 0 and vice versa). The alert output stays in that condition until the measured temperature drops below the defined TLOW value.

The interrupt mode is characterized that it changes the alert output as soon as the measured temperature crosses the THIGH or TLOW value threshold.

The alert bit has the same setting as the alert output if the device is set to comparator mode.

Mode	Value
as6212.COMPARATOR	0b0
as6212.INTERRUPT	0b1

property operation_mode : str¶

Sensor operation_mode When the sleep mode is activated, this will shut the device down immediately and reduces the power consumption to a minimum value

Mode	Value
as6212.CONTINUOUS	0b0
as6212.SLEEP	0b1

property temperature : float¶

Temperature in Celsius

property temperature_high_limit : float¶

Temperature high limit in Celsius

property temperature_low_limit : float¶

Temperature low limit in Celsius