ESP8266 Community Forum

- Tue Jan 10, 2017 3:24 am #60777 Hello to all guys,
my name is Nicolas,
I really really need an help to start my testing on the ESP8266 esp01 module.
I need help to make the correct wiring.

At the moment I'm able to turn it on and recognise it in my wifi network as AI-THINKER XX but when i test a simple GETIP example of these library:https://github.com/sleemanj/ESP8266_Simple the result is:
Reset: General Error
Reset: General Error
.................

I bought these level shifters : http://www.ebay.it/itm/222258161505?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT to work with arduino and these is the wiring I'm trying without success.


I don't know where Is the problem. can someone help me please ?

Thank you so much,
Muplex

- Tue Jan 10, 2017 12:25 pm #60803 On the arduino webpage it says the 3V3 regulator can supply 50 mA - see https://www.arduino.cc/en/Main/ArduinoBoardUno. The ESP8266 needs up to 260 mA. So you need to add a separate regulator. One possibility is to use a AMS1117 module and feed it with the 5V supply.

- Tue Jan 10, 2017 12:53 pm #60804 3xAA-HR 15/51 - Ni-MH - 1.2v - 1200mA with a diode in series (0.4v drop) is ok?
3*1.2=3.6-0.4=3.2V - 1200mA

- Tue Jan 10, 2017 7:53 pm #60814

On the arduino webpage it says the 3V3 regulator can supply 50 mA - see https://www.arduino.cc/en/Main/ArduinoBoardUno. The ESP8266 needs up to 260 mA. So you need to add a separate regulator. One possibility is to use a AMS1117 module and feed it with the 5V supply.

The peak currents on startup can exceed 500 mA. A regulator/power supply should be capable of at least that. You need to consider the peak level otherwise you may have problems.