ESP8266 Community Forum

- Sat Aug 11, 2018 7:20 pm #77696 Hello ESP8266 Forum,

I bought a NodeMCU, I figured out how to get it to grab compiled code, go to HTTP Servers, etc.

But I was thinking, I spent extra to get extra storage: Which was advertised as 32Megabits or 8 Megabytes And sure enough, a WinBond 25Q32JVSIG-1815 chip is soldered onto the board, which is SPI EEPROM.

However when I run the code

Code: Select all#include <ESP.h>
#include <ESP8266WiFi.h>
#include <EEPROM.h>
void setup(){
Serial.begin(9600);
while(!Serial);
Serial.println(EEPROM.length());
}
void loop(){}


I get the response of

Code: Select all0

Why? Where is the 32Megabits? How do I access it? Is there a special ESP8266 based EEPROM header? Is it even viewable from the CPU?

- Mon Aug 13, 2018 12:55 am #77707 just read up here
http://arduino-esp8266.readthedocs.io/e ... tml#eeprom
and
http://arduino-esp8266.readthedocs.io/e ... ystem.html