stm32 nucleo lcd display for sale

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STM32 Nucleo boards from the SNT educational kit can be purchased online or by order form from electronic component suppliers such as Farnell, RS Online, Conrad, Digikey or Mouser.

The aim of thisBluetooth LE projectis to read air quality sensor data and show it on an LCD display which is connected to STM32 board. A web browser will read the sensor data and pass it to STM32 board using BleuIO.

For this project, we will needtwo BleuIO USB dongles,one connected to the Nucleo board and the other to a computer running the web script and aHibouAir – Air quality monitoring device.When the BleuIO Dongle is connected to the Nucleo boards USB port the STM32 will recognize it and directly start advertising. This allows the Dongle on the computer port connect with the web script.

With the web script on the computer, we can scan and get air quality sensor data from HibouAir. Then we send these data to LCD screen connected to STM32 using Bluetooth.

We have used a STM32 Nucleo-144 development board with STM32H743ZI MCU (STM32H743ZI micro mbed-Enabled Development Nucleo-144 series ARM® Cortex®-M7 MCU 32-Bit Embedded Evaluation Board) for this example. This development board has a USB host where we connect the BleuIO dongle.

What we will needA board with a STM32 Microcontroller with a USB port. (A Nucleo-144 development board: NUCLEO-H743ZI2, was used developing this example. (https://www.st.com/en/evaluation-tools/nucleo-h743zi.html)To connect the dongle to the Nucleo board a “USB A to Micro USB B”-cable with a USB A female-to-female adapter can be used.)

Connect the BleuIO dongle to the computer. Run the web script to connect to the other BleuIO dongle on the STM32. Now you can send sensor data to the LCD screen.

Create a simple Html file called index.html which will serve as the frontend of the script. This Html file contains some buttons that help connect, read advertised data from the HibouAir to get air quality sensor data, and send this data to the LCD screen which is connected to stm32.

The script has a button to connect to COM port on the computer. There is a text field where you can write sensor ID of the air quality monitor device. Once connected, the script will try to get advertised data from the sensor and convert it to a meaningful data. After that it will send this data to the STM32 board which then display on the LCD screen.import * as my_dongle from "bleuio"

Follow the steps to get the MAC address of the dongle that is connected to STM32- Open this site https://bleuio.com/web_terminal.html and click connect to dongle.