MiFlora

ROS package for reading the MiFlora plant sensor.

ROS package freezes bluetooth adapter and stops working frequently.
Any ideas? Please open pull request or open issue.

Bluetooth monitor for light, moisture, electric conductivity, and temperature.

Install instructions

Requires python > 3.6

sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt-get install python3.7

sudo apt-get install python-pip libglib2.0-dev
sudo python3.7 -m pip install miflora
sudo python3.7 -m pip install bluepy

Set permission so the app can use Bluetooth

$ find /usr/local/lib -name bluepy-helper
or
$ find /home -name bluepy-helper

$ sudo setcap cap_net_raw+e  **PATH**/bluepy-helper
$ sudo setcap cap_net_admin+eip  **PATH**/bluepy-helper

Where **PATH** is the place where bluepy-helper is installed.

Install the ROS package

catkin_ws/src$ sudo apt-get install python-catkin-tools
catkin_ws/src$ git clone https://github.com/ros-agriculture/miflora_ros.git
catkin_ws/src$ cd ..
catkin_ws/src$ rosdep install --from-paths src --ignore-src --rosdistro ${ROS_DISTRO}
catkin_ws$ catkin build
catkin_ws$ source devel/setup.bash

Discover the MAC address of your sensor.

catkin_ws$ rosrun miflora_server discover_devices.py

This will print out the MAC address if found.
00:00:00:00:00:00

Edit the launch file and update with MAC address and name.

catkin_ws$ rosedit miflora_server client.launch

    <arg name="Frame_ID" default="MEASUREMENT_FRAME"/>
    <arg name="MAC_addr" default="00:00:00:00:00:00"/>
    <!-- Sample Rate minimum is once per minute 0.01667 hz -->
    <arg name="sample_rate" default="0.01667"/>

Running the Node

Start ROS Service

catkin_ws$ roslaunch miflora_server service.launch

Start the ROS Service Client to request readings

catkin_ws$ roslaunch miflora_server client.launch

Start both the service and client

catkin_ws$ roslaunch miflora_server read_sensor.launch

Troubleshooting:

If your raspberry pi stops being able to connect to the sensor run:

$ sudo hciconfig hci0 down && sudo hciconfig hci0 up

The BLE device freezes a lot on a raspberrypi 3. Adding this crontab job will reset your BLE at a regular interval.

$ sudo crontab -e

This will open a edit window.  Then add this at the bottom:

5 * * * * hciconfig hci0 reset