ESP8266 12E uploading easy firmware

[tvasudev007]

Can someone tell me about circuit connections & configuration of settings using arduino IDE for ESP8266 12E module for uploading easy esp8266 firmware.

I uploaded the firmware into esp8266 01 & its working. But unable to upload it to esp8266 12E module. What type of Board should I select in Arduino Board Manager for 12E model.? What are circuit connections?

Currently my connections are as follows

GND - GPIO 00 , GPIO 15 , GND
VCC- GPIO02 , EN(CH_PD) ,VCC
RX-TX
TX-RX.

Is this correct? I am able to successfully upload using Sparkfun esp8266 thing and also using NODEMCU 12E

[ocmeros]

Hi,

I also have problems with flashing my ESP-12E.
I also get garbage data on several baudrate's with putty.
When I normally connect the ESP (not in flashing mode) I see the hotspot of the ESP,
but I'm not able to get serial communication going with this ESP.

Do you have normal data when you connect your ESP to putty?

Remco

[tvasudev007]

What do you mean by normal connections?? I'm not even able to see any access points of esp . Please tell me the normal circuit connections

[BertB]

I do not have a 12E, but I do have several 12s active.
Below is how I utilize them:


You have to pull GPIO-00 to ground and toggle the RST terminal when you want to program it.
I use the Huzzah board setting to program it, but for the ESP-12E, you could try NodeMCU 1.0.

Last but not least, on this forum, another description :http://www.esp8266.nu/forum/viewtopic.p ... t=10#p1994

[tvasudev007]

Thanks dude. It helped me a lot.I'll come back to you once I test it.