One of the first aspects that we can note is the presence of many contacts on card’s border, including the now famous female contacts connector compatible with the Arduino shield. Each NUCLEO board differs for performances, power consumption, clock frequency and flash memory capacity of the STM32 microcontroller in figure.įrom here on, we will analyze the NUCLEO model F401 and we will move our first programming steps, but many of the aspects and features that we will see later will be valid for any other NUCLEO board. The whole series of NUCLEO development boards is equipped with a STM32 microcontroller based on ARM Cortex-M family, adopting a 32-bit RISC architecture. The board name comes from the microcontroller mounted on the board ( STM32F401) which is its heart. We will also see how to program it and test it by using some development environments available and a first sample program. In this post we will examine the NUCLEO F401RE board that is among the best performing in the series, not only because it is based on an ARM processor with a 84 MHz clock, a 512 Kb flash memory and an integrated floating-point unit, but also for a number of interesting features that we will see together. Some of these boards are simple clones, other are at much higher level having better performances and memory storage.Īmong those, a really interesting solution is represented by the development boards family called NUCLEO made by STMicroelectronics, a semiconductors leader company. The success of Arduino and its countless shields, kicked off in recent years the birth of several compatible development boards designed to help us creating in a short time, at low cost and easily, great and even complex electronic applications. More about this board, including a full datasheet, Gerber files, schematics, and other files are available from the Nucleo Resource Page.Today we present the first steps with the NUCLEO development boards, produced by STMicroelectronics, that can help us to move towards the ARM 32-bit world with simplicity and great performances, keeping a compatibility with Arduino expansion connectors so that we can use its commonly available shields. In the end, you can pick from a wide variety of IDEs. However, if you feel more comfortable with the Arduino IDE, that could be your best option. While the Cube IDE may be a bit bulkier than its Mbed counterpart, I find that the number of time-saving features built into it are worth the installation.Įven with a plethora of libraries available, a graphical interface that assigns pins their different functions, and the fact that Cube is built upon the popular Eclipse IDE all improving the development process, the automatically generated code is what ultimately led to my decision of downloading and installing STM32CubeIDE. It is great for quickly prototyping ideas, or modifying existing projects on the go. The Mbed IDE is easy to use, simple, and available online. It can, of course, be programmed with Mbed’s IDE which is similar to the Arduino IDE, or from the STM32CubeIDE. Once the correct drivers are installed, the Nucleo shows up as an Mbed board since it is Arm Mbed Enabled compliant. It also features ST morpho headers for STMicroelectronics’s own expansion boards. The STM32 Nucleo board shares its pinout with the Arduino Uno, making it compatible with Arduino Uno shields. Even if removed, it retains the ability to program the main board if reconnected with jumper wires between CN4 and the corresponding SWD signals available on the ST morpho connector. ST-LINKĪll Nucleo-64 boards, including the Nucleo-L476, employ their integrated ST-LINK/V2-1 debugger as removable mini-boards. It is designed for IoT projects that require more I/O pins and a 32-bit processor for data acquisition. This board’s MCU the STM32L4 is one of the ultra-low-power microcontrollers offered by STMicroelectronics featuring a Cortex-M4 processor with a speed of 80MHz and a flash of 1MB.
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