The RN4020 is a fully-certified, 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.
The RN4020 has a built-in high performance PCB antenna optimally tuned for long range, typically over 100 meters. The compact size, 11.5 X 19.5 X 2.5mm, enables ease of integration in size-constrained applications. The RN4020 can be used with any low cost microcontroller for intelligent Bluetooth Low Energy applications. The RN4020 is fully-certified, has the complete Bluetooth stack on-board the module, and is controlled via a simple ASCII UART interface, making it a true drop-in
Solution that is easy to use, and easy to prototype, greatly speeding time to market.

Feature
Fully-certified 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
GAP, GATT, SM, L2CAP and integrated public profiles
Create custom services using command API
Data streaming with Microchip's Low Energy Data Profile (MLDP)
Scripting for standalone module operation with analog and digital data collection
7 dBm transit power for 100m+ range
Field-upgradeable via the UART interface or over-the-air
Software configurable role as peripheral or central, client or server
Compact form factor 11.5 X 19.5 X 2.5mm
Low power modes
UART interface, GPIO, ADC
64KB internal serial flash
Castellated SMT pads for easy and reliable PCB mounting
Environmentally friendly, RoHS compliant
Certifications: FCC, IC, CE, QDID

Parameter name Value
TypeBluetooth Module
Power Output (dBm)7.00
InterfaceUART, PIO, AIO, SPI
Pin Count24
PackagesSurface mount
RF ModuleTrue
RF TransceiverTrue
Operating Temperature-30° C to +85° C
RF Data Rate1
Freq. Range2.4-2.48
Input Sensitivity (mVpp)-92.50
Tx Power Consumption (mA)16.00
Rx Power Consumption (mA)16.00
SleepYes
MACYes
EncryptionAES128