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cayenne-plugin-sensehat's Introduction

Cayenne Sense HAT Plugin

A plugin allowing the Cayenne Pi Agent to access Sense HAT data and display it in the Cayenne Dashboard.

Requirements

Hardware

Software

Getting Started

Installation

From the command line run the following commands to install this plugin.

cd /etc/myDevices/plugins
sudo git clone https://github.com/myDevicesIoT/cayenne-plugin-sensehat.git
cd cayenne-plugin-sensehat
sudo python3 setup.py install
sudo service myDevices restart

Using the Sense HAT Emulator

If you do not have an actual Sense HAT board and would like to use the Sense HAT Emulator instead you will need to install and run the Emulator.

  1. Install the Sense HAT Emulator.

    sudo apt-get update
sudo apt-get install python-sense-emu python3-sense-emu sense-emu-tools

  2. Launch the Sense HAT Emulator from the Pi desktop.

  3. Add this entry to the SenseHAT Temperature section in the sensehat.plugin file: init_args={"use_emulator": true}.

  4. Restart the Cayenne Agent.

    sudo service myDevices restart

    Temporary widgets for the plugin should now show up in the Cayenne Dashboard. You can make them permanent by clicking the plus sign.

    NOTE: If the temporary widgets do not show up try refreshing the Cayenne Dashboard or restarting the agent again using sudo service myDevices restart.

cayenne-plugin-sensehat's People

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Forkers

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cayenne-plugin-sensehat's Issues

Doesn't work under Raspbian GNU/Linux 10 (buster)

The plug-in installs just fine, no errors, however none of the sensors show up. This is the latest buster image freshly copied onto a new SD card straight from Rpi site:

PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"
NAME="Raspbian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"

Log file below, it seems to me that the plug-in can't communicate with the bare metal Hat, possibly due to the buster image? Otherwise the Hat is fully functional, I can read sensors from small py example code just fine.

2020-07-03 06:35:11 - myDevices - INFO - Sensors info: []
2020-07-03 06:35:11 - myDevices - INFO - Sense HAT service connection refused
2020-07-03 06:35:11 - myDevices - ERROR - [Errno 111] Connection refused
2020-07-03 06:35:11 - myDevices - INFO - Sense HAT service connection refused
2020-07-03 06:35:11 - myDevices - ERROR - [Errno 111] Connection refused
2020-07-03 06:35:11 - myDevices - INFO - Sense HAT service connection refused
2020-07-03 06:35:11 - myDevices - ERROR - [Errno 111] Connection refused
2020-07-03 06:35:11 - myDevices - INFO - Sense HAT service connection refused
2020-07-03 06:35:11 - myDevices - ERROR - [Errno 111] Connection refused
2020-07-03 06:35:11 - myDevices - INFO - Send changed data: [{'sys:cpu;load': 16.5}, {'sys:cpu;temp': 48.85}, {'sys:ram;usage': 302604288}, {'sys:storage:/;usage': 3119116288}, {'sys:net;ip': '192.168.166.94'}, {'dev:sensehat:4': 0}, {'dev:sensehat:5': 0.0}] + sys:gpio
2020-07-03 06:35:26 - myDevices - ERROR - Failed to get sensor data: Temperature GGMMo5GMCJpwLKG
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/dist-packages/myDevices-2.0.4-py3.7.egg/myDevices/sensors/sensors.py", line 322, in SensorsInfo
    value = self.CallDeviceFunction(func)
  File "/usr/local/lib/python3.7/dist-packages/myDevices-2.0.4-py3.7.egg/myDevices/sensors/sensors.py", line 264, in CallDeviceFunction
    result = func(*args)
  File "/usr/local/lib/python3.7/dist-packages/myDevices-2.0.4-py3.7.egg/myDevices/devices/sensor/__init__.py", line 116, in getCelsius
    return self.__getCelsius__()
  File "/usr/local/lib/python3.7/dist-packages/myDevices-2.0.4-py3.7.egg/myDevices/devices/sensor/tmpXXX.py", line 48, in __getCelsius__
    d = self.readBytes(2)
  File "/usr/local/lib/python3.7/dist-packages/myDevices-2.0.4-py3.7.egg/myDevices/devices/bus.py", line 157, in readBytes
    return bytearray(self.readDevice(size))
  File "/usr/local/lib/python3.7/dist-packages/myDevices-2.0.4-py3.7.egg/myDevices/devices/bus.py", line 153, in readDevice
    return os.read(self.fd, size)
OSError: [Errno 121] Remote I/O error
2020-07-03 06:35:26 - myDevices - INFO - Sensors info: []
2020-07-03 06:35:26 - myDevices - INFO - Sense HAT service connection refused
2020-07-03 06:35:26 - myDevices - ERROR - [Errno 111] Connection refused
2020-07-03 06:35:26 - myDevices - INFO - Sense HAT service connection refused
2020-07-03 06:35:26 - myDevices - ERROR - [Errno 111] Connection refused
2020-07-03 06:35:26 - myDevices - INFO - Sense HAT service connection refused
2020-07-03 06:35:26 - myDevices - ERROR - [Errno 111] Connection refused
2020-07-03 06:35:26 - myDevices - INFO - Sense HAT service connection refused
2020-07-03 06:35:26 - myDevices - ERROR - [Errno 111] Connection refused
2020-07-03 06:35:26 - myDevices - INFO - Send changed data: [{'sys:cpu;load': 0.0}, {'sys:cpu;temp': 45.084}, {'sys:ram;usage': 302784512}]

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