The latest standard of Bluetooth as on this date is 5.4
There are several Bluetooth + MCU transceivers available in the market. They are called by the name Wireless MCU
The advantage of modern day Bluetooth transceivers is low power and long range
The modern day BLE transceivers can transmit at a higher rate as well.
Based on Maximum power output of Bluetooth module, they are divided into classes - 1,1.5,2,3
Class 1 BLE devices can transmit up to maximum power of +20dBm which is 0.1W
Security is the very important factor in modern day BLE transceivers. The below points cover the security aspects
Arm TrustZone
Secure boot
Root of Trust
Application security
Data security
Secure key management
Longer battery life of the devices employing BLE chips is of primary importance. For example, a BLE enabled device can run on RTC coin cell for periods up to 10 years.
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