“( Further details on using the "Mu" MicroPython editor, and on the "Running-Hot" issue for my micro:bit can be found on:
www.instructables.com/id/BBC-Microbit-Power-Usage-Mu-an-Off-line-MicroPytho/?ALLSTEPS )”
“Just received my micro:bit, and downloaded the "Mu" editor for MicroPython (for off-line use). All seems to be working ok, and can get a "Hello World" program to run fine. However, I note that when powered from the micro-sd connector (ie. 5V from my computer-USB), the unlabelled IC on the right (next to the battery connector) gets really hot (far too hot to touch). The micro:bit seems to draw a constant 250mA from the USB port all the time (when flashing-a-program, when idle with no LEDs lit, or when running a "Hello World" program). I understand that this IC is the power management chip. Note that this IC does NOT heat up when powered from the 3V battery pack. From other posts, it seems that this hot IC might not be a good thing - but otherwise (at present) this micro:bit seems to be working great!”
