Silicon labs bluegiga rf modules silicon labs bluegiga bled112 v1 the bled112 bluetooth smart dongle integrates all bluetooth smart features the usb dongle has a virtual com port that enables seamless host application development using a simple application programming interface the bled112 can be used for bluetoothsmart development with two bled112 dongles you can quickly prototype new bluetoothsmart application profiles by utilizing bluegigas profile toolkittm and also automate in modu