Microchip RN4020 Bluetooth 4.1 Module, Terminal Tips To Firmware Update
PIC. 1 RN4020: Low-Energy Bluetooth V4.1 Module By Microchip
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 onboard and is controlled via simple ASCII commands over the UART interface.
The RN4020 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 remotely 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 has the complete Bluetooth stack onboard 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.
RN4020. Method for Update to the last actual Firmware Version
Configure pins:
pin MLDP/CMD = LOW(CMD) ; pin SW-WAKE = HIGH
Make Response
PowerON: CMD
set UART Baud-Rate = 115200
SET FLOW Control = None
write on KBD to Module Response
WP AOK
SF,2 AOK
R,1 Reboot ,CMD
V 1.10. ……..
SR,02000000 AOK
R,1 Reboot,CMD
GR 02000000
~,1 DFU
SET FLOW Control = HW Handshake
SEND FILE 1.2x.DFU /as a bin file format.
SET FLOW Control = None
R,1 Reboot,CMD
V 1.2x …..
PowerOFF
There I represent you the latest RN4020 BT LE 4.1 firm update v.1.23
Link to update utility, up to v.1.23
DIAGRAM 1. RN4020 – Helpful diagram for quick power modes configuration
Bluetooth’s Smart Discover
Microchip’s Smart Discover for iPhone or iPad provides the ability to scan and connect to nearby Microchip Bluetooth Low Energy (BLE) peripherals, listen to BLE broadcasters and more.
Bluetooth’s Smart Data
Microchip’s Smart Data provides the ability to scan, connect and exchange data between an iPhone or iPad and the RN4020 with Microchip’s Low Energy Data Profile (MLDP).
AMAZON.CO.UK Affiliate Link: RN4020 – Bluetooth LE V4.2 Module:
CONRAD.COM Affiliate Link: Expansion Microchip Technology RN4020-V/RM:
{ Source: Microchip }
