https://codeberg.org/scy/mijia-temphum-upy

MicroPython library to read certain Xiaomi Mijia BLE temperature & humidity sensors.
https://codeberg.org/scy/mijia-temphum-upy

Last synced: 3 months ago
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MicroPython library to read certain Xiaomi Mijia BLE temperature & humidity sensors.

• Host: codeberg.org
• URL: https://codeberg.org/scy/mijia-temphum-upy
• Owner: scy
• Created: 2021-07-03T23:41:56.000Z (over 3 years ago)
• Default Branch: main
• Last Synced: 2022-09-13T18:16:36.633Z (about 2 years ago)
• Language:
• Homepage:
• Size: 119 KB
• Stars: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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• awesome-micropython - mijia-temphum-upy - MicroPython library to read certain Xiaomi Mijia BLE temperature & humidity sensors. (Libraries / Communications)

README

        
# mijia-temphum-upy

This is MicroPython code to read temperature and humidity from certain Xiaomi Mijia sensors.

**Note:**

Consider this beta quality software, I'm in a hurry.

## Requirements

This requires MicroPython, a board with BLE support and the [Perthensis](https://codeberg.org/scy/perthensis) `gattc` module.

The latter is currently the most complicated requirement:

`gattc` is still in development and not yet available in a stable branch.

## Example

### A single sensor

```python

from mijia_temphum import Central, Sensor

def result(val):

    print("{0} is at {1}°C and {2}%".format(

        val.sensor.hexaddr, val.temp_c, val.hum_pcnt))

central = Central()

central.enable()

s = Sensor(central, "4C:65:A8:DC:1B:6A", result)

s.request_value()

```

### Multiple sensors

```python

from mijia_temphum import Central, Sensors

def result(val):

    print("{0} ({1}) is at {2}°C and {3}%".format(

        val.sensor.name, val.sensor.hexaddr, val.temp_c, val.hum_pcnt))

def status(done, of, elapsed_s):

    print("{0} of {1} sensors read after {2}s".format(

        done, of, elapsed_s))

central = Central()

central.enable()

s = Sensors(central, {

    "4C:65:A8:DC:1B:6A": "Desk",

    "4C:65:A8:DC:29:07": "Kitchen",

}, result, status)

s.request_all()

```

### Multiple sensors regularly

This is using the coroutine scheduler provided by Perthensis.

```python

from mijia_temphum import Central, ScheduledSensors

from perthensis.scheduler import Scheduler

def result(val):

    print("{0} ({1}) is at {2}°C and {3}%".format(

        val.sensor.name, val.sensor.hexaddr, val.temp_c, val.hum_pcnt))

def status(done, of, elapsed_s):

    print("{0} of {1} sensors read after {2}s".format(

        done, of, elapsed_s))

central = Central()

central.enable()

s = ScheduledSensors(central, {

    "4C:65:A8:DC:1B:6A": "Desk",

    "4C:65:A8:DC:29:07": "Kitchen",

}, result, status, 300)  # last number is interval in seconds

sch = Scheduler()

sch(s.schedule)

sch.run_forever()

```