This is a library for communicating with IoT and home automation sensors and low-level devices.
Project description
Sensation
This is a Python library for communicating with IoT and home automation sensors and low-level devices.
Sensors
SEN0395
The SEN0395 is a millimeter-wave radar motion sensor capable of detecting human presence up to 9 meters away.
Code | SEN0395 |
Brand | DFRobot |
Type | Millimeter-wave radar motion sensor |
Name | mmWave Radar - 24GHz Human Presence Detection Sensor (9 Meters) |
Alternative Names | LeapMMW HS2xx3A series |
Python Package | sensation.sen0395 |
Product URL | DFRobot mmWave Radar |
For more information about the product, refer to the SEN0395 documentation.
Common Usage Examples
Sensor Instance (common code for the following examples)
from serial import Serial
from sensation.sen0395 import *
sensor = Sensor("sensor_name", Serial('/dev/ttyAMA0', 115200, timeout=1))
sensor.status() # Not needed, just checking that the sensor works well
# SensorStatus(sensor_id=SensorId(sensor_type=<SensorType.SEN0395: 'sen0395'>, sensor_name='sensor_name'), port='/dev/ttyAMA0', timeout=1, is_reading=False, is_scanning=False)
# >> DO YOUR OWN THINGS HERE <<
sensor.close() # This closes also the `Serial` instance
Presence Reading
sensor.read_presence() # Returns `None` if sensor is not scanning
sensor.start_scanning()
# CommandResponse(outputs=[sensorStart, Done])
sensor.read_presence() # Returns `False` on no presence
# False
sensor.read_presence() # Returns `True` on presence
# True
Presence Observer
handler = PresenceHandler()
handler.observers.append(lambda presence: print(f"[presence_change] presence=[{presence}]"))
sensor.handlers.append(handler)
# sensor.clear_buffer() # You may want to clear the buffer first, if the connection has been opened for a while
sensor.start_reading() # This starts a new thread, alternatively you can run the blocking `read()` method by yourself
# [presence_change] presence=[False]
# [presence_change] presence=[True]
sensor.stop_reading()
Managed Sensor Configuration
sensor.configure_latency(10, 60)
# ConfigChainResponse(pause_cmd=None, cfg_cmd=CommandResponse(outputs=[outputLatency -1 10 60, Done]), save_cmd=CommandResponse(outputs=[saveCfg 0x45670123 0xCDEF89AB 0x956 128C6 0xDF54AC89, save cfg complete, Done]), resume_cmd=None)
Manual Sensor Configuration
sensor.stop_scanning()
#CommandResponse(outputs=[sensorStop, Done])
sensor.set_latency(15, 35)
# CommandResponse(outputs=[outputLatency -1 15 35, Done])
sensor.save_configuration()
# CommandResponse(outputs=[saveCfg 0x45670123 0xCDEF89AB 0x956128C6 0xDF54AC89, save cfg complete, Done])
sensor.start_scanning()
# CommandResponse(outputs=[sensorStart, Done])
#SensorStatus(sensor_id=SensorId(sensor_type=<SensorType.SEN0395: 'sen0395'>, sensor_name='sensor_name'), port='/dev/ttyAMA0', timeout=1, is_reading=False, is_scanning=True)
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