ESP8266 Community Forum

- Thu Aug 06, 2015 3:25 pm #25225 Yes.... ok... but my power supply meets at least the minimum requirements and it should work.
And does not matter if I use my own power supply or the "YwRobot Breadboard Power Supply".

- Thu Aug 06, 2015 4:12 pm #25227 Hi, try sticking a diode in your 3.3v line to the ESP. This should drop 0.7 volts from your supply leaving 2.6v which is enough to run an ESP device (this is for diagnostic, not intened to be a long term fix). Does that cure the problem?

- Fri Aug 07, 2015 12:48 pm #25293 Give me two days to buy the diode.
My electronic basic equipment is very small

On Thuersday I will take a measurement with a borrowed oscilloscope.

- Mon Aug 10, 2015 10:15 am #25531 Hi!

Tomorrow I'll measure the voltages with an oscilloscope.

An hour ago I flashed NODEMCU and then I uploaded this litle webserver program to the board. What I can say by now is that I ping the board since 45 minutes without any drop outs!! The response time is always <3ms.

What I did today:

• Bought a new 2A wall power supply.
• Added a bigger elco to the 3.3V side.
• Retested three boards

Summary after a retest:

• AT firmware 0.9.5: Connected to WiFi by using simple AT commands. No loss of connection for over an hour. Cold
• NodeMCU 0.9.5: Implemented a simple Lua HTTP webserver. No loss of connection for over an hour. Hand warm
• "HelloServer" based sketch: loss of connection after a few seconds/minutes. Gets very warm.
• DHT11 example based sketch: More then 3 connection loss (missing values) within an hour. Gets very warm.