ESP8266 Community Forum

- Sat Jul 18, 2015 10:54 am #23572

It took me a little while to find it (I spend a LOT of time looking up ESP related info, there's lots of people posting blogs about things they've done with it, very useful to learn from), but this outlines the work required to free up GPIO9 and 10.

http://smarpl.com/content/esp8266-esp-2 ... and-gpio10

Thanks! Very useful.

One thing that confuses me is the use of a flash chip. I'm using an esp-12e, which is not the same board in the article--there is no external flash. So, does the 12e have an internal flash chip? Does it need the same "hardware mod" somehow?

- Sat Jul 18, 2015 11:14 am #23573 All the ESP modules are very similar on a basic level, some of them, like the ESP-12, 12E, etc.. just have a metal shield that is soldered to the board to cover the ESP8266, flash, crystal, etc... I assure you, the flash chip is there, it's just hidden.

Hackaday has a great example of a ESP-07 without the shield, I don't know if anyone has done the 12E yet, but the principle should work the same, you'll probably need a hot air gun.

http://hackaday.com/2015/02/21/esp8266- ... e-doa-fix/

- Wed Jul 29, 2015 6:05 am #24523 Hi, would you mind post the esp-201 schematics with the relays you're driving. I am trying to drive one 5V relay but I ended up with reverse logic switching the relay - diagram bellow. The difference is that I am using esp-201 instead of esp-01 module.

You do not have the required permissions to view the files attached to this post.