Published September 28, 2024 © CC BY-NC-SA

M5GO IOT Starter Kit Part 5 EZData2

The Label say IOT Starter Kit so Let do some Internet of Things with the kit and M5Stack EZData2 servers.

IntermediateProtip1 hour81

Things used in this project

Hardware components

M5Stack M5GO IoT Starter Kit

Software apps and online services

M5Stack UIFLow2

Story

M5GO IOT Starter Kit Part 5 - EZData2

In Part 5 of the M5GO IOT Starter Kit series I look at using the IOT Starter Kit with M5Stack EZdata2 IOT server.

Part 4 is available here: https://www.hackster.io/AJB2K3/m5go-iot-starter-kit-part-4-all-about-the-base-4197a7

Part 3 is available here: https://www.hackster.io/AJB2K3/m5go-iot-starter-kit-using-units-part-2-3613fa

Part 2 is available here: https://www.hackster.io/AJB2K3/m5go-iot-starter-kit-using-units-722343

Part 1 is available here: https://www.hackster.io/AJB2K3/m5go-iot-starter-kit-part-1-8ef6ae

The EZData2 Server is an IOT service for handling small amounts of data like a reduced version of Amazon AWS or Microsoft Azure services. The EZData2 server receives data sent to it from M5Stack controllers and gives very basic display facilities for the data. Not only does EZData2 receive data from a device, it also makes this data available to other permitted devices.

In order to get started with EZData2 we first need a data source. If you have read all the parts so far you will know where to find the data source. If you haven't worked it out yet, the data source I will be using will come from the ENV sensor found it the kit. For more information on the ENV Unit you can check out part 2 of the series found here: https://www.hackster.io/AJB2K3/m5go-iot-starter-kit-using-units-722343

First step is to build the basic code structure as shown below:

The Basic ENV Code.

Now that the basic code is ready, we can proceed to modify it to work with the EZData2 server. To communicate with the EZData2 server we make use of the following blocks:

UIFlow2's blocks available for communicating with EZData2.

In order to start communicating with the EZData2 server, we first have to initialise a connection to the server using one of the following Init blocks.

EZData's Initialisation blocks.

The first Init block uses the M5Stack controllers ID as the device token and a user defined Key.

The second Init block is used for specifying a user selectable device token and key.

The third block is used for defining a dataset to be created using the device key specified in the first two blocks.

The last block is for just defining a device token without

If we visit the EZData2 server we can see that the M5GO is detected but not yet sending any data.

EZdata2's Manager main interface.

In order to send data to EZData2 we alter the code as follows:

This creates a map that consists of key and value pairs. When EZData2 is opened again the data still may not be visible. If it's not, click on the reload button and or the Icon on the left for the controller and the data received by EZData2 will be shown.

EZdata2's manager does not automatically load the data from the EZData2 server as it's just a simple visualisation tool so you will need to keep hitting the refresh button to see the latest received data.

When data is discovered six actions are made available to each stream of data.

Actions available to received data.

From left to right, the actions are:

The puzzle shaped button creates a custom block in UIFlow2 to receive data from the EZData Server and looks like this:

Created custom UIFlow2 EZData callback block.

The square with a pencil action allows you to edit the received values in the following panel:

EZData2's Value edit panel.

The bin shaped icon deletes the Key.The next icon with the vertical line brings up the history of data received by the EZdata2 server and looks like this:

EZData2 History Panel.

The arrow shaped icon allows you to share the data sources by bringing up a panel with generated links to the uploaded data source.

EZData2's share data panel

And the big "Add to Dataset" button allows you to add the data to the dataset manager.

Dataset Manager.

EZData2's Dataset manager.

If we click on the Dataset Manager tab after hitting the Add to Dataset button there will be data shown but if you didn't hit the button, you can click on the add to button in the left panel to add our data to the dataset.

Viewing the available dataset.

Once data is added to the data set manager we have the actions to create the custom block again (see above) or delete the data from the manager.

Above the dataset we can find some more functions:

Dataset management actions

The first item is a dropdown list containing the datasets we have available. If there are no other datasets then only one item will be displayed.

The "+" Symbol is used to create a new dataset.

The next Icon is used to change the name of the dataset.

The Bin icon is used to erase datasets.

The circle icon is used to reload the available datasets in the EZData2 server.

There is another Icon at the top of the screen that I haven't covered.

This icon access the Ezdata2 server from a command line interface allowing deeper access to the data.

EZData2's Command Line Interface.

This is just the basics on using EZData2 for basic IOT services. I will return to EZData2 and the accompanying mobile app but its time for a little more electronics.

Contact Me.

Due to Issues with code and researching functions, this part has taken a lot longer than the other parts. If you find this useful then there is more crossover guides coming. You can drop a Message in Hackster.io message box below of find me via the following links:

https://github.com/Ajb2k3

https://twitter.com/Cpt_J_Purcell

https://bsky.app/profile/jamespurcell.bsky.social

On Discord (if I ever work out how to share the profile!)https://mastodonapp.uk/@AdamBryant

And on the M5Stack Facebook group and community forum.

If you have some spare change you can now buy me a tea @ https://bmc.link/ajb2k35

Expanding the ENVIII code to communicate with the EZData2 server.

import os, sys, io
import M5
from M5 import *
from hardware import *
from unit import ENVUnit
from ezdata import *
import time



title0 = None
T = None
P = None
H = None
F = None
i2c0 = None
ez_0 = None
ez_IOT_cbac = None
env3_0 = None


def setup():
  global title0, T, P, H, F, i2c0, ez_0, ez_IOT_cbac, env3_0

  M5.begin()
  Widgets.fillScreen(0x222222)
  title0 = Widgets.Title("M5GO IOT GUIDE P5", 65, 0xffffff, 0x0000FF, Widgets.FONTS.DejaVu18)
  T = Widgets.Label("Temperature: ", 3, 56, 1.0, 0xffffff, 0x222222, Widgets.FONTS.DejaVu18)
  P = Widgets.Label("Pressure: ", 3, 88, 1.0, 0xffffff, 0x222222, Widgets.FONTS.DejaVu18)
  H = Widgets.Label("Humidity: ", 3, 121, 1.0, 0xffffff, 0x222222, Widgets.FONTS.DejaVu18)
  F = Widgets.Label("fetch", 3, 167, 1.0, 0xffffff, 0x222222, Widgets.FONTS.DejaVu18)

  i2c0 = I2C(0, scl=Pin(22), sda=Pin(21), freq=100000)
  env3_0 = ENVUnit(i2c=i2c0, type=3)
  ez_0 = EzData('c6082b33946547ac9062fbab6a2392a4', 'IOT')
  ez_IOT_cbac = EzData('c6082b33946547ac9062fbab6a2392a4', 'IOT')


def loop():
  global title0, T, P, H, F, i2c0, ez_0, ez_IOT_cbac, env3_0
  M5.update()
  T.setText(str((str('Temperature: ') + str((env3_0.read_temperature())))))
  P.setText(str((str('Pressure: ') + str((env3_0.read_pressure())))))
  H.setText(str((str('Humidity: ') + str((env3_0.read_humidity())))))
  F.setText(str(.get()))
  .set({'Temperature':(env3_0.read_temperature()),'Pressure':(env3_0.read_pressure()),'Humididty':(env3_0.read_humidity())}, is_file=False)
  time.sleep(30)


if __name__ == '__main__':
  try:
    setup()
    while True:
      loop()
  except (Exception, KeyboardInterrupt) as e:
    try:
      from utility import print_error_msg
      print_error_msg(e)
    except ImportError:
      print("please update to latest firmware")

Credits

AJB2K3

52 projects • 32 followers

I have always had an interest in electronics but having failed my school exams, it has taken me 20+ years to produce products to share.

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M5GO IOT Starter Kit Part 5 EZData2

M5GO IOT Starter Kit Part 5 EZData2

Things used in this project

Hardware components

Software apps and online services

Story

M5GO IOT Starter Kit Part 5 - EZData2

Dataset Manager.

Contact Me.

Code

Expanding the ENVIII code to communicate with the EZData2 server.

Credits

AJB2K3

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