Xiaomi Mi Flora [Temp/Light/Moisture] BLE Sensor

[LouiS22]

Yes..

When it's ready, that will be my prompt switch to RFLink

[jadon]

I received my Xiaomi Mi Flora yesterday! I've only had a few minutes to play with it. Connecting with my phone was easy, as you'd expect with a bluetooth LE device. However, I downloaded the Xiaomi Home app and noticed the Flora dashboard is Chinese only So I couldn't tell what's what... Anyway, I'll have a look at reading data with that github script this weekend and see if it makes any sense

[LouiS22]

I received my Xiaomi Mi Flora yesterday! I've only had a few minutes to play with it. Connecting with my phone was easy, as you'd expect with a bluetooth LE device. However, I downloaded the Xiaomi Home app and noticed the Flora dashboard is Chinese only So I couldn't tell what's what... Anyway, I'll have a look at reading data with that github script this weekend and see if it makes any sense

Could you please explore the device's range? For example, if you put the sensor into a corner will you phone's able to get the reading from another room, or another floor, etc?

[Itschi]

I got mine today. Transmission of the data over a free air distance of 10m worked fine. iOS App is in English and Chinese. Have to wait for the arrival of a HM-11 BLE module to continue with reading the sensors data by an own application...

[jadon]

The range is quite good! I live in an old house (so no concrete walls). I have my Mi Flora in the living room and my raspberry pi 3 in the hallway. I could even connect from my laptop on the 2nd floor.

Anyway, using "sudo hcitool lescan" it lists my device:

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pi@domoticz:~/miflora$ sudo hcitool lescan
LE Scan ...
C4:7C:8D:--:--:-- Flower care

Next, I cloned the repository from https://github.com/open-homeautomation/miflora

I changed the MAC address in demo.py and started the script. After 30 seconds or so, I got the following data:

Code: Select all

pi@domoticz:~/miflora$ python3 demo.py
Getting data from Mi Flora
FW: 2.6.6
Name: Flower care
Temperature: 19.4
Moisture: 9
Light: 201
Conductivity: 0
Battery: 100

So what's next?

[pvm]

You can store them in virtual sensors

[jadon]

okay, so I create a dummy hardware device and called it "Flower care"



Then I added three virtual sensors: Temp, Lux and Moisture



I copied the demo.py script to domoticz.py and added some code (Python is not my native programming language, so suggetions are welcome)

Code: Select all

import urllib.request
import base64
from miflora.miflora_poller import MiFloraPoller, \
    MI_CONDUCTIVITY, MI_MOISTURE, MI_LIGHT, MI_TEMPERATURE, MI_BATTERY

# Settings for the domoticz server
domoticzserver   = "localhost:8080"
domoticzusername = "admin"
domoticzpassword = "----"

# Sensor IDs
idx_temp  = "88"
idx_lux   = "89"
idx_moist = "90"

############

base64string = base64.encodestring(('%s:%s' % (domoticzusername, domoticzpassword)).encode()).decode().replace('\n', '')

def domoticzrequest (url):
  request = urllib.request.Request(url)
  request.add_header("Authorization", "Basic %s" % base64string)
  response = urllib.request.urlopen(request)
  return response.read()

poller = MiFloraPoller("C4:7C:8D:61:F7:2A")
#print("Getting data from Mi Flora")
#print("FW: {}".format(poller.firmware_version()))
#print("Name: {}".format(poller.name()))
#print("Temperature: {}".format(poller.parameter_value("temperature")))
#print("Moisture: {}".format(poller.parameter_value(MI_MOISTURE)))
#print("Light: {}".format(poller.parameter_value(MI_LIGHT)))
#print("Conductivity: {}".format(poller.parameter_value(MI_CONDUCTIVITY)))
#print("Battery: {}".format(poller.parameter_value(MI_BATTERY)))

val_bat  = "{}".format(poller.parameter_value(MI_BATTERY))

# Update temp
val_temp = "{}".format(poller.parameter_value("temperature"))
domoticzrequest("http://" + domoticzserver + "/json.htm?type=command&param=udevice&idx=" + idx_temp + "&nvalue=0&svalue=" + val_temp + "&battery=" + val_bat)

# Update lux
val_lux = "{}".format(poller.parameter_value(MI_LIGHT))
domoticzrequest("http://" + domoticzserver + "/json.htm?type=command&param=udevice&idx=" + idx_lux + "&svalue=" + val_lux + "&battery=" + val_bat)

# Update moisture
val_moist = "{}".format(poller.parameter_value(MI_MOISTURE))
domoticzrequest("http://" + domoticzserver + "/json.htm?type=command&param=udevice&idx=" + idx_moist + "&nvalue=" + val_moist + "&battery=" + val_bat)

Using a cronjob I run this script every hour and my sensors get updated
I don't know how long the battery is going to last. It looks like it drains 1% every time I do a read out....

Note: I'm using python3

[deennoo]

Great script, can do the job on my side waiting for a better BLE integration on RFLink.

Why don't you use a virtual leaf sensor ? Icon is more revelante.

As this is for a plant care, maybe run script twice a day (at mid day and before sunset) can be more usefull and battery friendly.

[pvm]

Thnx! Script working great

[deennoo]

Yeap thx for the script ! works as perfect !

[trixwood]

i added with a custom sensor...

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idx_cond  = "141"

# Update conductivity
val_cond = "{}".format(poller.parameter_value(MI_CONDUCTIVITY))
domoticzrequest("http://" + domoticzserver + "/json.htm?type=command&param=udevice&idx=" + idx_cond + "&svalue=" + val_cond + "&battery=" + val_bat)

[deennoo]

i added with a custom sensor...

Code: Select all

idx_cond  = "141"

# Update conductivity
val_cond = "{}".format(poller.parameter_value(MI_CONDUCTIVITY))
domoticzrequest("http://" + domoticzserver + "/json.htm?type=command&param=udevice&idx=" + idx_cond + "&svalue=" + val_cond + "&battery=" + val_bat)

Hey hey same here...

[pvm]

What type of device do you use?

[deennoo]

Custom sensor

[pvm]

I understand I use custom sensor leaf wetness

[Deluka]

Would it be possible to use more then 1 Mi Flora

[trixwood]

yes! as many as you like.

Does anybody has some info on how long the battery will last?

[LouiS22]

yes! as many as you like.

Does anybody has some info on how long the battery will last?

The users manual promises a year, but IMHO it really depends on your using habits: i.e. if you poll the data every minute, it will suck the battery really fast.

[pvm]

After a week of 1 daily request and first day 15 times it is still 100 full

[lepetitnicolas]

Thanks for this script ! It's work perfect.

Now, i need to create a custom sensor (i don't see it.... V3.4834) and a cronjob