ESP8266 Community Forum

Hi I made a temperature logger, with Esp12 and DHT11. I use deepsleep mode and I send my values in every 10 min to the cloud. I've faced with a problem I used 3 AAA batteries and in a one week ESP12 has drained all batteries. In my circuit I have;
4 x10K resistor on ESP's GPI0,GPIO15,GPI02 AND EN pins
2 x 0.1 uF, 1 x 47 uF, 1 x 2.2 uF capacitor
and I'm using LF33CV 3.3V voltage Regulator.
1 Week is totally ridiculous for my purpose. There is lots of topics in the forum but what I want to ask is those components in my circuit are really energy drainer or the problem is ESP12's itself?

I have a cheap multimeter so I actually can't measure the current. Any advice?

Hi, is the DH11 +ve connected to 3.3V or one of the GPIOs? If its connected to 3.3V it wil be powered all the time and use something like 200mAH in a week. If you power it from one of the GPIOs it will only draw 2mA when measuring. Whilst that doesn't account for all the cells discharge it will help.

Can you give us some info about how you connect pins and maybe shema and lua code (if lua). Those days I think I will try to do the same.
Faramon

Stop using AAA batteries. Use AA at the least.

As far as the code. Turn a pin high on power up. This pin is for the sensor power. Get the reading. Then turn the pin low. Send your information, then power down.

WiFi is not a low power way of communicating. Its cheap and its easy.