Sources for ESP8266 modules

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Virtually all ESP modules are manufactured in China and are generally available from the following sources by performing a search for ESP-01 or ESP8266. You should expect prices and delivery to vary widely. The modules use an external flash memory chip which is key to the operation of the ESP8266 chip and it's a good idea to verify with the merchant what chip is provided. Users have experienced problems with modules manufactured with the PUYA memory chip. The symptoms are that either one can't connect to the chip or that the chip's SPIFFS memory cannot be used, which may be a requirement for some versions of custom ESP firmware (such as the ESPixelStick firmware). Modules known to be suitable for use have the BGMicro, cFEON or WinBond memory chips (there may also be other types that are acceptable).

  • eBay.com
  • Amazon.com
  • AliExpress.com
  • Banggood.com
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