RAK411 PROGRAMMING MANUAL
V1.7
COPYRIGHT ©
SHENZHEN RAKWIRELESS TECHNOLOGY CO., LTD
ETDX1603021415
13
3.5 Boot
RAK411’s reboot time is about 210ms. After a normal start, the host sends the initialization
command, and the module will return start information:
ASCII------- Welcome to RAK411
HEX-------- 57 65 6C 63 6F 6D 65 20 74 6F 20 52 41 4B 34 31 31
3.6 Power Mode
RAK411 supports four power modes, shown as the following table:
Mode
Control Part
Wireless Part
Wake-up Type
Min Power
Consumption (AP)
0
Normal
Normal
No need
80mA
1
Sleep_Mode
Power_Save
No need
10mA
2
Deep_Sleep
Power_Save
SPI wake up
5mA
3
Deep_Sleep
Shut_down
SPI wake up,
Reset
2uA
pwrmode=0-------------Mode 0
Module works under the maximum performance, control part and wireless part are fully
opened.
pwrmode=1-------------Mode 1
The control part enters into shallow sleep, the wireless part maintains the current connection
status, and enters a low-power mode. The communication is normal, but this will reduce
performance of module, the speed of sending and receiving is reduced.
pwrmode=2-------------Mode 2
The control part enters into a deep sleep, the wireless part maintains the current wireless
connection status, and enters a low-power mode.The remote data or host initiates
communications to wake up control part, then enters into mode 1. If no sending and receiving
data, it automatically enters into Mode 2.