2016 Microchip Technology Inc. DS50002466A-page 61
RN4870/71 BLUETOOTH
®
LOW ENERGY MODULE
USER’S GUIDE
Appendix B. Status Response Summary Quick Reference
B.1 INTRODUCTION
Tabl e B- 1 lists status messages that can be returned by the module through UART. The
status messages can be emitted in either Data or Command mode. Therefore, it is
important that the MCU sending the data, such as UART Transparent stream, be able
to recognize status messages.
The delimiters of the status messages can be changed using the S% command.
TABLE B-1: STATUS MESSAGES RETURNED BY RN4870
Status Message
Default Delimiter (%)
Description
%ADV_TIMEOUT% Advertisement timeout, if advertisement time is
specified by command A
%BONDED% Security materials such as Link Key has been
saved into NVM
%CONN_PARAM,<Interval>,
<Latency>,<Timeout>%
Update connection parameters of connection
interval, slave latency and supervision timeout.
%CONNECT,<0-1>,<Addr>% Connect to BLE device with address <Addr>
%DISCONNECT% BLE connection lost
%ERR_CONNPARAM% Failed to update connection parameters
%ERR_MEMORY% Running out of dynamic memory
%ERR_READ% Failed to read characteristic value
%ERR_RMT_CMD% Failed to start remote command, due to insecure
BLE link or mismatch pin code
%ERR_SEC% Failed to secure the BLE link
%KEY:<Key>% Display the 6-digit security key
%KEY_REQ% Request input security key
%INDI,<hdl>,<hex>% Received value indication <hex> for characteristic
handle <hdl>
%NOTI,<hdl>,<hex>% Received value notification <hex> for characteristic
handle <hdl>
%PIO1H% PIO1 rising edge event
%PIO1L% PIO1 falling edge event
%PIO2H% PIO2 rising edge event
%PIO2L% PIO2 falling edge event
%PIO3H% PIO3 rising edge event
%PIO3L% PIO3 falling edge event
%RE_DISCV% Received data indication of service changed, redo
service discovery
%REBOOT% Reboot finished
%RMT_CMD_OFF% End of Remote Command mode
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