A new mbed Microcontroller based on a Cortex-M0 is coming!

Overview¶

The new mbed Microcontroller is designed for prototyping USB devices, battery powered applications, and 32-bit ARM Cortex-M0 designs. It is entering public beta testing now, so this page covers its progress to final release!

Beta batch arrives¶

Inside these rather anonymous brown boxes are 100 beta versions of our new Cortex-M0 mbed Microcontroller, hot off the production line!

That means we're about ready to start beta trials! More details coming soon...

Example: Use in Battery Applications¶

This board should be good for prototyping battery applications. Here is an example of it being sent to sleep, woken up by a button to increment and update a screen, then going back to sleep:

It is running from a couple of AA's, and takes a couple of mA when not doing anything. The code is using some new sleep() and deepsleep() functions of the mbed C/C++ SDK. The code for this example uses deepsleep(), and looks like:

#include "mbed.h"
#include "TextLCD.h"

TextLCD lcd(p21, p23, p24, p25, p26, p27);
InterruptIn wakeup(p14);

int i = 0;

void count() {
    lcd.locate (0,1);
    lcd.printf("%d",i);
    i++;
    wait(0.5);
}

int main () {
    wakeup.rise(NULL);  // Setup rising edge interrupt (no handler function needed)

    lcd.printf("Hello World!");

    while (1) {
        deepsleep();  // Deep sleep until external interrupt
        count();      // We've come out of sleep due to interrupt, so count!
    }
}

For both sleep() and deepsleep(), all state is retained so you can see it is a nice simple programming model. Should be great for quickly prototyping some things that need to run off batteries.

I want one!¶

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• m0-release mailing list

Sign up if you want to get updates as and when they progress through to release later this year!