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By SteveSpencer
#29845 Hi

I have a number of ESP-201 and 01/07/12/12E modules, a lot of which have the metal can over the ESP8266 and the SPI flash chip.

For some of them, I can identify the flash chip from it's manufacturer ID and device ID. For some, the ID isn't a familiar one.

Is there a list of device IDs and corresponding sizes anywhere?

(Of course, I could either flash a custom firmware which does a similar thing to NodeMCU's node.info(), and retrieves the flash size by reading at successive boundaries until it fails, which I am currently doing)
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By pzw
#29886 If your module has the Ai Thinker AT firmware, try the "AT+RST" command... If I do it, it tells me after restart what size/speed/mode flash chip is installed...