ESP8266 Community Forum

- Fri Aug 21, 2015 9:22 am #26697 Hey there,

So I've done something really stupid. I discovered the ESP8266, went around searching for viable IC's to use on a custom board, ordered some units and developed a full breakout board for it. I soldered it all yesterday and I wanted to play with it a little bit so I *began* searching how I could do this.

I've seen a lot of tutorials, tools, github repositories and I was really interested in having FOTA (Firmware Over The Air) but I have no idea if the ESP I bought has the SPI flash required for it. I didn't take into account the possible necessity of having an external SPI flash and now I don't know if the module I bought has it or not. The aliexpress page for the product doesn't mention it and searching the web I can't find it. I bought the ESP8266-12, pictures attached to this post.

Thanks for the help

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- Fri Aug 21, 2015 4:02 pm #26729 Howdy,
See the following:

https://blog.adafruit.com/2015/05/06/ne ... le-esp-12/

This shows "under the shield" of the ESP-12. It has a 4MBit (512K byte) flash on the board.

Neil

Free ESP8266 book available for download here.

- Fri Aug 21, 2015 5:05 pm #26736 It is really depends of the batches...
All my ESP12 have only 512KB but all my ESP12E have 4MB.

- Sat Aug 22, 2015 6:35 am #26776 Phew, thanks for the clarification ! Time to start playing with some FOTA!