Data Sheet

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3. Basic AT Commands
3.2.12. AT+RFPOWER—Sets the Maximum Value of RF TX Power
3.2.13. AT+RFVDD—Sets RF TX Power According to VDD33
Example
• Set ESP8266 to be woken from Light-sleep, when GPIO0 is on low level:
AT+WAKEUPGPIO=1,0,0
• Set ESP8266 to be woken from Light-sleep, when GPIO0 is on high level. After the waking-
up, GPIO13 is set to high level.
AT+WAKEUPGPIO=1,0,1,13,1
•
Disable the function that ESP8266 can be woken up from Light-sleep by a GPIO.
AT+WAKEUPGPIO=0
Set Command
AT+RFPOWER=<TX󰐇Power>
Response
OK
Parameter
<TX󰐇Power>: the maximum value of RF TX power; range: [0, 82]; unit: 0.25 dBm.
Note
This command sets the maximum value of ESP8266 RF TX power; it is not precise. The actual
value could be smaller than the set value.
Example
AT+RFPOWER=50
Command
Query Command:
AT+RFVDD?
Function: Checks the
value of ESP8266
VDD33.
Set Command:
AT+RFVDD=<VDD33>
Function: Sets the RF TX Power
according to <VDD33>.
Execute Command:
AT+RFVDD
Function: Automatically sets the RF TX
Power.
Response
+RFVDD:<VDD33>
OK
OK
OK
Parameter
<VDD33>: power voltage
of ESP8266 VDD33;
unit: 1/1024 V.
<VDD33>: power voltage of ESP8266
VDD33 ; range: [1900, 3300].
-
Note
The command should
only be used when
TOUT pin has to be
suspended, or else the
returned value would be
invalid.
-
TOUT pin has to be suspended in
order to measure VDD33.
Example
AT+RFVDD=2800
Espressif
! /5814
2017.05