The RN4020 is a Bluetooth Version 4.1 low energy module for designers who want to easily add low power wireless capability to their products. The small form factor, surface mount module has the complete Bluetooth stack on-board and is controlled via simple ASCII commands over the UART interface. The RN4020 also includes all Bluetooth SIG profiles, as well as MLDP (Microchip Low-energy Data Profile) for custom data. Developers can utilize the scripting feature to enable standalone operation without a host MCU or Processor. The RN4020 can be remote controlled by another module over a secure connection and can be updated via the UART interface or over-the-air.

Bluetooth® version 4.1 module
On-board embedded Bluetooth low energy stack
Simple ASCII command interface over UART
Multiple IOs for control and status
Secure AES128 encryption
Create custom services using command API
Data streaming with Microchip's Low Energy Data Profile (MLDP)