ESP8266 Community Forum

- Mon Jul 24, 2017 8:54 am #68509 Hi,

How do I know the size of the flash of the ESP-03 ? I'm using Arduino IDE and ESP8266 Core 2.3.0, when I export the bin file I have several option, but I don't know which one is correct. ? And what about SPIFFS size? Or not?
Thanks

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- Tue Jul 25, 2017 7:55 pm #68569 The ESP-03 has a 4Mbit (= 512kbit) flash by default (take a magnifying glass and see the inscription of the flash, it should read "25Q40BT").

Assumption is the mother of all f*ckups. At least: that's what I'm assuming.

- Wed Jul 26, 2017 1:19 am #68580 Hi QuickFix , thank you for your reply.

And what about the SPIFFS?

Thanks

- Wed Jul 26, 2017 5:59 am #68589 Depending on your needs, you can either use 64k or 128k for SPIFFS on a 512k flash.

But don't take my word for it, you'd better do some reading on the topic, since one instructable is worth more than my thousand words.

Assumption is the mother of all f*ckups. At least: that's what I'm assuming.