ESP8266 Community Forum

Hi All

Has anyways done any WiFi strength testing with this new module over any of the previous ESP-12x modules?

Has anyone successfully loaded custom firmware to the esp-12s? Im having a lot of trouble.

stern0m1 wrote:Has anyone successfully loaded custom firmware to the esp-12s? Im having a lot of trouble.

i'm wondering about that, if GPIO-0 is pulled high by the new pullup resistors, how to you get the board into bootloader mode?

sej7278 wrote:

stern0m1 wrote:if GPIO-0 is pulled high by the new pullup resistors, how to you get the board into bootloader mode?

The same way as always, force the input low by connecting it to ground. The ESP-12S is functionally the same as the other ESP12 module. It has a larger capacitor across the supply (one of the best changes) and it has pull up resistors added on the pins that require it. With other modules these would have to be added externally.

The input resistors are about 10K. I think I measured 12K when I first got some.