Boot; Power Mode - RAK RAK411 Programming Manual

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
0 Normal
1 Sleep_Mode
2 Deep_Sleep
3 Deep_Sleep
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.
Wireless Part Wake-up Type
Normal No need
Power_Save No need
Power_Save SPI wake up
SPI wake up,
Shut_down
Reset
13
RAK411 PROGRAMMING MANUAL
Min Power
Consumption (AP)
80mA
10mA
5mA
2uA
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