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I recently received an MXCHIP IoT DevKIT and I experimented the Azure connectivity functions available in the Arduino library for this platform.
The "DevKit -Get Started" section of the github gives detailed description of each step:
I'll summarize the actions I had to perform to establish an MQTT exchange between my MXCHIP board and Azure IoT Hub:
I first installed two tools on my machine:
- Ardunio IDE
- Visual Studio Code
VS Code contains all specific entries required to handle Azure functions, which are not in the Arduino IDE, moreover it is a pretty efficient IDE compared to Arduino.
Two extensions must be installed in VS Code: "Azure IoT Workbench" and "Arduino". Then the specific platform for the MX board must be installed from Arduino Board manager.
At this point I had all the tools to build and run the GetStarted applicat ...
WiFi modules have become way more accessible since a few years, and prices are going down fast.
Starting from the work done on a student's project, I used the tiny RedBear Duo to build an Azure connected weighs.
Well... from the top it is an "off the shelf" weighs, the interesting part comes when you turn it upside down:
The main job was to connect the existing four sensors to a dedicated HX711 amplifier circuit (bottom left, small PCB).
Then an LCD display was added to interact with the user (bottom left, large PCB)
The weighs has four capacitive buttons which were also connected (botton left, blue wires)
The original power supply was replaced with a stronger 5V with a switch. (top left and center)
The ReaBear board is the brain of the weigths, it has all I/O interfaces plus WiFi connection to report to Azure.
In addition to indicating weight, the system provides a clock from the Azure connection. Measures are pushed to a dedicated Azure table, and provides a good following for indi ...
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