ESP8266 Community Forum

- Thu Jul 16, 2015 3:41 pm #23454

How do you see quickly what flash is installed? Ask the SDK?

Mostly by reading chip markings, ie 25Q40blah vs 25Q32blah or something similar, number after Q in almost all cases means Mbits.
40 - 4Mbit
32 - 32Mbit

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Mozz

- Fri Jul 17, 2015 1:33 am #23471 It's quite hard to read. I use the "torch" of my phone and a magnifying glass, still can't read it properly. Any tricks?

- Fri Jul 17, 2015 3:37 am #23478

It's quite hard to read. I use the "torch" of my phone and a magnifying glass, still can't read it properly. Any tricks?

Try this -

Code: Select allvoid setup() {
  Serial.begin(115200);
  Serial.println(ESP.getChipId());
  Serial.println(ESP.getFlashChipId());
  Serial.println(ESP.getFlashChipSize() / 1024);
}


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Mozz

- Fri Jul 17, 2015 10:23 am #23502 Some chinese flash chips have really bad printing (I've received some that I wasn't able to read at all)
BTW, esptool.py provides the option "flash_id".