User's Manual

33
Wireless communication link
The wireless communication link operates in the 2.4 GHz ISM
band using GFSK (Gaussian frequency-shift keying), and a
proprietary bidirectional communication protocol. It continuously
switches between channels to avoid interference on any specific
channel.
Bluetooth Low Energy also operates in the 2.4 GHz ISM band,
using frequency hopping over 37 channels to combat interference.