Amazing new little device, and with it's much more powerful MCU (nRF52-series Cortex-M4 rather than the nRF51 Cortex-M0+) with 8x the RAM you can now even run small Machine Learning algorithms on it. Here it's responding to my voice: https://www.youtube.com/watch?v=fNSKWdIxh8o&feature=emb_titl...