ESP8266 Community Forum

- Sat Jun 20, 2015 1:56 am #21007 Moin Molda,

In 9 out of 10 cases it's the power supply.
The typical cheap chinese mb102 power supply is "specified" for 6.5 V to 12 V.
I won't run it at 12V. Easy to check with finger if it's getting hot.

30V? No.
Wiring is important to check especially on a breadboard.
Burning wires with 250 mA: no
Solid wire needed? No

Additional cap: can help

Do you have better flash success using lower baud rates?
Then maybe the usb adapter or its cable maybe a problem, too.

Cal

Get your modules here:

https://www.banggood.com/custlink/KvGGhGF4wG

- Sat Jun 20, 2015 4:24 am #21011

In 9 out of 10 cases it's the power supply. Nope - Wiring as I have seen so far
30V? No. Yep-40V one http://www.ebay.com.au/itm/LM2596-Voltage-Regulator-DC-DC-Buck-Converter-Adjustable-Step-Down-Module-/161720917914?pt=LH_DefaultDomain_15&hash=item25a7515f9a
Wiring is important to check especially on a breadboard. Yep
Burning wires with 250 mA: no Yep-published based on 3.3V @25C less voltage more current . Reported 450mA . have you seen how much wire is in these cheapies
Solid wire needed? No Yep Better

Additional cap: can help Yep

Get you modules here:

https://www.banggood.com/custlink/KvGGhGF4wG

- Fri Jul 31, 2015 2:04 am #24672 I am using the same power supply. My board breaks after several boots (when I connect it with the supply, the supply's ligth becomes weak and the esp won't work). Any idea of why this happens?