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Topic: problem with power of ESP8266 "9v" led blue blinking (Read 94 times) previous topic - next topic

Jalal711

hi everyone in my project based about ESP8266 i power on my project with pc via cable micro usb then esp8266 connect tothe wifiand send data to app android "blyn" but if i use external battery lie that :

a blue led in esp8266 start blinking and the esp doesn't connect to the wifi and a few moment later the power is taking off.
anyone can help me

wvmarle

Please post complete circuit diagram. How is it connected? Which module/development board?

You sure such a battery can deliver the current the ESP needs for it's WiFi? If connected through a linear regulator you lose over 60% of the battery's energy there and then.
Quality of answers is related to the quality of questions. Good questions will get good answers. Useless answers are a sign of a poor question.

westfw

In general, that kind of battery can't provide the sort of power (200mA+) that an esp8266 needs to operate.

Jalal711

the circuit have OLED, NEO6MV2, LED, sensor track all of this are powered by Out pin of esp8266 "3.3v" and esp8266 is powered by battery of 9v the circuit work for 1 minute than powering off

Robin2

the circuit have OLED, NEO6MV2, LED, sensor track all of this are powered by Out pin of esp8266 "3.3v" and esp8266 is powered by battery of 9v the circuit work for 1 minute than powering off
You need to tell us exactly what ESP8266 you are using - post a link to its datasheet.

The ESP8266 modules that I have only work on 3.3v and I would expect them to be destroyed if I connected a 9v battery to them.

...R
Two or three hours spent thinking and reading documentation solves most programming problems.

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