With mbed you can select a more capable microcontroller that will better handle that application. On the other hand, you might be running a screen, some DSP code, need some more processing power and want to have around 100kb of memory on board. The mbed platform offers a bit more flexibility by letting you pick both your microcontroller board to best suit your application, as well as allowing you to choose which compiler will best suit your project.įor example, you might have a small program that only needs to use 3-4 pin and a single SPI bus, so a more economic chip is all you will need.
Many readers will likely be familiar with the Arduino environment and have probably used it with the Atmel 328 microcontroller. This setup offers some advantages to embedded developers using microcontrollers. The mbed IDE can be accessed through a web browser or downloaded to your Linux desktop (see instructions on this, below.) You can, however, set up your Linux machine to write control programs for an ARM-based microcontroller using the mbed platform. By contrast the ARM Cortex-M is a microcontroller level chip which might run at 16-100Mhz, contain 2-100kb of RAM, and some flash memory to contain only the program that you want to execute.
NUCLEO F401RE DEVELOPMENT ARDUINO IDE SERIES
(See my long series of reviews on of ARM-based computers that run Linux).
NUCLEO F401RE DEVELOPMENT ARDUINO IDE FULL
The ARM CPU used in the BeagleBone Black and other single board computers is designed to interface with half to a few gigabytes of RAM and allow a full operating system such as Linux to be run on the computer. The mbed platform is an open source environment which allows you to write control programs in C/C++ and deploy them to many ARM Cortex-M based microcontroller boards. A microcontroller may not run any operating system at all, and simply start executing a single program soon after power is applied. You might want to use a microcontroller to turn a small servo motor, or connect some buttons and a screen to build a custom calculator, for example. A microcontroller contains a processor, some memory, and usually has some connections for interacting with external hardware.
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