ESP8266 Community Forum

- Tue Jan 12, 2016 12:05 pm #38596 Hello all,

I bought a ESP-12E off amazon (prime sameday is deadly when you get a project itch) but I don't have any info on its clock speed, flash size etc to setup the arduino ide correctly (or just to know these things in general)

Is there a way of me finding this info out? I've got it setup and working with the esp8266 board manager in the arduino ide so can throw commands and sketches etc at it.

Best,

Sol

- Tue Jan 12, 2016 2:28 pm #38611 Afaik all ESP-12E boards have 4MB flash. You can verify this by checking the flash ID (e.g. with "esptool.py flash_id").
All ESP8266 chips have 80MHz clock speed by default and can be reclocked to 160MHz. I don't use the arduino IDE, but I assume if there's an option to choose, it will configure the clock speed accordingly.

- Tue Jan 12, 2016 2:36 pm #38612 Cheers,

I've seen this "esptool.py flash_id" referenced elsewhere but can't find where to get a copy, do you have a link?

Best,

Sol

- Tue Jan 12, 2016 2:40 pm #38614 Ah, just found it, I have:

Connecting...
Manufacturer: e0
Device: 4016

That seems to be:

#define AMIC_A25LQ032 0x4016 /* Same as A25LQ32A, but the latter supports SFDP */

Not to find out what option that means from the flash choice on the arduino ide...