EM Microelectronics has introduced a low-power Bluetooth V5.0 low energy proximity beacon and accelerometer little bigger than the CR2032 coin cell that powers it. Called EMBC22, it “is compatible with beacon formats including iBeacon, Eddystone, AltBeacon and proprietary systems such as Quuppa Intelligent Locating System,” according to distributor Omni Pro Electronics, which is stocking the part. ...
This story continues at Coin-like Bluetooth beacon includes accelerometer and user reconfiguration
Or just read more coverage at Electronics Weekly