ESP8266 Community Forum

- Mon Apr 18, 2016 7:08 am #45694 Can anyone help me?
The Led is supposed to go on and stay on for 5 secs.
After Uploading with ArduinoIDE the ESP13 works fine (Led goes on after button press), but after a reset or powercycle the ESP13 stops working.
After the Upload the Led connected to GPIO 13 stays fully off, like it should.
After a reset or powercycle it burns weak and does not respond to button press.

Video of the issue:


I used the ESP to Serial Schematic (meant for ESP12):
https://github.com/esp8266/Arduino/blob/master/doc/boards.md#minimal-hardware-setup-for-bootloading-only
Replaced the 100nF with a 470uF since this improved the Stability on the ESP 01 I also own.

Also:
Connected a button from GPIO 1 to Ground so that I can hold the button to flash the ESP13.
Connected a button from reset pint to ground to reset the ESP13.

It does not matter if the EN pin (CH_PD) is connected directly to +3.3v or via a 10k Ohms resistor.

RESOLVED! GPIO 0 pin was connected to GND on the board
TIP! Solder to pcb board to prevent instability / unwanted resets

Last edited by Nightmystic on Tue Apr 19, 2016 2:41 pm, edited 2 times in total.

- Mon Apr 18, 2016 7:54 am #45697 Hi, this is normaly that the ESP boots into flash mode again. When you power up in flash mode and flash the ESP, it runs the sketch as soon as it has finished loading and every thing is ok - when you reset or power down, it boots up in flash mode again and is waiting to be flashed (normaly why nothing works). Check your connections on GPIO 0 & 2 (both high for normal boot) and GPIO 15 (low for normal boot).

- Mon Apr 18, 2016 8:25 am #45702 Thanks! I will check if this resolves the issue

- Mon Apr 18, 2016 11:21 am #45730

Hi, this is normaly that the ESP boots into flash mode again. When you power up in flash mode and flash the ESP, it runs the sketch as soon as it has finished loading and every thing is ok - when you reset or power down, it boots up in flash mode again and is waiting to be flashed (normaly why nothing works). Check your connections on GPIO 0 & 2 (both high for normal boot) and GPIO 15 (low for normal boot).

What you are describing is flash mode, not normal boot, I need to know how to Normal boot

I removed the button to flash, because it is not needed like on the esp-01

I can even flash without using resistors like the picture on this page:
http://domoticx.com/esp8266-wifi-esp-12-module-aansluiten/

Last edited by Nightmystic on Mon Apr 18, 2016 1:35 pm, edited 1 time in total.