I found these awesome chips from Texas instruments which seems to be a really good choice for projects involving IOT
but the problem is they are BGAs so not everyone can use them
it’d be good if there were some breakout boards for these
http://www.ti.com/product/cc2540
SimpleLink Bluetooth Smart Wireless MCU with USB
and
http://www.ti.com/product/CC2530/toolss … RRWidgetID
Second Generation System-on-Chip Solution for 2.4 GHz IEEE 802.15.4 / RF4CE / ZigBee