Data Sheet
Table Of Contents
ESP-12L WIFI MODULE V1
Copyright © 2018 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved
第 10 页 共 14
页
Rx 802.11g, 1024 bytes packet length ,
-70 dBm
-
56
-
mA
Rx 802.11n, 1024 bytes packet length ,
-65 dBm
-
56
-
mA
Modem-sleep①
-
20
-
mA
Light-sleep②
-
2
-
mA
Deep-sleep③
-
20
-
uA
Power Off
-
0.5
-
uA
Notes:
◼ Modem-sleep is used when such applications as PWM or I2S require the CPU to be working.
In cases where Wi-Fi connectivity is maintained and data transmission is not required, the
Wi-Fi Modem circuit can be shut down to save power, according to 802.11 standards (such
as U-APSD). For example, in DTIM3,when ESP8266EX sleeps for 300 ms and wakes up
for 3 ms to receive Beacon packages from AP, the overall average current consumption is
about 20 mA.
◼ Light-sleep is used for applications whose CPU may be suspended, such as Wi-Fi switch.
In cases where Wi-Fi connectivity is maintained and data transmission is not required, Wi-
Fi Modem circuit and CPU can be shut down to save power, according to 802.11 standards
(such as U-APSD). For example, in DTIM3, when ESP8266EX sleeps for 300 ms and wakes
up for 3 ms to receive Beacon packages from AP, the overall average current consumption
is about 2 mA.
◼ Deep-sleep is for applications that do not require Wi-Fi connectivity and only transmit data
over long time lags, e.g., a temperature sensor that measures temperature every 100s. For
example, when ESP8266EX sleeps for 300s then wakes up to connect to AP (taking about
0.3 ~ 1s), the overall average current consumption is far less than 1 mA. The current
consumption of 20 μA was obtained at the voltage of 2.5V.