I think that you should do an episode about Mbed (or using Mbed devices), and it is a great platform for microcontrollers, and would benefit a lot of people who need more power than an arduino, but can't figure out the Mbed. also, they are cheaper than arduinos (see https://goo.gl/ssJvUM) and are 32 bit, so comparable to the PIC32 that you have used in previous episodes.
